LG Gram 14T90P convertible review: The Lenovo Yoga and HP Spectre challenger
The 16:10 LG Gram 14T90P succeeds the older generation 16:9 Gram 14T90N by introducing faster Intel 11th gen processor options and a new chassis design to be a full-fledged series refresh. Much like all the other Gram models, the Gram 14T90P aims to maximize display quality while minimizing weight to be one of the lightest Core U-series laptops for its size category.
Our unit in review has been configured with the Core i5-1135G7 CPU, 16 GB of soldered RAM, 512 GB NVMe SSD, and a 14-inch 1200p IPS touchscreen for approximately $1000 to $1100 USD retail. Other SKUs are available with the Core i7-1165G7 instead, but all come with the same 1200p panel.
Direct competitors in this space include other high-end subnotebook convertibles like the Asus Zenbook Flip 14, HP Spectre x360 14, Dell XPS 13 2-in-1, MSI Summit E13 Flip, or Lenovo Yoga 9 14.
More LG reviews:
Potential Competitors in Comparison
Rating | Date | Model | Weight | Height | Size | Resolution | Best Price |
---|---|---|---|---|---|---|---|
87.5 % | 05/2022 | LG Gram 14T90P i5-1135G7, Iris Xe G7 80EUs | 1.2 kg | 17 mm | 14.00" | 1900x1200 | |
86.7 % | 10/2021 | Dell XPS 13 9310 2-in-1 i7-1165G7, Iris Xe G7 96EUs | 1.3 kg | 14.35 mm | 13.40" | 1920x1200 | |
89.8 % | 05/2022 | Lenovo Yoga 9 14IAP7 82LU0001US i7-1260P, Iris Xe G7 96EUs | 1.4 kg | 15.25 mm | 14.00" | 2880x1800 | |
86.5 % | 05/2022 | Asus ZenBook Flip 14 UN5401QA-KN085W R7 5800H, Vega 8 | 1.4 kg | 15.9 mm | 14.00" | 2880x1800 | |
89.5 % | 05/2021 | HP Spectre x360 14-ea0378ng i7-1165G7, Iris Xe G7 96EUs | 1.3 kg | 16.9 mm | 13.50" | 3000x2000 | |
86.9 % | 04/2021 | MSI Summit E13 Flip Evo A11MT i7-1185G7, Iris Xe G7 96EUs | 1.4 kg | 14.9 mm | 13.40" | 1920x1200 |
Case — Significantly Upgraded From The Older Design
The chassis design is essentially a miniaturized version of the recent 16-inch Gram 16T90P. It may not be as visually striking the Dell XPS, HP Spectre, or Asus Zenbook series, but it makes up for this by being both lighter and certified under MIL-STD 810G specifications. Its base and lid are also firmer than on the older Gram 14T90N with minimal twisting and no creaking to be less prone to flexing or damage than with the Samsung Galaxy Book Pro 360 series.
Dimensions are slightly different than on the preceding Gram 14T90N, but overall volume and weight are nearly the same. Thus, users are getting a larger 16:10 touchscreen without necessitating a larger or heavier chassis. The system is about 100 g to 200 g lighter than most competing convertibles as well which is noticeable when handling or traveling.
Connectivity — 2x Thunderbolt 4
Port options are identical to the larger Gram 16T90P. The Gram 14T90P has dropped the HDMI port and Kensington lock slot as found on the Gram 14Z90P or Gram 14T90N while offering fewer options than the 14Z90P. There is just one full-size USB-A port instead of two, for example, meaning owners are encouraged to utilize USB-C accessories or docking stations instead.
Pressing the button along the right edge turns the display on or off. It's a strange feature that we don't see on many other convertibles and it's unfortunately not user customizable.
SD Card Reader
Transfer rates from the spring-loaded MicroSD card reader are average at around 85 MB/s. Moving 1 GB of pictures from our UHS-II card to desktop takes about 15 seconds to be similar to all other Gram models thus far.
SD Card Reader | |
average JPG Copy Test (av. of 3 runs) | |
HP Spectre x360 14-ea0378ng (Toshiba Exceria Pro M501 microSDXC 64GB) | |
Dell XPS 13 9310 2-in-1 (AV Pro V60) | |
Asus ZenBook Flip 14 UN5401QA-KN085W (AV Pro SD microSD 128 GB V60) | |
LG Gram 14T90N (Toshiba Exceria Pro M501 64 GB UHS-II) | |
MSI Summit E13 Flip Evo A11MT (AV PRO microSD 128 GB V60) | |
LG Gram 14T90P (AV Pro V60) | |
maximum AS SSD Seq Read Test (1GB) | |
HP Spectre x360 14-ea0378ng (Toshiba Exceria Pro M501 microSDXC 64GB) | |
Dell XPS 13 9310 2-in-1 (AV Pro V60) | |
Asus ZenBook Flip 14 UN5401QA-KN085W (AV Pro SD microSD 128 GB V60) | |
LG Gram 14T90P (AV Pro V60) | |
MSI Summit E13 Flip Evo A11MT (AV PRO microSD 128 GB V60) | |
LG Gram 14T90N (Toshiba Exceria Pro M501 64 GB UHS-II) |
Communication
An Intel AX201 comes standard for Wi-Fi 6 and Bluetooth 5.2 support. We experienced no connectivity issues when paired to our Asus GT-AXE11000 unlike what we observed on the recent Asus Zenbook Pro 15.
Networking | |
iperf3 transmit AX12 | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
Dell XPS 13 9310 2-in-1 | |
HP Spectre x360 14-ea0378ng | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90N | |
iperf3 receive AX12 | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Dell XPS 13 9310 2-in-1 | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90N | |
HP Spectre x360 14-ea0378ng | |
iperf3 receive AXE11000 | |
LG Gram 14T90P | |
iperf3 transmit AXE11000 | |
LG Gram 14T90P |
Webcam
The camera is only 720p with no support for Windows Hello or even a privacy shutter. This definitely needs addressing on future models.
Maintenance
Much like with every other Gram laptop thus far, the bottom panel was designed to be very difficult to open as screws are hidden underneath stickers and rubber feet. It's a shame because the system can support up to two internal M.2 2280 SSDs instead of one for additional storage space, but LG has made it annoyingly difficult for owners to add their own drives.
Both RAM and WLAN are soldered and not user-upgradeable.
Since we were unable to open our test unit without damaging it, we can refer to the official FCC images here.
Accessories and Warranty
The retail box includes a Wacom active stylus pen alongside the usual paperwork and AC adapter. The standard one-year limited warranty applies.
Input Devices — Great Keyboard, Meh Clickpad
Keyboard
Feedback from the keyboard keys is noticeably firmer and less spongy than on most other Ultrabooks. If you're used to typing on softer keyboard keys like on an Asus Vivobook, HP Pavilion, Lenovo IdeaPad, or even the Razer Blade, then you'll be in for a surprise at how much stiffer the keys are on the Gram 14T90P. A consequence of the firmer keys, however, is louder-than-average clatter for a slightly noisier typing experience.
Touchpad
We're less impressed by the clickpad when compared to the keyboard. Though it's larger than the clickpad on the Gram 14T90N (11.3 x 7 cm vs. 10.5 x 6.5 cm) for easier cursor control and multi-touch inputs, feedback from clicking is too soft and quiet. Firmer feedback would have made for a more satisfying feel.
Display — Sharp With Excellent Colors
The LG Gram 14T90P uses the same high quality LG Philips LP140WU1-SPA1 IPS panel as found on the Gram 14Z90P. Thus, attributes such as color reproduction, response times, and contrast are pretty much equal between them for a very similar viewing experience.
When compared to the display on the Gram 14T90N, our Gram 14T90P offers deeper colors and slightly faster black-white and gray-gray response times without impacting brightness or contrast. Even so, we'd love to see OLED and/or 90 Hz panels in the future as such features are becoming the norm on high-end subnotebooks like on the competing Asus Zenbook Flip 14.
|
Brightness Distribution: 87 %
Center on Battery: 305.5 cd/m²
Contrast: 1131:1 (Black: 0.27 cd/m²)
ΔE Color 3.31 | 0.5-29.43 Ø5
ΔE Greyscale 1.9 | 0.57-98 Ø5.3
100% sRGB (Argyll 2.2.0 3D)
98.8% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.04
LG Gram 14T90P LG Philips LP140WU1-SPA1, IPS, 1900x1200, 14.00 | Dell XPS 13 9310 2-in-1 Sharp LQ134N1, IPS, 1920x1200, 13.40 | Lenovo Yoga 9 14IAP7 82LU0001US Lenovo LEN140WQ+, OLED, 2880x1800, 14.00 | Asus ZenBook Flip 14 UN5401QA-KN085W SDC4154, OLED, 2880x1800, 14.00 | HP Spectre x360 14-ea0378ng Samsung SDC4148, OLED, 3000x2000, 13.50 | MSI Summit E13 Flip Evo A11MT Sharp LQ134N1JW53, IPS, 1920x1200, 13.40 | LG Gram 14T90N LG Philips LP140WFA-SPY1, IPS, 1920x1080, 14.00 | |
---|---|---|---|---|---|---|---|
Display | -15% | 1% | 1% | 1% | -15% | -19% | |
Display P3 Coverage | 98.8 | 69.7 -29% | 99.8 1% | 99.7 1% | 99.9 1% | 69.8 -29% | 65 -34% |
sRGB Coverage | 100 | 99 -1% | 100 0% | 100 0% | 100 0% | 98.8 -1% | 95.7 -4% |
AdobeRGB 1998 Coverage | 71.7 | 98.7 | 98.6 | 96.1 | 70.6 | 66.7 | |
Response Times | -31% | 97% | 94% | 94% | -46% | -16% | |
Response Time Grey 50% / Grey 80% * | 44 ? | 55.6 ? -26% | 1.2 ? 97% | 2 ? 95% | 2 ? 95% | 64 ? -45% | 54 ? -23% |
Response Time Black / White * | 30 ? | 40.4 ? -35% | 1.2 ? 96% | 2 ? 93% | 2 ? 93% | 44 ? -47% | 32.8 ? -9% |
PWM Frequency | 2500 ? | 347.2 ? | 250 ? | ||||
Screen | -16% | -13% | 11% | 419% | 38% | -12% | |
Brightness middle | 305.5 | 555.7 82% | 367.3 20% | 366 20% | 370 21% | 551.3 80% | 322.2 5% |
Brightness | 289 | 528 83% | 369 28% | 369 28% | 374 29% | 517 79% | 301 4% |
Brightness Distribution | 87 | 90 3% | 97 11% | 96 10% | 90 3% | 91 5% | 86 -1% |
Black Level * | 0.27 | 0.35 -30% | 0.01 96% | 0.37 -37% | 0.25 7% | ||
Contrast | 1131 | 1588 40% | 37000 3171% | 1490 32% | 1289 14% | ||
Colorchecker dE 2000 * | 3.31 | 4.83 -46% | 5.2 -57% | 2.84 14% | 2.57 22% | 1.45 56% | 3.62 -9% |
Colorchecker dE 2000 max. * | 6.12 | 8.46 -38% | 8.04 -31% | 5.29 14% | 4.52 26% | 2.86 53% | 6.9 -13% |
Greyscale dE 2000 * | 1.9 | 6.1 -221% | 2.8 -47% | 2.32 -22% | 2.2 -16% | 1.3 32% | 3.9 -105% |
Gamma | 2.04 108% | 1.98 111% | 2.21 100% | 2.44 90% | 2.36 93% | 2.14 103% | 2.43 91% |
CCT | 6706 97% | 6686 97% | 5992 108% | 6170 105% | 6154 106% | 6580 99% | 6344 102% |
Colorchecker dE 2000 calibrated * | 0.76 | 2.81 | 2.31 | 1.7 | 1.22 | ||
Color Space (Percent of AdobeRGB 1998) | 85.8 | 65 | 61.3 | ||||
Color Space (Percent of sRGB) | 100 | 99 | 95.6 | ||||
Total Average (Program / Settings) | -21% /
-18% | 28% /
12% | 35% /
25% | 171% /
295% | -8% /
15% | -16% /
-14% |
* ... smaller is better
LG advertises 99 percent DCI-P3 coverage and we can confirm as much with our own X-Rite colorimeter. Calculating AdobeRGB results in an error strangely enough, but coverage should nonetheless be very similar at ~99 percent. This is one of the few 14-inch 16:10 IPS panels to offer a similar gamut to most OLED panels.
The display is decently calibrated out of the box. Average grayscale and ColorChecker DeltaE values would sit at just 1.9 and 3.31, respectively.
Display Response Times
↔ Response Time Black to White | ||
---|---|---|
30 ms ... rise ↗ and fall ↘ combined | ↗ 15.2 ms rise | |
↘ 14.8 ms fall | ||
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 77 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (21.5 ms). | ||
↔ Response Time 50% Grey to 80% Grey | ||
44 ms ... rise ↗ and fall ↘ combined | ↗ 21.2 ms rise | |
↘ 22.8 ms fall | ||
The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.2 (minimum) to 636 (maximum) ms. » 70 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (33.7 ms). |
Screen Flickering / PWM (Pulse-Width Modulation)
Screen flickering / PWM not detected | |||
In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 17900 (minimum: 5 - maximum: 3846000) Hz was measured. |
At 300 nits, the display is bright enough for indoor conditions but not nearly where it needs to be for comfortable viewing outdoors. Alternatives like the Dell XPS 13 9310 2-in-1 or MSI Summit E13 Flip have much brighter displays at over 500 nits each to be more easily viewable outdoors.
Performance — 11th Gen Intel
Testing Conditions
Our unit was set to Performance mode prior to running any performance benchmarks for the highest possible scores. It's highly recommend to become familiar with the pre-installed LG Control Center software as key settings and features are toggled here as shown by the screenshots below. Annoyingly, the software UI is very small and it cannot be maximized.
Note that the system will automatically reset to Balanced mode after every reboot or shut down even if the power profile was set to Silent or Performance beforehand.
Processor
CPU performance is within a few percentage points of the average laptop in our database equipped with the same Core i5-1135G7 processor. Thus, performance isn't being throttled by too much just to fit onto an ultralight convertible chassis design. Upgrading to the Core i7-1165G7 SKU has the potential to boost multi-thread performance by up to 25 percent, but it will likely be much less as the Core i5 in our configuration can already reach temperatures of over 90 C.
Turbo Boost sustainability is good but not perfect. When running CineBench R15 xT in a loop, our initial score of 796 points would eventually fall and stabilize at about 666 points to represent a performance drop of 16 percent over time due to thermal limitations. Both the Dell Latitude 14 and Acer Swift 3 SF314 are able to run the same processor consistently faster as shown by our comparison graph below.
Cinebench R15 Multi Loop
Cinebench R23: Multi Core | Single Core
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.5: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
Cinebench R23: Multi Core | Single Core
Cinebench R15: CPU Multi 64Bit | CPU Single 64Bit
Blender: v2.79 BMW27 CPU
7-Zip 18.03: 7z b 4 | 7z b 4 -mmt1
Geekbench 5.5: Multi-Core | Single-Core
HWBOT x265 Benchmark v2.2: 4k Preset
LibreOffice : 20 Documents To PDF
R Benchmark 2.5: Overall mean
* ... smaller is better
AIDA64: FP32 Ray-Trace | FPU Julia | CPU SHA3 | CPU Queen | FPU SinJulia | FPU Mandel | CPU AES | CPU ZLib | FP64 Ray-Trace | CPU PhotoWorxx
Performance Rating | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
Average Intel Core i5-1135G7 | |
HP Spectre x360 14-ea0378ng |
AIDA64 / FP32 Ray-Trace | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
Average Intel Core i5-1135G7 (4313 - 7952, n=45) | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
HP Spectre x360 14-ea0378ng |
AIDA64 / FPU Julia | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
MSI Summit E13 Flip Evo A11MT | |
Dell XPS 13 9310 2-in-1 | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7 (19402 - 32283, n=45) | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
HP Spectre x360 14-ea0378ng |
AIDA64 / CPU SHA3 | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
MSI Summit E13 Flip Evo A11MT | |
Dell XPS 13 9310 2-in-1 | |
LG Gram 14T90P | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
Average Intel Core i5-1135G7 (1316 - 2172, n=45) | |
HP Spectre x360 14-ea0378ng |
AIDA64 / CPU Queen | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
MSI Summit E13 Flip Evo A11MT | |
HP Spectre x360 14-ea0378ng | |
Dell XPS 13 9310 2-in-1 | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7 (39000 - 46951, n=45) |
AIDA64 / FPU SinJulia | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
Average Intel Core i5-1135G7 (3497 - 4445, n=45) | |
HP Spectre x360 14-ea0378ng |
AIDA64 / FPU Mandel | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
MSI Summit E13 Flip Evo A11MT | |
Dell XPS 13 9310 2-in-1 | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7 (12569 - 19635, n=45) | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
HP Spectre x360 14-ea0378ng |
AIDA64 / CPU AES | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
MSI Summit E13 Flip Evo A11MT | |
Dell XPS 13 9310 2-in-1 | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7 (28988 - 67977, n=45) | |
HP Spectre x360 14-ea0378ng | |
Lenovo Yoga 9 14IAP7 82LU0001US |
AIDA64 / CPU ZLib | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
Average Intel Core i5-1135G7 (265 - 373, n=51) | |
HP Spectre x360 14-ea0378ng |
AIDA64 / FP64 Ray-Trace | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
Average Intel Core i5-1135G7 (2226 - 4291, n=45) | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
HP Spectre x360 14-ea0378ng |
AIDA64 / CPU PhotoWorxx | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90P | |
MSI Summit E13 Flip Evo A11MT | |
Dell XPS 13 9310 2-in-1 | |
HP Spectre x360 14-ea0378ng | |
Average Intel Core i5-1135G7 (9004 - 45366, n=45) | |
Asus ZenBook Flip 14 UN5401QA-KN085W |
System Performance
PCMark 10 results are generally higher than on the older Gram 14T90N especially in the Digital Content Creation subtest where GPU performance is favored. Our Productivity score, however, is lower for reasons unknown.
CrossMark: Overall | Productivity | Creativity | Responsiveness
PCMark 10 / Score | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
Dell XPS 13 9310 2-in-1 | |
MSI Summit E13 Flip Evo A11MT | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (4026 - 4952, n=53) | |
HP Spectre x360 14-ea0378ng | |
LG Gram 14T90N |
PCMark 10 / Essentials | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
Dell XPS 13 9310 2-in-1 | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
LG Gram 14T90P | |
HP Spectre x360 14-ea0378ng | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (8149 - 9917, n=53) | |
LG Gram 14T90N | |
MSI Summit E13 Flip Evo A11MT |
PCMark 10 / Productivity | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
LG Gram 14T90N | |
MSI Summit E13 Flip Evo A11MT | |
Dell XPS 13 9310 2-in-1 | |
LG Gram 14T90P | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
HP Spectre x360 14-ea0378ng | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (5040 - 6619, n=53) |
PCMark 10 / Digital Content Creation | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Dell XPS 13 9310 2-in-1 | |
MSI Summit E13 Flip Evo A11MT | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (3548 - 5255, n=53) | |
LG Gram 14T90P | |
HP Spectre x360 14-ea0378ng | |
LG Gram 14T90N |
CrossMark / Overall | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (1058 - 1293, n=11) |
CrossMark / Productivity | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (1148 - 1332, n=11) |
CrossMark / Creativity | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (895 - 1263, n=11) |
CrossMark / Responsiveness | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs (923 - 1320, n=11) |
PCMark 10 Score | 4681 points | |
Help |
AIDA64 / Memory Copy | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
MSI Summit E13 Flip Evo A11MT | |
HP Spectre x360 14-ea0378ng | |
Average Intel Core i5-1135G7 (17443 - 63889, n=45) | |
Asus ZenBook Flip 14 UN5401QA-KN085W |
AIDA64 / Memory Read | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
MSI Summit E13 Flip Evo A11MT | |
HP Spectre x360 14-ea0378ng | |
Average Intel Core i5-1135G7 (19716 - 63705, n=45) | |
Asus ZenBook Flip 14 UN5401QA-KN085W |
AIDA64 / Memory Write | |
LG Gram 14T90P | |
Dell XPS 13 9310 2-in-1 | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
MSI Summit E13 Flip Evo A11MT | |
HP Spectre x360 14-ea0378ng | |
Average Intel Core i5-1135G7 (18722 - 66778, n=45) | |
Asus ZenBook Flip 14 UN5401QA-KN085W |
AIDA64 / Memory Latency | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
MSI Summit E13 Flip Evo A11MT | |
Dell XPS 13 9310 2-in-1 | |
HP Spectre x360 14-ea0378ng | |
LG Gram 14T90P | |
Average Intel Core i5-1135G7 (68.3 - 107, n=51) |
* ... smaller is better
DPC Latency
LatencyMon shows minor DPC issues when opening multiple browser tabs on our homepage. 4K video playback at 60 FPS is otherwise perfect with absolutely no dropped frames.
DPC Latencies / LatencyMon - interrupt to process latency (max), Web, Youtube, Prime95 | |
MSI Summit E13 Flip Evo A11MT | |
HP Spectre x360 14-ea0378ng | |
Lenovo Yoga 9 14IAP7 82LU0001US | |
LG Gram 14T90N | |
LG Gram 14T90P | |
Asus ZenBook Flip 14 UN5401QA-KN085W | |
Dell XPS 13 9310 2-in-1 |
* ... smaller is better
Storage Devices — Ships With PCIe3 Drives
Our unit comes with the same 512 GB Samsung PM981a PCIe3 x4 NVMe SSD as on the Gram 14T90N even though the Tiger Lake-UP3 motherboard should be able to support PCIe4 x4 end-user upgrades for faster speeds. Nonetheless, the PM981a has no issues sustaining its maximum transfer rate of ~3400 MB/s over extended periods in our tests. It remains one of the fastest PCIe3 NVMe drives for consumers.
* ... smaller is better
Disk Throttling: DiskSpd Read Loop, Queue Depth 8
GPU Performance
Graphics performance from the integrated Iris Xe 80 EUs is excellent and faster than on most other laptops equipped with the same GPU. When compared to the more common Core i7 Iris Xe 96 EUs, our Core i5 Iris Xe 80 EUs can be about 15 to 30 percent slower. It's still a significant upgrade from the UHD Graphics 620 on the older Gram 14T90N nonetheless.
Unfortunately, performance is not as steady as we would like. When idling on Witcher 3 at Low 720p settings, for example, frame rates would fluctuate between 75 and 85 FPS instead of remaining steady throughout like on most other laptops. Running Fire Strike two times in a row would also result in a relatively wide Physics score discrepancy (10017 points vs. 11226 points). We recommend enabling vsync to limit screen tearing and unsteady frame times.
3DMark 11 Performance | 6475 points | |
3DMark Cloud Gate Standard Score | 15851 points | |
3DMark Fire Strike Score | 4172 points | |
3DMark Time Spy Score | 1295 points | |
Help |
Witcher 3 FPS Chart
low | med. | high | ultra | |
GTA V (2015) | 83.3 | 75.1 | 25.9 | 11.4 |
The Witcher 3 (2015) | 89.8 | 55.6 | 32.3 | 14.1 |
Dota 2 Reborn (2015) | 85.8 | 73.3 | 46 | 42.2 |
Final Fantasy XV Benchmark (2018) | 34.4 | 20.1 | 15.6 | |
X-Plane 11.11 (2018) | 40.5 | 32.8 | 30.2 | |
Strange Brigade (2018) | 88.3 | 36.3 | 28.4 | 23.2 |
Emissions
System Noise — Quiet Under Most Conditions
Fan noise behavior is similar to what we observed on the Gram 14T90N which was already a relatively quiet machine. We're able to measure just 28.3 dB(A) even after running the first benchmark scene of 3DMark 06 to be quieter than the Dell XPS 13, Lenovo Yoga 9 14, and Asus ZenBook Flip 14 when under similar conditions. Fan noise appears to top out at 35 dB(A) when gaming or if the CPU is at 100 percent utilization.
Noise Level
Idle |
| 25.5 / 25.5 / 25.5 dB(A) |
Load |
| 28.3 / 35 dB(A) |
| ||
30 dB silent 40 dB(A) audible 50 dB(A) loud |
||
min: , med: , max: Earthworks M23R, Arta (15 cm distance) environment noise: 25.4 dB(A) |
LG Gram 14T90P Iris Xe G7 80EUs, i5-1135G7, Samsung SSD PM981a MZVLB512HBJQ | Dell XPS 13 9310 2-in-1 Iris Xe G7 96EUs, i7-1165G7, Toshiba BG4 KBG40ZPZ512G | Lenovo Yoga 9 14IAP7 82LU0001US Iris Xe G7 96EUs, i7-1260P, Samsung PM9A1 MZVL2512HCJQ | Asus ZenBook Flip 14 UN5401QA-KN085W Vega 8, R7 5800H, Intel SSD 600p SSDPEKKW512G7 | HP Spectre x360 14-ea0378ng Iris Xe G7 96EUs, i7-1165G7, Intel Optane Memory H10 with Solid State Storage 32GB + 1TB HBRPEKNX0203AH(L/H) | MSI Summit E13 Flip Evo A11MT Iris Xe G7 96EUs, i7-1185G7, Phison 1TB SM2801T24GKBB4S-E162 | LG Gram 14T90N UHD Graphics 620, i7-10510U, Samsung SSD PM981a MZVLB512HBJQ | |
---|---|---|---|---|---|---|---|
Noise | -7% | -5% | -13% | -8% | -12% | -16% | |
off / environment * | 25.4 | 24.3 4% | 22.9 10% | 26 -2% | 26 -2% | 24.5 4% | 29 -14% |
Idle Minimum * | 25.5 | 24.8 3% | 23.3 9% | 26 -2% | 26 -2% | 24.7 3% | 30 -18% |
Idle Average * | 25.5 | 24.8 3% | 23.5 8% | 26 -2% | 26 -2% | 24.7 3% | 30 -18% |
Idle Maximum * | 25.5 | 24.8 3% | 23.5 8% | 27.3 -7% | 26 -2% | 26.4 -4% | 30 -18% |
Load Average * | 28.3 | 38 -34% | 33.2 -17% | 39.8 -41% | 37.5 -33% | 37.8 -34% | 35.2 -24% |
Witcher 3 ultra * | 35 | 38 -9% | 44.9 -28% | 41.4 -18% | |||
Load Maximum * | 35 | 41.5 -19% | 44.6 -27% | 42.4 -21% | 36.3 -4% | 48.8 -39% | 37 -6% |
* ... smaller is better
Temperature
Surface temperatures are cooler than what we observed on the competing Lenovo Yoga 9 14IAP7 when running low loads while they are about the same between them when running more demanding loads. Hot spots are nearest the keyboard center where it can reach 40 C to be comparable to the Gram 14T90N or aforementioned Lenovo.
(±) The maximum temperature on the upper side is 41.6 °C / 107 F, compared to the average of 35.3 °C / 96 F, ranging from 19.6 to 55.7 °C for the class Convertible.
(-) The bottom heats up to a maximum of 46.2 °C / 115 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 21.6 °C / 71 F, compared to the device average of 30.2 °C / 86 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 26.2 °C / 79.2 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.1 °C / 82.6 F (+1.9 °C / 3.4 F).
LG Gram 14T90P Intel Core i5-1135G7, Intel Iris Xe Graphics G7 80EUs | Dell XPS 13 9310 2-in-1 Intel Core i7-1165G7, Intel Iris Xe Graphics G7 96EUs | Lenovo Yoga 9 14IAP7 82LU0001US Intel Core i7-1260P, Intel Iris Xe Graphics G7 96EUs | Asus ZenBook Flip 14 UN5401QA-KN085W AMD Ryzen 7 5800H, AMD Radeon RX Vega 8 (Ryzen 4000/5000) | HP Spectre x360 14-ea0378ng Intel Core i7-1165G7, Intel Iris Xe Graphics G7 96EUs | MSI Summit E13 Flip Evo A11MT Intel Core i7-1185G7, Intel Iris Xe Graphics G7 96EUs | LG Gram 14T90N Intel Core i7-10510U, Intel UHD Graphics 620 | |
---|---|---|---|---|---|---|---|
Heat | -12% | -29% | -29% | -8% | -33% | -14% | |
Maximum Upper Side * | 41.6 | 51 -23% | 43.2 -4% | 42.7 -3% | 37.1 11% | 52 -25% | 43.2 -4% |
Maximum Bottom * | 46.2 | 45.4 2% | 45.6 1% | 53.1 -15% | 43.1 7% | 57.4 -24% | 41.6 10% |
Idle Upper Side * | 22.6 | 24.4 -8% | 34.6 -53% | 32.9 -46% | 29 -28% | 30.4 -35% | 29.2 -29% |
Idle Bottom * | 23.2 | 27.4 -18% | 37 -59% | 35.2 -52% | 28.6 -23% | 34.2 -47% | 30.6 -32% |
* ... smaller is better
Stress Test
When stressed under Prime95, the CPU would boost to 3.5 GHz and 95 C for a few seconds before steadily dropping and eventually stabilizing at 2.1 GHz and 73 C. We suspect that the processor won't stabilize at higher clock rates to keep skin temperature in check. CPU TDP would be as high as 47 W during the start of the test before stabilizing at just 18 W as a result. In comparison, running this same test on the HP Spectre x360 14 with the Core i7-1165G7 would result in a cycling CPU clock rate and temperature of 2.1 - 3.4 GHz and 75 - 95 C, respectively, for higher performance on average.
Running on Performance mode results in both higher clock rates and temperatures as shown by our graphs and table below.
Performance will not be limited if running on battery power as Fire Strike scores on mains and on batteries are very similar.
CPU Clock (GHz) | GPU Clock (MHz) | Average CPU Temperature (°C) | |
System Idle | -- | -- | 34 |
Prime95 Stress | 2.1 | -- | 73 |
Prime95 + FurMark Stress | ~1.2 | 750 - 900 | 71 |
Witcher 3 Stress (Balanced power profile) | 0.6 | 800 | 63 |
Witcher 3 Stress (Performance power profile) | ~1.0 | 1000 | 72 |
Speakers
LG Gram 14T90P audio analysis
(±) | speaker loudness is average but good (79.9 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 13.1% lower than median
(±) | linearity of bass is average (13.3% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.6% higher than median
(+) | mids are linear (4.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.3% away from median
(+) | highs are linear (3.9% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.3% difference to median)
Compared to same class
» 21% of all tested devices in this class were better, 3% similar, 76% worse
» The best had a delta of 6%, average was 21%, worst was 57%
Compared to all devices tested
» 18% of all tested devices were better, 3% similar, 79% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Apple MacBook Pro 16 2021 M1 Pro audio analysis
(+) | speakers can play relatively loud (84.7 dB)
Bass 100 - 315 Hz
(+) | good bass - only 3.8% away from median
(+) | bass is linear (5.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.3% away from median
(+) | mids are linear (2.1% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.9% away from median
(+) | highs are linear (2.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (4.6% difference to median)
Compared to same class
» 0% of all tested devices in this class were better, 0% similar, 100% worse
» The best had a delta of 5%, average was 18%, worst was 45%
Compared to all devices tested
» 0% of all tested devices were better, 0% similar, 100% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Energy Management
Power Consumption
The system is very power efficient consuming just 2 W to 7 W when idling on desktop depending on the power profile and brightness setting. Running gaming-level loads will demand around 45 W or about 36 percent more power than on the LG Gram 14T90N. GPU performance is at least 2x to 3x faster, however, and so the higher power consumption is well worth the gains in graphics.
We're able to record a maximum temporary draw of 66 W from the small (~9.8 x 6 x 2.7 cm) 65 W USB-C AC adapter when the CPU is at 100 percent utilization.
Off / Standby | 0.31 / 0.56 Watt |
Idle | 2.8 / 5.5 / 6.4 Watt |
Load |
45.4 / 65.9 Watt |
LG Gram 14T90P i5-1135G7, Iris Xe G7 80EUs, Samsung SSD PM981a MZVLB512HBJQ, IPS, 1900x1200, 14.00 | Dell XPS 13 9310 2-in-1 i7-1165G7, Iris Xe G7 96EUs, Toshiba BG4 KBG40ZPZ512G, IPS, 1920x1200, 13.40 | Lenovo Yoga 9 14IAP7 82LU0001US i7-1260P, Iris Xe G7 96EUs, Samsung PM9A1 MZVL2512HCJQ, OLED, 2880x1800, 14.00 | Asus ZenBook Flip 14 UN5401QA-KN085W R7 5800H, Vega 8, Intel SSD 600p SSDPEKKW512G7, OLED, 2880x1800, 14.00 | HP Spectre x360 14-ea0378ng i7-1165G7, Iris Xe G7 96EUs, Intel Optane Memory H10 with Solid State Storage 32GB + 1TB HBRPEKNX0203AH(L/H), OLED, 3000x2000, 13.50 | MSI Summit E13 Flip Evo A11MT i7-1185G7, Iris Xe G7 96EUs, Phison 1TB SM2801T24GKBB4S-E162, IPS, 1920x1200, 13.40 | LG Gram 14T90N i7-10510U, UHD Graphics 620, Samsung SSD PM981a MZVLB512HBJQ, IPS, 1920x1080, 14.00 | |
---|---|---|---|---|---|---|---|
Power Consumption | 6% | -93% | -57% | -52% | -36% | 10% | |
Idle Minimum * | 2.8 | 2.6 7% | 8 -186% | 6.4 -129% | 6.3 -125% | 4.8 -71% | 2.9 -4% |
Idle Average * | 5.5 | 6.4 -16% | 14 -155% | 9.4 -71% | 11.2 -104% | 8.4 -53% | 5.8 -5% |
Idle Maximum * | 6.4 | 7.7 -20% | 14.4 -125% | 10.7 -67% | 13.3 -108% | 8.6 -34% | 6.2 3% |
Load Average * | 45.4 | 29.9 34% | 59.6 -31% | 52.2 -15% | 32 30% | 47.1 -4% | 32.9 28% |
Witcher 3 ultra * | 34 | 32.2 5% | 53.6 -58% | 53 -56% | 51.6 -52% | ||
Load Maximum * | 65.9 | 47.5 28% | 68.1 -3% | 69 -5% | 35.6 46% | 65.9 -0% | 48.5 26% |
* ... smaller is better
Power Consumption Witcher 3 / Stresstest
Power Consumption external Monitor
Battery Life — Full Day Of Browsing
Battery capacity is the same as on the older Gram 14T90N at 72 Wh. Perhaps uncoincidentally, their WLAN runtimes are also nearly identical at just over 12 hours of real-world browsing use. It's good to see battery life not take a hit even though processor performance has gone up significantly when compared to 10th gen Comet Lake-U.
Charging from empty to full capacity is very slow at 2.5 hours compared to 1.5 hours or faster on most other Ultrabooks.
LG Gram 14T90P i5-1135G7, Iris Xe G7 80EUs, 72 Wh | Dell XPS 13 9310 2-in-1 i7-1165G7, Iris Xe G7 96EUs, 51 Wh | Lenovo Yoga 9 14IAP7 82LU0001US i7-1260P, Iris Xe G7 96EUs, 75 Wh | Asus ZenBook Flip 14 UN5401QA-KN085W R7 5800H, Vega 8, 63 Wh | HP Spectre x360 14-ea0378ng i7-1165G7, Iris Xe G7 96EUs, 66 Wh | MSI Summit E13 Flip Evo A11MT i7-1185G7, Iris Xe G7 96EUs, 70 Wh | LG Gram 14T90N i7-10510U, UHD Graphics 620, 72 Wh | |
---|---|---|---|---|---|---|---|
Battery Runtime | 19% | -44% | -19% | -11% | -15% | 7% | |
WiFi v1.3 | 728 | 643 -12% | 405 -44% | 522 -28% | 466 -36% | 672 -8% | 751 3% |
Load | 138 | 205 49% | 124 -10% | 157 14% | 109 -21% | 153 11% | |
Reader / Idle | 1525 | 803 | 1267 | 1966 | |||
H.264 | 542 | 666 |
Pros
Cons
Verdict — The Gram To Get
The lighter-than-average weight, crisp 16:10 DCI-P3 touchscreen, and excellent battery life are all highlights of the Gram 14T90P. Its new design is stronger without adding any weight to maintain one of the biggest advantages of the 14-inch Gram series over competitors like the heavier Lenovo Yoga 9 14, HP Spectre x360 14, or Dell XPS 13 2-in-1. The chassis may be slightly less rigid, but the weight savings may be worth the drawback for travelers or students.
The Gram 14T90P is the full-fledged update that the 14-inch Gram series needed.
Unfortunately, there is a decent list of pitfalls that we would love to see improved. The slow charge rate, unsteady frame rates when gaming, spongy clickpad, average display brightness, lack of Windows Hello support, difficult serviceability, and average hinge rigidity all bring down an otherwise excellent 14-inch convertible. If LG can fix these major drawbacks while maintaining the low weight, then the Gram 14 would easily stand toe-to-toe with more popular alternatives from Dell, Lenovo, or HP.
Price and Availability
LG Gram 14T90P
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05/21/2022 v7
Allen Ngo