Notebookcheck

LG Gram 14T90N Convertible Review: A CPU Downgrade

Unimpressive performance for the price. The latest LG Gram 14 2-in-1 is the Comet Lake-U update to last year's Whiskey Lake-U model. Unfortunately, the newer model doesn't give us very many compelling reasons to purchase it over the older one.

The 14-inch 2020 LG Gram 14T90N succeeds last year's Gram 14T990 that was revealed ahead of CES 2019. The second generation model brings Comet Lake-U CPU options on-board to replace the older Whiskey Lake-U family.

Our test unit here comes with the Core i7-10510U CPU, 1080p touchscreen, 512 GB NVMe SSD, and 16 GB of DDR4 RAM for $1400 USD retail. There appears to be no other configuration with Intel 10th gen CPU options aside from the Core i7 SKU in review.

Direct competitors include other subnotebook convertibles like the Asus ZenBook 14 Flip, Dell XPS 13 7390 2-in-1, Lenovo Yoga C940, HP Spectre x360 13, and the Microsoft Surface Pro series.

More LG reviews:

LG Gram 14T90N (Gram Series)
Processor
Intel Core i7-10510U 4 x 1.8 - 4.8 GHz, Comet Lake-U
Graphics adapter
Intel UHD Graphics 620, 26.20.100.7323
Memory
16384 MB 
, 8 GB soldered, 8 GB DDR4-2666 SODIMM, 10-10-10-28, Dual-Channel
Display
14 inch 16:9, 1920 x 1080 pixel 157 PPI, 10-point capacitive, native pen support, LG Philips LP140WFA-SPY1, IPS, LGD0644, glossy: yes, 60 Hz
Mainboard
Intel Comet Lake-U PCH-LP Premium
Soundcard
Intel Comet Lake PCH-LP - cAVS
Connections
3 USB 3.0 / 3.1 Gen1, 1 USB 3.1 Gen2, 1 USB 3.2 Gen 2x2 20Gbps, 1 Thunderbolt, 1 HDMI, 1 DisplayPort, 1 Kensington Lock, Audio Connections: 1.5 W x 2, Card Reader: MicroSD reader, 1 Fingerprint Reader, Sensors: Accelerometer
Networking
Intel Wi-Fi 6 AX201 (a/b/g/h/n = Wi-Fi 4/ac = Wi-Fi 5/ax = Wi-Fi 6), Bluetooth 5
Size
height x width x depth (in mm): 18 x 325 x 211 ( = 0.71 x 12.8 x 8.31 in)
Battery
72 Wh Lithium-Ion, 4-cell
Operating System
Microsoft Windows 10 Home 64 Bit
Camera
Webcam: 720p
Primary Camera: 0.9 MPix
Additional features
Speakers: 1.5 W x 2, Keyboard: Chiclet, Keyboard Light: yes, USB to RJ-45 adapter, LG Reader Mode, Control Center, Power Manager, Easy Guide 2.0, 12 Months Warranty
Weight
1.15 kg ( = 40.57 oz / 2.54 pounds), Power Supply: 254 g ( = 8.96 oz / 0.56 pounds)
Price
1400 USD
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Rating
Date
Model
Weight
Height
Size
Resolution
Best Price
81 %
04/2020
LG Gram 14T90N
i7-10510U, UHD Graphics 620
1.2 kg18 mm14"1920x1080
81 %
02/2020
Asus ZenBook 14 UM431DA-AM020T
R7 3700U, Vega 10
1.4 kg16 mm14"1920x1080
86 %
10/2019
Dell XPS 13 7390 2-in-1 Core i7
i7-1065G7, Iris Plus Graphics G7 (Ice Lake 64 EU)
1.3 kg13 mm13.4"1920x1200
89 %
03/2020
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
i7-10510U, UHD Graphics 620
1.2 kg15.4 mm14"3840x2160
86 %
11/2019
Dell XPS 13 7390 Core i7-10710U
i7-10710U, UHD Graphics 620
1.2 kg11.6 mm13.3"3840x2160

Case

LG advertises an aluminum alloy body that satisfies MIL-STD 810G standards. In practice, however, the chassis is more flexible than most competing Ultrabook convertibles like the HP Spectre x360 13, Dell XPS 13 7390 2-in-1, or Asus ZenBook 14 Flip. This is especially true of the display which doesn't feel nearly as rigid as the displays on any of the aforementioned alternatives. It's still a high quality design and look, but users shouldn't expect it to be as sturdy in the hand. We find the chassis to be most similar to the Samsung Notebook 9 Pen in terms of rigidity.

It's worth noting that the LG Gram 14T90N convertible uses the exact same chassis as the Gram 14T990 convertible which is itself a modified Gram 14Z980 clamshell. Thus, the 14T90N will only be worthwhile if you value its newer Comet Lake-U CPU and Thunderbolt 3 compatibility.

As its name would suggest, one of the key selling points of the LG convertible is its light weight of only 1.2 kg. This is actually heavier than the Gram 14 clamshell by about 200 g due to the slightly thicker profile and stronger hinges, but the system is still one of the lighter subnotebooks in its category. The HP Spectre x360 13, for example, is heavier than our Gram 14 convertible even though it carries a smaller 13.3-inch display.

Lightweight aluminum alloy chassis
Lightweight aluminum alloy chassis
Lid uses Gorilla Glass 5 whereas the latest XPS 13 9300 uses Gorilla Glass 6
Lid uses Gorilla Glass 5 whereas the latest XPS 13 9300 uses Gorilla Glass 6
Hinges are uniform and sufficiently firm at all angles with only minimal teetering at worst when typing
Hinges are uniform and sufficiently firm at all angles with only minimal teetering at worst when typing
Matte gray surface hides fingerprints well
Matte gray surface hides fingerprints well
One of the easier 14-inch laptops to use as a convertible because of the low weight
One of the easier 14-inch laptops to use as a convertible because of the low weight
Rounded edges and corners. There is no integrated stylus recess unlike on the Lenovo Yoga C900 series
Rounded edges and corners. There is no integrated stylus recess unlike on the Lenovo Yoga C900 series
325 mm / 12.8 inch 211 mm / 8.31 inch 18 mm / 0.709 inch 1.2 kg2.54 lbs324 mm / 12.8 inch 212 mm / 8.35 inch 16 mm / 0.63 inch 1.4 kg3.06 lbs322.6 mm / 12.7 inch 210.8 mm / 8.3 inch 15.2 mm / 0.598 inch 994 g2.19 lbs320.3 mm / 12.6 inch 215.6 mm / 8.49 inch 15.7 mm / 0.618 inch 1.4 kg2.98 lbs304 mm / 12 inch 217 mm / 8.54 inch 14.6 mm / 0.575 inch 1.3 kg2.93 lbs296 mm / 11.7 inch 207 mm / 8.15 inch 13 mm / 0.512 inch 1.3 kg2.93 lbs

Connectivity

Port options and positioning are identical to the clamshell Gram 14 save for the addition of a Sleep button along the right edge. It's not a very useful feature especially since we can't find a way to customize the button.

One major connectivity update from last year's Gram 14T990 is the addition of Thunderbolt 3 support as exemplified by the huge Thunderbolt sticker on the right palm rest.

Front: No connectivity
Front: No connectivity
Right: MicroSD reader, 3.5 mm speakers, USB 3.0 Type-A, Kensington Lock
Right: MicroSD reader, 3.5 mm speakers, USB 3.0 Type-A, Kensington Lock
Rear: No connectivity
Rear: No connectivity
Left: AC adapter, USB 3.0 Type-A, HDMI, USB 3.0 Type-C + Thunderbolt 3
Left: AC adapter, USB 3.0 Type-A, HDMI, USB 3.0 Type-C + Thunderbolt 3

SD Card Reader

The spring-loaded MicroSD reader offers average transfer rates of ~80 MB/s. Moving 1 GB worth of pictures from our UHS-II test card to desktop takes about 14 seconds compared to half that on the XPS 13.

Inserted MicroSD card still protrudes by about 1 mm
Inserted MicroSD card still protrudes by about 1 mm
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Dell XPS 13 7390 2-in-1 Core i7
  (Toshiba Exceria Pro M501 64 GB UHS-II)
144.6 MB/s ∼100% +98%
LG Gram 14T90N
  (Toshiba Exceria Pro M501 64 GB UHS-II)
73.14 MB/s ∼51%
LG Gram 14Z980-U.AAW5U1
  (Toshiba Exceria Pro M501 microSDXC 64GB)
72.7 MB/s ∼50% -1%
Asus ZenBook 14 UM431DA-AM020T
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
26.4 MB/s ∼18% -64%
maximum AS SSD Seq Read Test (1GB)
Dell XPS 13 7390 2-in-1 Core i7
  (Toshiba Exceria Pro M501 64 GB UHS-II)
187.5 MB/s ∼100% +130%
LG Gram 14Z980-U.AAW5U1
  (Toshiba Exceria Pro M501 microSDXC 64GB)
85.91 MB/s ∼46% +5%
LG Gram 14T90N
  (Toshiba Exceria Pro M501 64 GB UHS-II)
81.63 MB/s ∼44%
Asus ZenBook 14 UM431DA-AM020T
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
37.1 MB/s ∼20% -55%

Communication

The Intel AX201 comes standard for Wi-Fi 6 and Bluetooth 5 compatibility. We're able to record real-world average transfer rates of 800 to 900 Mbps when standing one meter away from our Wi-Fi 6-enabled Netgear RAX200 router. Though slower than expected when compared to other Wi-Fi 6 laptops, we at least did not experience any connectivity issues.

Networking
iperf3 Client (receive) TCP 1 m 4M x10
Acer Aspire 5 A514-52-58U3
Intel Wi-Fi 6 AX201
1282 (1203min - 1358max) MBit/s ∼100% +52%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Wi-Fi 6 AX201
1251 (803min - 1358max) MBit/s ∼98% +48%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel Wireless-AC 9560
1130 (1072min - 1174max) MBit/s ∼88% +34%
LG Gram 14T90N
Intel Wi-Fi 6 AX201
846 (461min - 913max) MBit/s ∼66%
iperf3 Client (transmit) TCP 1 m 4M x10
Acer Aspire 5 A514-52-58U3
Intel Wi-Fi 6 AX201
1563 (1461min - 1779max) MBit/s ∼100% +87%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Wi-Fi 6 AX201
1484 (1342min - 1614max) MBit/s ∼95% +78%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel Wireless-AC 9560
1166 (1012min - 1299max) MBit/s ∼75% +40%
LG Gram 14T90N
Intel Wi-Fi 6 AX201
834 (342min - 945max) MBit/s ∼53%

Webcam

ColorChecker
7.4 ∆E
13.4 ∆E
14 ∆E
6.7 ∆E
12.1 ∆E
9.1 ∆E
13.1 ∆E
9.7 ∆E
9.6 ∆E
12.1 ∆E
10.8 ∆E
8.1 ∆E
8.9 ∆E
12.1 ∆E
6.5 ∆E
13 ∆E
8.8 ∆E
2 ∆E
16.4 ∆E
11.6 ∆E
9.9 ∆E
6.8 ∆E
6.1 ∆E
7.8 ∆E
ColorChecker LG Gram 14T90N: 9.84 ∆E min: 1.96 - max: 16.36 ∆E

Maintenance

The bottom panel is difficult to remove because all screws are hidden underneath rubber feet. The pads themselves are also difficult to remove without careful tools and a steady hand. Based on disassembly guides for the identical Gram 14T990, however, the Gram 14 T90N will be nearly exactly the same under the hood including the single SODIMM slot and two M.2 2280 bays.

Accessories and Warranty

In-the-box extras include an active stylus and a USB Type-C to RJ-45 adapter. LG could have sweetened the deal even more by throwing in a faux leather sleeve. The stylus is thinner than the Microsoft Surface Pen and so it can be difficult to grip for larger hands.

The standard one-year limited warranty applies

Input Devices

Keyboard

The keyboard remains identical to the 13.3-inch Gram 13 down to the size, layout, and feel. Feedback is satisfactory but weaker when compared to the keys on the HP Spectre 13 or XPS 13 7390 2-in-1. Clatter is minimal for a quiet typing experience. For future revisions, we would like to see larger Enter keys and Directional keys and dedicated auxiliary keys for the microphone, webcam, and volume control.

Touchpad

The Precision-enabled clickpad is actually slightly smaller than the clickpad on the Gram 14 clamshell (10.5 x 6.5 cm vs. 10.5 x 7 cm). Nonetheless, cursor movement is smooth, reliable and responsive with no jumping or input issues. There is some stickiness if moving at very slow speeds which is common on most clickpads.

Clicking on the trackpad surface is spongy with unsatisfying feedback. It takes a fair bit of force to input a single click meaning multiple clicks in succession can become tiring. 

Single-zone white backlight has two levels of illumination
Single-zone white backlight has two levels of illumination
Clickpad has spongy feedback with quiet clatter
Clickpad has spongy feedback with quiet clatter
You'll have to get used to the shallow key travel if you aren't already
You'll have to get used to the shallow key travel if you aren't already
Enter key is smaller than we are used to even for a subnotebook
Enter key is smaller than we are used to even for a subnotebook

Display

The LG Philips LP140WFA-SPY1 IPS panel on our unit can be found on no other laptop in our database. The LG LP140WFA panel series, however, appears on certain 14-inch Lenovo laptops like the IdeaPad S540 or IdeaPad S340. The high contrast ratio of ~1200:1 and glossy overlay help deliver a crisp and colorful picture as one would expect from any Ultrabook retailing for over a grand. Its biggest drawback is the slow black-white and gray-gray response times for more noticeable ghosting. This thankfully won't impact day-to-day office work or video playback all that much as super-fast response times are more applicable to gaming systems. With that said, certain 14-inch HP EliteBook systems offer 120 Hz screens for a much smoother visual experience than our LG.

Our unit suffers from light-moderate uneven backlight bleeding along the corners as shown by the picture below.

Glossy FHD touchscreen with no 4K UHD options
Glossy FHD touchscreen with no 4K UHD options
Unsurprisingly, the LG laptop uses an in-house LG IPS panel
Unsurprisingly, the LG laptop uses an in-house LG IPS panel
No webcam shutter
No webcam shutter
Narrow bezels
Narrow bezels
Crisp RGB subpixel array
Crisp RGB subpixel array
Moderate uneven light bleed along the bottom left corner
Moderate uneven light bleed along the bottom left corner
309.4
cd/m²
311.7
cd/m²
311.7
cd/m²
296.3
cd/m²
322.2
cd/m²
300
cd/m²
276.9
cd/m²
299.4
cd/m²
285.6
cd/m²
Distribution of brightness
LG Philips LP140WFA-SPY1
X-Rite i1Pro 2
Maximum: 322.2 cd/m² Average: 301.5 cd/m² Minimum: 21.36 cd/m²
Brightness Distribution: 86 %
Center on Battery: 322.2 cd/m²
Contrast: 1289:1 (Black: 0.25 cd/m²)
ΔE Color 3.62 | 0.6-29.43 Ø5.8, calibrated: 1.22
ΔE Greyscale 3.9 | 0.64-98 Ø6
95.6% sRGB (Argyll 3D) 61.3% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.43
LG Gram 14T90N
LG Philips LP140WFA-SPY1, IPS, 14, 1920x1080
LG Gram 14Z980-U.AAW5U1
LG Philips LP140WF7-SPG1, IPS, 14, 1920x1080
Asus ZenBook 14 UM431DA-AM020T
CEC PA LM140LF-3L03, IPS, 14, 1920x1080
Dell XPS 13 7390 2-in-1 Core i7
Sharp LQ134N1, IPS, 13.4, 1920x1200
Huawei Matebook X Pro i5
Tianma XM, IPS, 13.9, 3000x2000
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
BOE NV140QUM-N53, IPS, 14, 3840x2160
Response Times
21%
27%
12%
24%
6%
Response Time Grey 50% / Grey 80% *
54 (28.8, 25.2)
36.8 (19.6, 17.2)
32%
36 (19, 17)
33%
47.6 (23.2, 24.4)
12%
40.4 (19.2, 21.2)
25%
49.2 (22, 27.2)
9%
Response Time Black / White *
32.8 (19.6, 13.2)
30 (18.4, 11.6)
9%
26 (15, 11)
21%
29.2 (16, 13.2)
11%
25.6 (11.6, 14)
22%
32.2 (19.2, 13.2)
2%
PWM Frequency
44 (20)
2500 (25)
201.6 (99)
Screen
-17%
-49%
20%
-4%
-32%
Brightness middle
322.2
333.8
4%
253
-21%
549.8
71%
442.7
37%
532
65%
Brightness
301
307
2%
245
-19%
520
73%
428
42%
513
70%
Brightness Distribution
86
83
-3%
78
-9%
86
0%
84
-2%
90
5%
Black Level *
0.25
0.4
-60%
0.225
10%
0.39
-56%
0.31
-24%
0.41
-64%
Contrast
1289
835
-35%
1124
-13%
1410
9%
1428
11%
1298
1%
Colorchecker DeltaE2000 *
3.62
3.54
2%
8.89
-146%
2.12
41%
2.24
38%
6.88
-90%
Colorchecker DeltaE2000 max. *
6.9
5.8
16%
4.56
34%
3.66
47%
7.19
-4%
12.65
-83%
Colorchecker DeltaE2000 calibrated *
1.22
2.36
-93%
4.9
-302%
1.37
-12%
1.11
9%
2.52
-107%
Greyscale DeltaE2000 *
3.9
4.7
-21%
6.33
-62%
2.6
33%
9.7
-149%
10.5
-169%
Gamma
2.43 91%
2.14 103%
2.52 87%
2.3 96%
1.42 155%
1.98 111%
CCT
6344 102%
6261 104%
6745 96%
6884 94%
6227 104%
7394 88%
Color Space (Percent of AdobeRGB 1998)
61.3
61.2
0%
60
-2%
65.4
7%
61.6
0%
74.1
21%
Color Space (Percent of sRGB)
95.6
94.7
-1%
91
-5%
99.7
4%
95
-1%
99.7
4%
Total Average (Program / Settings)
2% / -11%
-11% / -37%
16% / 18%
10% / 0%
-13% / -26%

* ... smaller is better

Color space covers approximately 96 percent and 61 percent of the sRGB and AdobeRGB standards, respectively, which is common amongst high-end Ultrabooks. Laptops geared more towards content creators like the XPS 15 or ZenBook Pro 15 offer even deeper and more accurate colors.

vs. sRGB
vs. sRGB
vs. AdobeRGB
vs. AdobeRGB

Further measurements with an X-Rite colorimeter reveal poor RGB balance on an otherwise great display. After calibrating the panel ourselves, accuracy improves across the board. Final grayscale and color average DeltaE values sit at just 0.9 and 1.22, respectively. Users can apply our calibrated ICM profile above to get the most out of the display. Note that if LG Reader Mode is enabled, color temperature will become much warmer in order to reduce blue light emissions.

Grayscale before calibration
Grayscale before calibration
Saturation Sweeps before calibration
Saturation Sweeps before calibration
ColorChecker before calibration
ColorChecker before calibration
Grayscale after calibration
Grayscale after calibration
Saturation Sweeps after calibration
Saturation Sweeps after calibration
ColorChecker after calibration
ColorChecker after calibration

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
32.8 ms ... rise ↗ and fall ↘ combined↗ 19.6 ms rise
↘ 13.2 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 85 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (24.4 ms).
       Response Time 50% Grey to 80% Grey
54 ms ... rise ↗ and fall ↘ combined↗ 28.8 ms rise
↘ 25.2 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 636 (maximum) ms. » 88 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (38.7 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM not detected

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 17507 (minimum: 5 - maximum: 2500000) Hz was measured.

Outdoor visibility is poorer than expected especially for a convertible laptop where users are more likely to be traveling. The display is nowhere near as bright as the XPS 13 2-in-1 or Samsung Notebook 9 Pen and the glossy overlay only accentuates glare. Furthermore, users will have to disable certain settings or else the maximum brightness of the screen will automatically drop from 322 nits to about 277 nits if running on battery power. Viewing angles are otherwise excellent with no major changes to colors or contrast from practical angles.

Outdoors under sunlight
Outdoors under sunlight
Outdoors under shade
Outdoors under shade
Outdoors under sunlight
Outdoors under sunlight
Wide IPS viewing angles
Wide IPS viewing angles

Performance

The 10th gen Comet Lake-U Core i7-10510U directly replaces the 8th gen Whiskey Lake-U Core i7-8565U. As our benchmarks below will show, however, any performance differences between them are marginal. It's too bad that LG doesn't offer the Core i7-1065G7 Ice Lake or hexa-core Core i7-10710U which would have provided more significant performance advantages over the Core i7-8565U. Even an AMD Ryzen 3700U option would have offered faster graphics potential than the Core i7-10510U we have here.

Like all other Gram laptops thus far, there are no dedicated GPU options. The Gram 14 convertible is therefore more suited for light office, streaming, and web browsing rather than photo or media editing.

8 GB of RAM comes soldered alongside an expandable SODIMM slot. In our case, the slot is occupied by an 8 GB DDR4-2666 module from SK Hynix for a combined total of 16 GB.

LatencyMon shows DPC latency issues when opening multiple tabs, playing 4K video, and running Prime95 in sequence.

Processor

The CPUs in LG Gram laptops tend to perform slower than average. The Core i7-8565U in the Gram 17, for example, is 13 percent slower than the average Core i7-8565U taken from 50 other laptops. The Core i7-10510U in our Gram 14 is even worse at about 14 to 28 percent slower than the average Core i7-10510U. The wide margin means some Core i5-10210U laptops like the Lenovo Yoga C740-14IML can actually outperform the more expensive Gram 14. The Lenovo ThinkPad T490, which actually comes with the same i7-10510U CPU as our LG, is able to run 40 percent faster even after accounting for throttling.

See our dedicated page on the Core i7-10510U for more technical information and benchmark comparisons.

CineBench R15
CineBench R15
CineBench R20
CineBench R20
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520530540550560570580590600610620630640650660670680690Tooltip
LG Gram 14T90N UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ; CPU Multi 64Bit: Ø462 (454.02-529.49)
Lenovo IdeaPad S940-14IWL UHD Graphics 620, i7-8565U, Samsung SSD PM981 MZVLB512HAJQ; CPU Multi 64Bit: Ø437 (404.11-539.89)
Lenovo ThinkPad T490 20RY0002US UHD Graphics 620, i7-10510U, Sabrent Rocket Q 1TB RKT30Q.1; CPU Multi 64Bit: Ø650 (621.2-684.29)
Lenovo Yoga C740-14IML UHD Graphics 620, i5-10210U, Samsung SSD PM981a MZVLB256HBHQ; CPU Multi 64Bit: Ø550 (517.87-676.69)
Cinebench R20
CPU (Single Core)
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
465 Points ∼78% +22%
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
460 Points ∼78% +21%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel Core i7-10510U
447 Points ∼75% +18%
Dell Latitude 7400-8N6DH
Intel Core i7-8665U
445 Points ∼75% +17%
Asus ZenBook 15 UX534FT-DB77
Intel Core i7-8565U
444 Points ∼75% +17%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
439 Points ∼74% +16%
Average Intel Core i7-10510U
  (362 - 497, n=30)
433 Points ∼73% +14%
Dell G3 3590
Intel Core i5-9300H
422 Points ∼71% +11%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel Core i5-10210U
422 Points ∼71% +11%
LG Gram 14T90N
Intel Core i7-10510U
380 Points ∼64%
HP Elite Dragonfly-8MK79EA
Intel Core i5-8265U
370 Points ∼62% -3%
Dell Inspiron 15 5000 5585
AMD Ryzen 7 3700U
334 Points ∼56% -12%
CPU (Multi Core)
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
2410 Points ∼24% +120%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
2024 Points ∼20% +85%
Dell G3 3590
Intel Core i5-9300H
1864 Points ∼19% +70%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel Core i7-10510U
1654 Points ∼17% +51%
Asus ZenBook 15 UX534FT-DB77
Intel Core i7-8565U
1645 Points ∼16% +50%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
1630 Points ∼16% +49%
Dell Inspiron 15 5000 5585
AMD Ryzen 7 3700U
1499 Points ∼15% +37%
Dell Latitude 7400-8N6DH
Intel Core i7-8665U
1453 Points ∼15% +32%
Average Intel Core i7-10510U
  (1015 - 1897, n=31)
1405 Points ∼14% +28%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel Core i5-10210U
1204 Points ∼12% +10%
LG Gram 14T90N
Intel Core i7-10510U
1097 Points ∼11%
HP Elite Dragonfly-8MK79EA
Intel Core i5-8265U
1038 Points ∼10% -5%
Cinebench R15
CPU Single 64Bit
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel Core i7-10510U
182 Points ∼79% +12%
Dell Latitude 7400-8N6DH
Intel Core i7-8665U
181 Points ∼79% +12%
Asus ZenBook 15 UX534FT-DB77
Intel Core i7-8565U
181 Points ∼79% +12%
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
180 Points ∼78% +11%
Average Intel Core i7-10510U
  (113 - 202, n=35)
178 Points ∼77% +10%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
174 Points ∼76% +7%
Dell G3 3590
Intel Core i5-9300H
172 Points ∼75% +6%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
172 Points ∼75% +6%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel Core i5-10210U
164 Points ∼71% +1%
LG Gram 14T90N
Intel Core i7-10510U
162 Points ∼70%
HP Elite Dragonfly-8MK79EA
Intel Core i5-8265U
146 Points ∼63% -10%
LG Gram 14Z980-U.AAW5U1
Intel Core i5-8250U
143 Points ∼62% -12%
Dell Inspiron 15 5000 5585
AMD Ryzen 7 3700U
135 Points ∼59% -17%
Asus ZenBook 14 UM431DA-AM020T
AMD Ryzen 7 3700U
133 Points ∼58% -18%
CPU Multi 64Bit
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
1051 Points ∼24% +98%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
830 Points ∼19% +57%
Dell G3 3590
Intel Core i5-9300H
790 Points ∼18% +49%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel Core i7-10510U
776 Points ∼18% +46%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
736 Points ∼17% +39%
Asus ZenBook 15 UX534FT-DB77
Intel Core i7-8565U
683 Points ∼16% +29%
Dell Latitude 7400-8N6DH
Intel Core i7-8665U
674 Points ∼15% +27%
Dell Inspiron 15 5000 5585
AMD Ryzen 7 3700U
672 Points ∼15% +27%
Average Intel Core i7-10510U
  (482 - 856, n=38)
671 Points ∼15% +27%
Asus ZenBook 14 UM431DA-AM020T
AMD Ryzen 7 3700U
642 Points ∼15% +21%
LG Gram 14T90N
Intel Core i7-10510U
530 (445.08min - 507.45max) Points ∼12%
LG Gram 14Z980-U.AAW5U1
Intel Core i5-8250U
517 Points ∼12% -2%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel Core i5-10210U
515 Points ∼12% -3%
HP Elite Dragonfly-8MK79EA
Intel Core i5-8265U
496 (406.64min - 496.34max) Points ∼11% -6%
Cinebench R11.5
CPU Single 64Bit
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
2.18 Points ∼85%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
2.13 Points ∼83%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
2.05 Points ∼80%
Average Intel Core i7-10510U
 
1.95 Points ∼76%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel Core i5-10210U
1.9 Points ∼74%
Dell Inspiron 15 5000 5585
AMD Ryzen 7 3700U
1.52 Points ∼59%
CPU Multi 64Bit
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
11.81 Points ∼27%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
9.37 Points ∼21%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
7.94 Points ∼18%
Dell Inspiron 15 5000 5585
AMD Ryzen 7 3700U
7.56 Points ∼17%
Average Intel Core i7-10510U
 
6.69 Points ∼15%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel Core i5-10210U
5.69 Points ∼13%
Cinebench R10
Rendering Multiple CPUs 32Bit
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
31463 Points ∼48%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
26481 Points ∼41%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
23829 Points ∼36%
Dell Latitude 7400-8N6DH
Intel Core i7-8665U
20251 Points ∼31%
Average Intel Core i7-10510U
  (6763 - 26265, n=3)
19637 Points ∼30%
Rendering Single 32Bit
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
7345 Points ∼68%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
7260 Points ∼67%
Dell Latitude 7400-8N6DH
Intel Core i7-8665U
7028 Points ∼65%
Average Intel Core i7-10510U
  (5740 - 7748, n=3)
6919 Points ∼64%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
6855 Points ∼63%
wPrime 2.10 - 1024m
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Core i5-1035G7
264.974 s * ∼3%
Dell XPS 13 7390 2-in-1 Core i7
Intel Core i7-1065G7
232.895 s * ∼3%
Dell XPS 13 7390 Core i7-10710U
Intel Core i7-10710U
171.101 s * ∼2%

* ... smaller is better

Cinebench R15 CPU Multi 64Bit
530 Points
Cinebench R15 OpenGL 64Bit
48.2 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 CPU Single 64Bit
162 Points
Help

System Performance

PCMark benchmarks are where we expect them to be in spite of the below average CPU performance mentioned above. This means that day-to-day activities like browsing, multi-tasking or word processing will not feel any slower than your typical Ultrabook.

We experienced no software or hardware issues during our time with the test unit.

PCMark 10 Standard
PCMark 10 Standard
PCMark 8 Home Accelerated
PCMark 8 Home Accelerated
PCMark 8 Work Accelerated
PCMark 8 Work Accelerated
PCMark 10
Digital Content Creation
Dell XPS 13 7390 2-in-1 Core i7
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Toshiba BG4 KBG40ZPZ512G
3998 Points ∼31% +37%
Asus ZenBook 14 UM431DA-AM020T
Vega 10, R7 3700U, SK hynix BC501 HFM512GDHTNG-8310A
3466 Points ∼27% +19%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
UHD Graphics 620, i7-10510U, WDC PC SN730 SDBPNTY-512G
3251 Points ∼25% +11%
Average Intel Core i7-10510U, Intel UHD Graphics 620
  (2465 - 4741, n=16)
3239 Points ∼25% +11%
LG Gram 14T90N
UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ
2916 Points ∼23%
LG Gram 14Z980-U.AAW5U1
UHD Graphics 620, i5-8250U, SK Hynix SC313 HFS256G39TNF
2751 Points ∼21% -6%
Huawei Matebook X Pro i5
GeForce MX150, i5-8250U, Samsung PM961 MZVLW256HEHP
2735 Points ∼21% -6%
Productivity
LG Gram 14T90N
UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ
7280 Points ∼70%
Average Intel Core i7-10510U, Intel UHD Graphics 620
  (6554 - 8036, n=16)
7243 Points ∼70% -1%
Dell XPS 13 7390 2-in-1 Core i7
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Toshiba BG4 KBG40ZPZ512G
7179 Points ∼69% -1%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
UHD Graphics 620, i7-10510U, WDC PC SN730 SDBPNTY-512G
7051 Points ∼68% -3%
Asus ZenBook 14 UM431DA-AM020T
Vega 10, R7 3700U, SK hynix BC501 HFM512GDHTNG-8310A
5823 Points ∼56% -20%
LG Gram 14Z980-U.AAW5U1
UHD Graphics 620, i5-8250U, SK Hynix SC313 HFS256G39TNF
5749 Points ∼55% -21%
Huawei Matebook X Pro i5
GeForce MX150, i5-8250U, Samsung PM961 MZVLW256HEHP
5727 Points ∼55% -21%
Essentials
Dell XPS 13 7390 2-in-1 Core i7
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Toshiba BG4 KBG40ZPZ512G
9678 Points ∼84% +5%
Average Intel Core i7-10510U, Intel UHD Graphics 620
  (8020 - 10546, n=16)
9266 Points ∼81% 0%
LG Gram 14T90N
UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ
9253 Points ∼81%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
UHD Graphics 620, i7-10510U, WDC PC SN730 SDBPNTY-512G
8892 Points ∼78% -4%
Asus ZenBook 14 UM431DA-AM020T
Vega 10, R7 3700U, SK hynix BC501 HFM512GDHTNG-8310A
7685 Points ∼67% -17%
LG Gram 14Z980-U.AAW5U1
UHD Graphics 620, i5-8250U, SK Hynix SC313 HFS256G39TNF
7132 Points ∼62% -23%
Huawei Matebook X Pro i5
GeForce MX150, i5-8250U, Samsung PM961 MZVLW256HEHP
7083 Points ∼62% -23%
Score
Dell XPS 13 7390 2-in-1 Core i7
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Toshiba BG4 KBG40ZPZ512G
4677 Points ∼58% +12%
Average Intel Core i7-10510U, Intel UHD Graphics 620
  (3783 - 4688, n=16)
4299 Points ∼53% +3%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
UHD Graphics 620, i7-10510U, WDC PC SN730 SDBPNTY-512G
4219 Points ∼52% +1%
LG Gram 14T90N
UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ
4167 Points ∼51%
Asus ZenBook 14 UM431DA-AM020T
Vega 10, R7 3700U, SK hynix BC501 HFM512GDHTNG-8310A
3851 Points ∼47% -8%
LG Gram 14Z980-U.AAW5U1
UHD Graphics 620, i5-8250U, SK Hynix SC313 HFS256G39TNF
3463 Points ∼43% -17%
Huawei Matebook X Pro i5
GeForce MX150, i5-8250U, Samsung PM961 MZVLW256HEHP
3445 Points ∼42% -17%
PCMark 8
Work Score Accelerated v2
LG Gram 14T90N
UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ
5153 Points ∼76%
Dell XPS 13 7390 2-in-1 Core i7
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Toshiba BG4 KBG40ZPZ512G
5086 Points ∼75% -1%
Average Intel Core i7-10510U, Intel UHD Graphics 620
  (3734 - 5366, n=13)
4987 Points ∼73% -3%
Asus ZenBook 14 UM431DA-AM020T
Vega 10, R7 3700U, SK hynix BC501 HFM512GDHTNG-8310A
4842 Points ∼71% -6%
LG Gram 14Z980-U.AAW5U1
UHD Graphics 620, i5-8250U, SK Hynix SC313 HFS256G39TNF
4520 Points ∼66% -12%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
UHD Graphics 620, i7-10510U, WDC PC SN730 SDBPNTY-512G
4396 Points ∼64% -15%
Huawei Matebook X Pro i5
GeForce MX150, i5-8250U, Samsung PM961 MZVLW256HEHP
4339 Points ∼64% -16%
Home Score Accelerated v2
Dell XPS 13 7390 2-in-1 Core i7
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Toshiba BG4 KBG40ZPZ512G
3982 Points ∼65% +9%
LG Gram 14T90N
UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ
3646 Points ∼60%
Average Intel Core i7-10510U, Intel UHD Graphics 620
  (3157 - 4251, n=13)
3635 Points ∼60% 0%
Asus ZenBook 14 UM431DA-AM020T
Vega 10, R7 3700U, SK hynix BC501 HFM512GDHTNG-8310A
3604 Points ∼59% -1%
Huawei Matebook X Pro i5
GeForce MX150, i5-8250U, Samsung PM961 MZVLW256HEHP
3478 Points ∼57% -5%
LG Gram 14Z980-U.AAW5U1
UHD Graphics 620, i5-8250U, SK Hynix SC313 HFS256G39TNF
3218 Points ∼53% -12%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
UHD Graphics 620, i7-10510U, WDC PC SN730 SDBPNTY-512G
3182 Points ∼52% -13%
PCMark 8 Home Score Accelerated v2
3646 points
PCMark 8 Work Score Accelerated v2
5153 points
PCMark 10 Score
4167 points
Help

Storage Devices

There is only one internal storage bay to keep size and weight in check. Our retail unit comes equipped with a 512 GB Samsung PM981a PCIe SSD whereas our 2019 Gram 14 clamshell came with a slower drive from SK Hynix. There's no guarantee that all retail units will have Samsung SSDs as OEMs and resellers often have multiple suppliers. Consider yourself lucky if you get a Samsung drive as they are usually faster than those from Intel, SK Hynix or Toshiba.

See our table of HDDs and SSDs for more benchmark comparisons.

CDM 5.5
CDM 5.5
AS SSD
AS SSD
LG Gram 14T90N
Samsung SSD PM981a MZVLB512HBJQ
LG Gram 14Z980-U.AAW5U1
SK Hynix SC313 HFS256G39TNF
Asus ZenBook 14 UM431DA-AM020T
SK hynix BC501 HFM512GDHTNG-8310A
Dell XPS 13 7390 2-in-1 Core i7
Toshiba BG4 KBG40ZPZ512G
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
WDC PC SN730 SDBPNTY-512G
AS SSD
-63%
-32%
-76%
-21%
Copy Game MB/s
1424.73
520.7
-63%
926.53
-35%
1008.36
-29%
Copy Program MB/s
569.17
259.33
-54%
560.31
-2%
525.29
-8%
Copy ISO MB/s
1891.18
513.76
-73%
1292.6
-32%
1384.11
-27%
Score Total
4560
1040
-77%
2270
-50%
2583
-43%
2885
-37%
Score Write
1899
378
-80%
906
-52%
388
-80%
1224
-36%
Score Read
1749
431
-75%
918
-48%
1472
-16%
1110
-37%
Access Time Write *
0.091
0.055
40%
0.045
51%
0.625
-587%
0.074
19%
Access Time Read *
0.046
0.092
-100%
0.047
-2%
0.069
-50%
0.058
-26%
4K-64 Write
1573.42
263.12
-83%
747.86
-52%
208.96
-87%
949.77
-40%
4K-64 Read
1511.94
352.87
-77%
739.73
-51%
1252.59
-17%
885.4
-41%
4K Write
120.48
66.14
-45%
80.08
-34%
67.02
-44%
147.92
23%
4K Read
54.21
30.57
-44%
37.03
-32%
39.7
-27%
45.86
-15%
Seq Write
2048.14
487.41
-76%
781.17
-62%
1125.2
-45%
1258.8
-39%
Seq Read
1828.87
476.13
-74%
1417.21
-23%
1801.35
-2%
1786.24
-2%
CrystalDiskMark 5.2 / 6
-69%
-45%
-23%
-3%
Write 4K
181.4
74.66
-59%
118.8
-35%
106.7
-41%
151.5
-16%
Read 4K
52.5
14.89
-72%
41.62
-21%
49.94
-5%
45.83
-13%
Write Seq
1592
502
-68%
795.7
-50%
1223
-23%
2060
29%
Read Seq
1617
498.6
-69%
1101
-32%
1801
11%
1973
22%
Write 4K Q32T1
555.8
214.3
-61%
234.7
-58%
325.3
-41%
489.8
-12%
Read 4K Q32T1
539.1
225.5
-58%
313.8
-42%
550.5
2%
386.2
-28%
Write Seq Q32T1
2955
504.8
-83%
842.3
-71%
1224
-59%
2703
-9%
Read Seq Q32T1
3270
559.8
-83%
1645
-50%
2350
-28%
3376
3%
Total Average (Program / Settings)
-66% / -65%
-39% / -38%
-50% / -57%
-12% / -15%

* ... smaller is better

Samsung SSD PM981a MZVLB512HBJQ
CDM 5/6 Read Seq Q32T1: 3270 MB/s
CDM 5/6 Write Seq Q32T1: 2955 MB/s
CDM 5/6 Read 4K Q32T1: 539.1 MB/s
CDM 5/6 Write 4K Q32T1: 555.8 MB/s
CDM 5 Read Seq: 1617 MB/s
CDM 5 Write Seq: 1592 MB/s
CDM 5/6 Read 4K: 52.5 MB/s
CDM 5/6 Write 4K: 181.4 MB/s

GPU Performance

The integrated UHD Graphics 620 in our LG remains identical to the integrated GPU from the Whiskey Lake-U series. 3DMark benchmarks rank it where we expect it to be relative to other laptops with the same GPU. The Iris Plus G7 and the Radeon RX Vega 10 on Ice Lake laptops and Ryzen laptops, respectively, can each offer over two times the raw performance of the UHD Graphics 620. The system is otherwise sufficient for smooth 4K60 video playback.

See our dedicated page on the UHD Graphics 620 for more technical details and benchmark comparisons.

3DMark 11
3DMark 11
Ice Storm
Ice Storm
Ice Storm Unlimited
Ice Storm Unlimited
Cloud Gate
Cloud Gate
Fire Strike
Fire Strike
Time Spy
Time Spy
3DMark
2560x1440 Time Spy Graphics
Asus ZenBook 15 UX534FT-DB77
NVIDIA GeForce GTX 1650 Max-Q, i7-8565U
2836 Points ∼15% +656%
MSI Modern 14 A10RB-459US
NVIDIA GeForce MX250, i5-10210U
1164 Points ∼6% +210%
Asus ZenBook S13 UX392FN
NVIDIA GeForce MX150, i7-8565U
858 Points ∼5% +129%
Dell Inspiron 15 5000 5585
AMD Radeon RX Vega 10, R7 3700U
852 Points ∼5% +127%
Dell XPS 13 7390 2-in-1 Core i7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7
833 Points ∼4% +122%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i5-1035G7
794 Points ∼4% +112%
Dell XPS 13 7390 Core i7-10710U
Intel UHD Graphics 620, i7-10710U
425 Points ∼2% +13%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel UHD Graphics 620, i7-10510U
422 Points ∼2% +13%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel UHD Graphics 620, i5-10210U
412 Points ∼2% +10%
Dell Latitude 7400-8N6DH
Intel UHD Graphics 620, i7-8665U
391 Points ∼2% +4%
Acer Aspire 5 A514-52-58U3
Intel UHD Graphics 620, i5-10210U
386 Points ∼2% +3%
Average Intel UHD Graphics 620
  (299 - 443, n=75)
378 Points ∼2% +1%
LG Gram 14T90N
Intel UHD Graphics 620, i7-10510U
375 Points ∼2%
HP Elite Dragonfly-8MK79EA
Intel UHD Graphics 620, i5-8265U
365 Points ∼2% -3%
1920x1080 Fire Strike Graphics
Asus ZenBook 15 UX534FT-DB77
NVIDIA GeForce GTX 1650 Max-Q, i7-8565U
7593 Points ∼17% +557%
MSI Modern 14 A10RB-459US
NVIDIA GeForce MX250, i5-10210U
3845 Points ∼9% +233%
Dell XPS 13 7390 2-in-1 Core i7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7
3144 Points ∼7% +172%
Dell Inspiron 15 5000 5585
AMD Radeon RX Vega 10, R7 3700U
2999 Points ∼7% +160%
Asus ZenBook S13 UX392FN
NVIDIA GeForce MX150, i7-8565U
2851 Points ∼7% +147%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i5-1035G7
2692 Points ∼6% +133%
Asus ZenBook 14 UM431DA-AM020T
AMD Radeon RX Vega 10, R7 3700U
2272 Points ∼5% +97%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel UHD Graphics 620, i7-10510U
1343 Points ∼3% +16%
Dell XPS 13 7390 Core i7-10710U
Intel UHD Graphics 620, i7-10710U
1339 Points ∼3% +16%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel UHD Graphics 620, i5-10210U
1333 Points ∼3% +15%
Acer Aspire 5 A514-52-58U3
Intel UHD Graphics 620, i5-10210U
1237 Points ∼3% +7%
HP Elite Dragonfly-8MK79EA
Intel UHD Graphics 620, i5-8265U
1216 Points ∼3% +5%
LG Gram 14Z980-U.AAW5U1
Intel UHD Graphics 620, i5-8250U
1194 Points ∼3% +3%
Dell Latitude 7400-8N6DH
Intel UHD Graphics 620, i7-8665U
1173 Points ∼3% +2%
LG Gram 14T90N
Intel UHD Graphics 620, i7-10510U
1155 Points ∼3%
Average Intel UHD Graphics 620
  (557 - 1418, n=195)
1152 Points ∼3% 0%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel HD Graphics 515, 6Y30
735 Points ∼2% -36%
1280x720 Cloud Gate Standard Graphics
Asus ZenBook 15 UX534FT-DB77
NVIDIA GeForce GTX 1650 Max-Q, i7-8565U
46686 Points ∼24% +561%
MSI Modern 14 A10RB-459US
NVIDIA GeForce MX250, i5-10210U
23376 Points ∼12% +231%
Dell Inspiron 15 5000 5585
AMD Radeon RX Vega 10, R7 3700U
20784 Points ∼11% +194%
Dell XPS 13 7390 2-in-1 Core i7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7
18881 Points ∼10% +167%
Asus ZenBook S13 UX392FN
NVIDIA GeForce MX150, i7-8565U
18423 Points ∼9% +161%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i5-1035G7
16695 Points ∼9% +136%
Asus ZenBook 14 UM431DA-AM020T
AMD Radeon RX Vega 10, R7 3700U
16048 Points ∼8% +127%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel UHD Graphics 620, i5-10210U
10274 Points ∼5% +45%
Dell XPS 13 7390 Core i7-10710U
Intel UHD Graphics 620, i7-10710U
9882 Points ∼5% +40%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel UHD Graphics 620, i7-10510U
9846 Points ∼5% +39%
LG Gram 14Z980-U.AAW5U1
Intel UHD Graphics 620, i5-8250U
9643 Points ∼5% +36%
Acer Aspire 5 A514-52-58U3
Intel UHD Graphics 620, i5-10210U
9592 Points ∼5% +36%
Dell Latitude 7400-8N6DH
Intel UHD Graphics 620, i7-8665U
9354 Points ∼5% +32%
Average Intel UHD Graphics 620
  (6910 - 11436, n=207)
9227 Points ∼5% +31%
LG Gram 14T90N
Intel UHD Graphics 620, i7-10510U
7067 Points ∼4%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel HD Graphics 515, 6Y30
6078 Points ∼3% -14%
3DMark 11
1280x720 Performance Combined
Asus ZenBook 15 UX534FT-DB77
NVIDIA GeForce GTX 1650 Max-Q, i7-8565U
8563 Points ∼38% +442%
MSI Modern 14 A10RB-459US
NVIDIA GeForce MX250, i5-10210U
4596 Points ∼20% +191%
Dell XPS 13 7390 2-in-1 Core i7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7
4143 Points ∼18% +162%
Asus ZenBook S13 UX392FN
NVIDIA GeForce MX150, i7-8565U
3556 Points ∼16% +125%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i5-1035G7
3409 Points ∼15% +116%
Dell Inspiron 15 5000 5585
AMD Radeon RX Vega 10, R7 3700U
3247 Points ∼14% +106%
Asus ZenBook 14 UM431DA-AM020T
AMD Radeon RX Vega 10, R7 3700U
2447 Points ∼11% +55%
Dell XPS 13 7390 Core i7-10710U
Intel UHD Graphics 620, i7-10710U
2078 Points ∼9% +32%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel UHD Graphics 620, i7-10510U
1973 Points ∼9% +25%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel UHD Graphics 620, i5-10210U
1842 Points ∼8% +17%
Acer Aspire 5 A514-52-58U3
Intel UHD Graphics 620, i5-10210U
1696 Points ∼8% +7%
LG Gram 14T90N
Intel UHD Graphics 620, i7-10510U
1579 Points ∼7%
Average Intel UHD Graphics 620
  (959 - 2142, n=225)
1574 Points ∼7% 0%
LG Gram 14Z980-U.AAW5U1
Intel UHD Graphics 620, i5-8250U
1548 Points ∼7% -2%
HP Elite Dragonfly-8MK79EA
Intel UHD Graphics 620, i5-8265U
1546 Points ∼7% -2%
Dell Latitude 7400-8N6DH
Intel UHD Graphics 620, i7-8665U
1527 Points ∼7% -3%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel HD Graphics 515, 6Y30
1014 Points ∼4% -36%
1280x720 Performance GPU
Asus ZenBook 15 UX534FT-DB77
NVIDIA GeForce GTX 1650 Max-Q, i7-8565U
10761 Points ∼18% +519%
MSI Modern 14 A10RB-459US
NVIDIA GeForce MX250, i5-10210U
4920 Points ∼8% +183%
Dell XPS 13 7390 2-in-1 Core i7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7
4594 Points ∼8% +164%
Microsoft Surface Laptop 3 13 Core i5-1035G7
Intel Iris Plus Graphics G7 (Ice Lake 64 EU), i5-1035G7
4279 Points ∼7% +146%
Dell Inspiron 15 5000 5585
AMD Radeon RX Vega 10, R7 3700U
4165 Points ∼7% +140%
Asus ZenBook S13 UX392FN
NVIDIA GeForce MX150, i7-8565U
3540 Points ∼6% +104%
Asus ZenBook 14 UM431DA-AM020T
AMD Radeon RX Vega 10, R7 3700U
3389 Points ∼6% +95%
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
Intel UHD Graphics 620, i7-10510U
1977 Points ∼3% +14%
Dell XPS 13 7390 Core i7-10710U
Intel UHD Graphics 620, i7-10710U
1940 Points ∼3% +12%
Lenovo ThinkPad L13 Yoga 20R6S00800
Intel UHD Graphics 620, i5-10210U
1849 Points ∼3% +6%
Acer Aspire 5 A514-52-58U3
Intel UHD Graphics 620, i5-10210U
1822 Points ∼3% +5%
Dell Latitude 7400-8N6DH
Intel UHD Graphics 620, i7-8665U
1804 Points ∼3% +4%
HP Elite Dragonfly-8MK79EA
Intel UHD Graphics 620, i5-8265U
1789 Points ∼3% +3%
LG Gram 14Z980-U.AAW5U1
Intel UHD Graphics 620, i5-8250U
1757 Points ∼3% +1%
Average Intel UHD Graphics 620
  (1235 - 2006, n=225)
1743 Points ∼3% 0%
LG Gram 14T90N
Intel UHD Graphics 620, i7-10510U
1738 Points ∼3%
Apple MacBook 12 (Early 2016) 1.1 GHz
Intel HD Graphics 515, 6Y30
1186 Points ∼2% -32%
3DMark 11 Performance
1923 points
3DMark Ice Storm Standard Score
14669 points
3DMark Cloud Gate Standard Score
6582 points
3DMark Fire Strike Score
1056 points
3DMark Time Spy Score
429 points
Help
low med. high ultra
BioShock Infinite (2013) 59.8 38.4 32 10.2 fps
Dota 2 Reborn (2015) 57.6 39.1 19 17 fps
X-Plane 11.11 (2018) 20.5 13.2 12 fps

Emissions

System Noise

The system fan will idle during low to low-medium loads when running on batteries for a silent typing experience. Otherwise, fan noise will be at 30 dB(A) against a background of 29 dB(A) when connected to an outlet. Higher loads like gaming will induce a fan noise between 35 dB(A) and 37 dB(A) which is quieter than many Ultrabooks. Perhaps a louder maximum RPM would have allowed for faster sustained CPU clock rates than what we recorded above.

We can notice no electronic noise or coil whine from our test unit.

LG Gram 14T90N
UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ
LG Gram 14Z980-U.AAW5U1
UHD Graphics 620, i5-8250U, SK Hynix SC313 HFS256G39TNF
Asus ZenBook 14 UM431DA-AM020T
Vega 10, R7 3700U, SK hynix BC501 HFM512GDHTNG-8310A
Dell XPS 13 7390 2-in-1 Core i7
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Toshiba BG4 KBG40ZPZ512G
Huawei Matebook X Pro i5
GeForce MX150, i5-8250U, Samsung PM961 MZVLW256HEHP
Lenovo Yoga C940-14IIL 81Q9
Iris Plus Graphics G7 (Ice Lake 64 EU), i7-1065G7, Samsung PM981a MZVLB1T0HBLR
Noise
4%
1%
2%
0%
2%
off / environment *
29
28.2
3%
29.8
-3%
28.1
3%
27.9
4%
28.5
2%
Idle Minimum *
30
28.4
5%
28
7%
28.1
6%
27.9
7%
28.5
5%
Idle Average *
30
28.4
5%
28
7%
28.1
6%
27.9
7%
28.5
5%
Idle Maximum *
30
28.4
5%
28
7%
28.1
6%
27.9
7%
29
3%
Load Average *
35.2
35.7
-1%
36.8
-5%
31.7
10%
36.2
-3%
33
6%
Load Maximum *
37
34.2
8%
39
-5%
43.4
-17%
45.2
-22%
39.5
-7%
Witcher 3 ultra *
43.4
45
40.7

* ... smaller is better

Noise Level

Idle
30 / 30 / 30 dB(A)
Load
35.2 / 37 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   BK Precision 732A (15 cm distance)   environment noise: 29 dB(A)

Temperature

Surface temperatures range from 25 C to 29 C when idling on desktop. If under extreme loads, hot spots near the keyboard center can reach as warm as 43 C which is not unlike what we recorded on the Asus ZenBook 14 or Lenovo Yoga C940-14 when under similar conditions. These alternatives, however, offer much faster graphics performance than our LG Gram without running any warmer.

Rear exhaust
Rear exhaust
AC adapter after running Prime95 for an hour
AC adapter after running Prime95 for an hour
Max. Load
 37.8 °C
100 F
43.2 °C
110 F
32.2 °C
90 F
 
 34.6 °C
94 F
39.8 °C
104 F
29.8 °C
86 F
 
 30 °C
86 F
29.4 °C
85 F
28.8 °C
84 F
 
Maximum: 43.2 °C = 110 F
Average: 34 °C = 93 F
30.4 °C
87 F
41.6 °C
107 F
36.6 °C
98 F
29.2 °C
85 F
37.8 °C
100 F
33.8 °C
93 F
28.4 °C
83 F
30 °C
86 F
30.6 °C
87 F
Maximum: 41.6 °C = 107 F
Average: 33.2 °C = 92 F
Power Supply (max.)  46 °C = 115 F | Room Temperature 20.6 °C = 69 F | Fluke 62 Mini IR Thermometer
(±) The average temperature for the upper side under maximal load is 34 °C / 93 F, compared to the average of 30.3 °C / 87 F for the devices in the class Convertible.
(±) The maximum temperature on the upper side is 43.2 °C / 110 F, compared to the average of 35.3 °C / 96 F, ranging from 21.8 to 55.7 °C for the class Convertible.
(±) The bottom heats up to a maximum of 41.6 °C / 107 F, compared to the average of 36.5 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 26.7 °C / 80 F, compared to the device average of 30.3 °C / 87 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 30 °C / 86 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.9 °C / 84 F (-1.1 °C / -2 F).
System idle (top)
System idle (top)
System idle (bottom)
System idle (bottom)
Maximum stress (top)
Maximum stress (top)
Maximum stress (bottom)
Maximum stress (bottom)

Stress Test

We stress the laptop with synthetic loads to identify for any potential throttling or stability issues. When running Prime95, the CPU can be observed boosting up to 3.2 GHz for the first few seconds until hitting a core a temperature of 87 C. Thereafter, clock rates drop like a rock to a stable 1.9 GHz in order to maintain a core temperature of 75 C. Since the base clock rate of the Core i7-10510U is 1.8 GHz, this suggests that the laptop is wholly incapable of maintaining high Turbo Boost frequencies for anything longer than just a few seconds. The finding corroborates with our CineBench loop test above and our power consumption measurements below.

Performance will not be reduced if running on battery power. A 3DMark 11 test on batteries returns Physics and Graphics scores of 6475 and 1836 points, respectively, compared to 5968 and 1738 points when on mains.

System idle
System idle
Prime95+FurMark stress
Prime95+FurMark stress
Prime95 stress (first few minutes)
Prime95 stress (first few minutes)
Prime95 stress (after ~10 minutes)
Prime95 stress (after ~10 minutes)
CPU Clock (GHz) GPU Clock (MHz) Average CPU Temperature (°C)
System Idle -- -- 44
Prime95 Stress 1.9 -- 75
Prime95 + FurMark Stress 0.8 648 79

Speakers

The 1.5 W stereo speakers offer poor bass reproduction as one might expect from a subnotebook. Maximum volume is otherwise about the same as the Dell XPS 13 2-in-1 or HP Spectre to be sufficient enough for small conference rooms. Music and movie playback would be best with a pair of headphones. Higher volume settings will not introduce any static or noticeable surface vibrations.

Bottom-firing speakers near front corners
Bottom-firing speakers near front corners
Pink noise at maximum volume
Pink noise at maximum volume

Energy Management

Power Consumption

Idling on desktop demands between 3 W to 7 W which is quite close to what we recorded on the Gram 14 clamshell. Expect consumption to jump to 31 W to 38 W if running very demanding loads like gaming.

Interestingly, the maximum power consumption of the Gram 14 convertible is much higher than the maximum power consumption of the older Gram 14 clamshell equipped with a Kaby Lake-R CPU (48 W vs 35 W). This is likely due to the higher Turbo Boost potential of Comet Lake-U than Kaby Lake-R even though both are under the same 15 W TDP.

The maximum consumption of 48 W is the exact rating of the small (~9.8 x 6 x 2.7 cm) 48 W AC adapter. However, this high of a consumption rate is unsustainable over long periods as shown by our graphs below.

Power consumption during the first benchmark scene of 3DMark 06
Power consumption during the first benchmark scene of 3DMark 06
Prime95 initiated at 10s mark. Consumption spikes to 48.7 W for about 18 seconds before falling and stabilizing at 30.3 W
Prime95 initiated at 10s mark. Consumption spikes to 48.7 W for about 18 seconds before falling and stabilizing at 30.3 W
Power Consumption
Off / Standbydarklight 0.31 / 0.48 Watt
Idledarkmidlight 2.9 / 5.8 / 6.2 Watt
Load midlight 32.9 / 48.5 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
LG Gram 14T90N
i7-10510U, UHD Graphics 620, Samsung SSD PM981a MZVLB512HBJQ, IPS, 1920x1080, 14
LG Gram 14Z980-U.AAW5U1
i5-8250U, UHD Graphics 620, SK Hynix SC313 HFS256G39TNF, IPS, 1920x1080, 14
Asus ZenBook 14 UM431DA-AM020T
R7 3700U, Vega 10, SK hynix BC501 HFM512GDHTNG-8310A, IPS, 1920x1080, 14
Dell XPS 13 7390 2-in-1 Core i7
i7-1065G7, Iris Plus Graphics G7 (Ice Lake 64 EU), Toshiba BG4 KBG40ZPZ512G, IPS, 1920x1200, 13.4
Huawei Matebook X Pro i5
i5-8250U, GeForce MX150, Samsung PM961 MZVLW256HEHP, IPS, 3000x2000, 13.9
Lenovo Yoga C940-14IIL 81Q9
i7-1065G7, Iris Plus Graphics G7 (Ice Lake 64 EU), Samsung PM981a MZVLB1T0HBLR, IPS, 3840x2160, 14
Power Consumption
5%
-26%
-5%
-49%
-73%
Idle Minimum *
2.9
2.7
7%
3.6
-24%
2.6
10%
3.5
-21%
5.6
-93%
Idle Average *
5.8
6
-3%
7.2
-24%
5.3
9%
8.9
-53%
10.5
-81%
Idle Maximum *
6.2
6.5
-5%
10.8
-74%
7
-13%
12.3
-98%
12
-94%
Load Average *
32.9
32.5
1%
38
-16%
43.1
-31%
54.2
-65%
53.3
-62%
Load Maximum *
48.5
35.5
27%
45.2
7%
49
-1%
52.1
-7%
64.6
-33%
Witcher 3 ultra *
43.1
42.4
46.9

* ... smaller is better

Battery Life

Perhaps not coincidentally, battery life results are nearly identical to what we recorded on the Gram 14 clamshell. Expect over 12 hours of real-world WLAN use to be above average for its subnotebook category. The long runtimes can be attributed to the internal 72 Wh battery which is quite large for a 14-inch convertible.

Charging from empty to full capacity takes about 2 hours. It is possible to recharge via USB Type-C, but you may need to enable the feature first by launching the pre-installed LG Command Center software.

Battery Runtime
Idle (without WLAN, min brightness)
32h 46min
NBC WiFi Websurfing Battery Test 1.3
12h 31min
Load (maximum brightness)
2h 33min
LG Gram 14T90N
i7-10510U, UHD Graphics 620, 72 Wh
LG Gram 14Z980-U.AAW5U1
i5-8250U, UHD Graphics 620, 72 Wh
Asus ZenBook 14 UM431DA-AM020T
R7 3700U, Vega 10, 47 Wh
Dell XPS 13 7390 2-in-1 Core i7
i7-1065G7, Iris Plus Graphics G7 (Ice Lake 64 EU), 51 Wh
Huawei Matebook X Pro i5
i5-8250U, GeForce MX150, 57.4 Wh
Lenovo ThinkPad X1 Carbon G7 20R1-000YUS
i7-10510U, UHD Graphics 620, 51 Wh
Battery Runtime
5%
-37%
-28%
-25%
-20%
Reader / Idle
1966
2238
14%
1068
-46%
1243
-37%
WiFi v1.3
751
720
-4%
404
-46%
537
-28%
557
-26%
598
-20%
Load
153
159
4%
125
-18%
133
-13%

Pros

+ two M.2 2280 storage bays; expandable RAM
+ essentially silent during low-medium loads
+ support for USB Type-C charging
+ very lightweight for the size
+ included active stylus
+ long battery life
+ MicroSD reader
+ quiet fan noise
+ Thunderbolt 3

Cons

- no RX Vega, Iris, or GeForce GPU options
- outdoor visibility could be better
- small Enter and Directional keys
- disappointing CPU performance
- speakers could be louder
- spongy clickpad keys
- difficult serviceability
- no webcam shutter
- no IR camera
- expensive

Verdict

In review: LG Gram 14T90N
In review: LG Gram 14T90N

The difference between the older LG Gram14T990 and newer LG Gram 14T90N is marginal at best. The processor update is barely noticeable which leaves Thunderbolt 3 as the main distinguishing factor between the two models. If you plan on utilizing Thunderbolt 3-based devices like docking stations and external monitors, then you'll find value in the Gram 14T90N. Otherwise, save yourself a few hundred dollars and just go with the Gram14T990 instead.

There are a few notable advantages that the LG convertible has over competitors. The low weight makes it easier to use in tablet mode than say the ZenBook 14 Flip and the dual internal storage bays are a rarity considering the category. Even so, the system feels under-powered for the price especially in terms of graphics potential while common privacy features like a webcam shutter or IR camera are not present. Perhaps a Core i7 Ice Lake CPU would have worked better considering the target audience. The display could have also been brighter for more comfortable outdoor visibility.

The Gram 14T90N is a $1400 convertible with an under-performing CPU and nothing else special. You'll have to make use of its light weight, long battery life, and Thunderbolt 3 port to get the most out of the system.

LG Gram 14T90N - 04/06/2020 v7
Allen Ngo

Chassis
70 / 98 → 71%
Keyboard
69%
Pointing Device
76%
Connectivity
64 / 75 → 86%
Weight
73 / 20-75 → 97%
Battery
89%
Display
81%
Games Performance
51 / 78 → 65%
Application Performance
87 / 85 → 100%
Temperature
91%
Noise
93%
Audio
72 / 91 → 79%
Camera
43 / 85 → 51%
Average
74%
81%
Convertible - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > LG Gram 14T90N Convertible Review: A CPU Downgrade
Allen Ngo, 2020-04- 6 (Update: 2020-04- 6)
Allen Ngo
Allen Ngo - US Editor in Chief
After graduating with a B.S. in environmental hydrodynamics from the University of California, I studied reactor physics to become licensed by the U.S. NRC to operate nuclear reactors. There's a striking level of appreciation you gain for everyday consumer electronics after working with modern nuclear reactivity systems astonishingly powered by computers from the 80s. When I'm not managing day-to-day activities and US review articles on Notebookcheck, you can catch me following the eSports scene and the latest gaming news.