Notebookcheck

Dell Latitude 7490 (i5-8350U, FHD) Laptop Review

Steve Schardein, 👁 Allen Ngo, 06/21/2018

Reliable business partner. Today’s Latitude 7490 configuration packs a quad-core Core i5-8350U and conventional M.2 SATA storage, and it makes a few more cuts to deflate the cost a bit. Even so, this remains an impressive machine. How does this configuration stand up to its competitors?

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Back in April, we reviewed Dell’s latest 14-inch Latitude 7000 series machine, the Latitude 7490. Unsurprisingly, we found our test unit to be overall excellent (in keeping with the trends of its forebears). While it’s true that the 7490 is primarily an iterative (rather than revolutionary) update—preserving the perennially-lauded magnesium casing, terrific keyboard, straightforward maintenance, and all-day battery life—this year’s revision also introduces a few other significant improvements. Apart from the obvious benefits bestowed by the quad-core Intel Kaby Lake Refresh CPUs, the touchpad has been greatly enhanced by the adoption of Windows Precision drivers, and the incorporation of Active Steering Antenna technology seems to have improved WLAN throughput and reliability to boot.

Our previous review unit packed a Core i7 and one of Dell’s new embedded touch displays (which are a pretty enticing alternative to the usual high-gloss touchscreens); today’s review unit dials back the CPU to a Core i5-8350U, reverts to a conventional FHD non-touch (still matte) display, and makes a few other minor changes. It retails currently for $1,709 directly from Dell, which is a few hundred bucks below the previous configuration. How does it stand up to fierce competitors from Lenovo (ThinkPad X1 Carbon) and HP (EliteBook 840 G5)? Let’s dig into the data and find out.

Dell Latitude 7490
Graphics adapter
Intel UHD Graphics 620, Core: 300-1100 MHz, 22.20.16.4836
Memory
8192 MB 
, DDR4-2400
Display
14 inch 16:9, 1920 x 1080 pixel 157 PPI, AUO503D (D04YD_B140HAN), IPS, glossy: no
Mainboard
Intel Sunrise Point-LP
Storage
Toshiba KSG60ZMV256G, 256 GB 
Soundcard
Realtek ALC256 @ Intel Sunrise Point-LP PCH - High Definition Audio Controller
Connections
4 USB 3.0 / 3.1 Gen1, 1 HDMI, 1 DisplayPort, 1 Kensington Lock, Audio Connections: 3.5 mm combo audio, Card Reader: SD
Networking
Intel Ethernet Connection I219-LM (10/100/1000MBit), Intel Dual Band Wireless-AC 8265 (a/b/g/n/ac), Bluetooth 4.2
Size
height x width x depth (in mm): 17.9 x 331 x 220.9 ( = 0.7 x 13.03 x 8.7 in)
Battery
60 Wh, 7500 mAh Lithium-Ion
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: 720p
Primary Camera: 1 MPix
Additional features
Keyboard: Chiclet, Keyboard Light: yes, 36 Months Warranty
Weight
1.561 kg ( = 55.06 oz / 3.44 pounds), Power Supply: 293 g ( = 10.34 oz / 0.65 pounds)
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Case

The case design hasn’t changed much since our previous review unit, so we’ll refer you to that article for our full impressions. The sole difference with today’s configuration is the exchange of the carbon fiber lid (which optionally lines the back of the embedded touch panel, which today’s unit lacks) for a conventional magnesium lid that we recognize from the 7480. To summarize the rest of our impressions, the (nearly fully magnesium) construction is as sturdy as ever, with very little flex across the base unit even under direct pressure. The display lid, likewise, remains highly resistant to torsion, and the single central hinge is stiff enough to prevent the lid from unintended vibration—though it’s impossible to open without both hands. Gaps between parts are even and small.

Our single complaint is merely an aesthetic one: namely, the penchant of the soft-touch material covering the surfaces for collecting and preserving fingerprints and skin oils. Otherwise, the Latitude 7490 remains one of the best-constructed business laptops on the market today.

Connectivity

Today’s test configuration lacks the Thunderbolt port and smart card reader of the Core i7 setup we reviewed back in April, but it’s otherwise identical. The Thunderbolt port has been exchanged instead for a conventional USB Type-C (with DisplayPort). Port selection and placement, as before, is overall very good—with four total USB ports (if the aforementioned Type-C port is included) and plenty of space between the connections, all of which are located on the left and right sides.

Front: no connections
Front: no connections
Rear: No connections
Rear: No connections
Left: Charging port, USB Type-C/Displayport, HDMI, USB 3.0 x 2
Left: Charging port, USB Type-C/Displayport, HDMI, USB 3.0 x 2
Right: Combo audio 3.5 mm, microSD, sim card, USB 3.0, Ethernet, Kensington Lock
Right: Combo audio 3.5 mm, microSD, sim card, USB 3.0, Ethernet, Kensington Lock

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SD Card Reader

The Latitude 7490’s integrated microSD card reader manages reasonable speeds—ahead of the ThinkPad T480s and not far from the Latitude 7390, but well below the ThinkPad X1 Carbon, which leads the field.

SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
  (Toshiba Exceria Pro M501)
191.2 MB/s ∼100% +39%
Dell Latitude 7390
  (Toshiba Exceria Pro M501 UHS-II)
153.99 MB/s ∼81% +12%
Dell Latitude 7490
  (Toshiba Exceria Pro M501 UHS-II)
137.6 MB/s ∼72%
Lenovo ThinkPad T480s-20L8S02D00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
81.2 MB/s ∼42% -41%
Average of class Office
  (10.2 - 191, n=229)
61.2 MB/s ∼32% -56%
maximum AS SSD Seq Read Test (1GB)
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
  (Toshiba Exceria Pro M501)
223.9 MB/s ∼100% +10%
Dell Latitude 7390
  (Toshiba Exceria Pro M501 UHS-II)
211.06 MB/s ∼94% +4%
Dell Latitude 7490
  (Toshiba Exceria Pro M501 UHS-II)
203.2 MB/s ∼91%
Lenovo ThinkPad T480s-20L8S02D00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
89.9 MB/s ∼40% -56%
Average of class Office
  (9.5 - 255, n=206)
78.7 MB/s ∼35% -61%

Communication

Powering the Latitude’s WLAN connectivity is the esteemed Intel Dual Band Wireless-AC 8265, which is in fact the same adapter used by all competitors in our comparison field. The Latitude 7490 edges out its peers, however, possibly thanks to its adoption of Active Steering Antenna technology (which we discussed in our previous review). You can read more about this particular technology here.

The WLAN adapter
The WLAN adapter
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Dell Latitude 7490
Intel Dual Band Wireless-AC 8265
650 MBit/s ∼100%
HP EliteBook 840 G5-3JX66EA
Intel Dual Band Wireless-AC 8265
644 MBit/s ∼99% -1%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Dual Band Wireless-AC 8265
633 MBit/s ∼97% -3%
Lenovo ThinkPad T480s-20L8S02D00
Intel Dual Band Wireless-AC 8265
618 MBit/s ∼95% -5%
Average of class Office
  (5 - 688, n=170)
462 MBit/s ∼71% -29%
iperf3 Client (transmit) TCP 1 m 4M x10
HP EliteBook 840 G5-3JX66EA
Intel Dual Band Wireless-AC 8265
523 MBit/s ∼100% +2%
Lenovo ThinkPad T480s-20L8S02D00
Intel Dual Band Wireless-AC 8265
519 MBit/s ∼99% +1%
Dell Latitude 7490
Intel Dual Band Wireless-AC 8265
513 MBit/s ∼98%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Dual Band Wireless-AC 8265
511 MBit/s ∼98% 0%
Average of class Office
  (34 - 688, n=170)
427 MBit/s ∼82% -17%

Security (business devices)

Absent from today’s review unit is the touch fingerprint reader that occupied the right palmrest of the configuration we reviewed a couple of months ago—along with the NFC reader. As previously mentioned, the smart card reader is also missing. Finally, the IR camera (for Windows Hello and facial recognition) has been replaced by a conventional webcam. However, the typical Dell Client Command Suite and related software are still available.

Accessories

Since today’s unit trades the Thunderbolt port for a traditional USB Type-C/DisplayPort instead, Thunderbolt docks (such as the Dell TB16) won’t work. Instead, users will need to opt for a USB 3.0 or USB Type-C dock, which will still probably suffice for the average user. No accessories were included with our review system apart from a 65 W AC adapter.

Maintenance

The ease of the disassembly process has not changed since our last review; some eight captive Phillips Head screws secure the bottom cover, and nearly every replaceable component is available immediately beneath the panel. One gripe which still applies here is that the keyboard is among the hardest of all FRUs to replace since it’s beneath the motherboard—though this is unfortunately a pretty common trend these days thanks to the thinness of the devices populating even the business segment (which are more and more akin to their consumer-grade counterparts as the years pass). There’s also an adhesive lining the LCD panel to help keep a consistent seal between the bezel and display that’s perilous during disassembly. In the event of a broken screen, technicians will need to take care to separate the bezel and panel surround without damaging anything.

On the other hand, a notable advantage of the Latitude design is the incorporation of a plug-in DC jack rather than a conventional design in which it is soldered to the board. This makes DC jack replacements relatively painless, far easier than the full disassembly, board removal, and desolder/solder work that is required for a traditional broken DC jack.

With eight screws removed, the bottom cover easily comes off.
With eight screws removed, the bottom cover easily comes off.
Note the plug-in DC jack design for easy replacement.
Note the plug-in DC jack design for easy replacement.

Warranty

All US Latitude 7490 machines ship with a 3-year, on-site warranty (after remote diagnosis) from Dell. Various upgrades are available, including longer warranty terms and ProSupport/ProSupport Plus packages which include North American dedicated support specialists.

Input Devices

Keyboard

Alongside Lenovo’s ThinkPad devices, Dell Latitude 5000 and 7000 laptops consistently possess some of the highest-rated keyboards around. The Latitude 7490 is no exception; its chiclet keys are well-spaced, the layout is familiar, and visibility is very good (thanks to the black keys with white labels and a two-stage backlight that’s mostly even). Actuation force is medium and travel is lengthy—roughly 2 mm—with a good sense of feedback that supports fast typing without obtrusive noise. There is no “clatter” or unintended movement of keys. Overall, it’s an excellent keyboard and easily among the best we’ve reviewed.

Touchpad

Majorly improved over last generation’s version (on the Latitude 7480) is the Alps touchpad, which now supports Microsoft Precision drivers for a notably more responsive and smooth operation. We had absolutely no problems during our time with the unit; pointer movement is quick and without delay. Although it's not quite as large as the touchpads from some competitors, we didn't struggle much with real estate for the typical gestures, which are reliably interpreted. The two buttons below the pad are quiet yet springy and comfortable for long-term use—far better than most any integrated buttons.

The excellent keyboard is accompanied by...
The excellent keyboard is accompanied by...
...an almost-as-excellent touchpad.
...an almost-as-excellent touchpad.

Display

Today’s Latitude 7490 retains the 1920x1080 resolution, but exchanges the embedded touch display of our previous unit with a conventional IPS, non-touch, matte panel. Subjectively, color seems vivid, contrast appears strong, and brightness is fairly good. Our measurements revealed an average brightness of 294 cd/m²—ever-so-slightly below that of the embedded touch model—and a very good contrast ratio of 1342:1. While the ThinkPad T480s and the EliteBook 840 G5 in our comparison table only achieve results slightly above these, the X1 Carbon absolutely blows them all away with an average brightness of 533 cd/m²—and the 840 G5 offers a superior FHD IPS display option with a mind-blowing 630 cd/m² result. While today’s screen is certainly nice enough, Dell should consider stepping up their options for the next model to stay in competition.

Our display did exhibit some unfortunate backlight bleed in the lower left and right corners, as well as near the top right corner. As a whole, brightness distribution was fairly good, however, at 89%.

Subpixel array, Dell Latitude 7490
Subpixel array, Dell Latitude 7490
Backlight bleed
Backlight bleed
303.4
cd/m²
304.8
cd/m²
300.4
cd/m²
273.8
cd/m²
308.6
cd/m²
280.9
cd/m²
275.2
cd/m²
305.7
cd/m²
293.4
cd/m²
Distribution of brightness
X-Rite i1Pro Basic 2
Maximum: 308.6 cd/m² Average: 294 cd/m²
Brightness Distribution: 89 %
Center on Battery: 308.6 cd/m²
Contrast: 1342:1 (Black: 0.23 cd/m²)
ΔE Color 6.07 | 0.4-29.43 Ø6.3, calibrated: 1.67
ΔE Greyscale 7.3 | 0.64-98 Ø6.5
97% sRGB (Argyll 3D) 62% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.061
Dell Latitude 7490
AUO503D (D04YD_B140HAN), IPS, 14, 1920x1080
HP EliteBook 840 G5-3JX66EA
AUO3B3D, IPS, 14, 1920x1080
Dell Latitude 7390
LGD059B, IPS, 13.3, 1920x1080
Lenovo ThinkPad T480s-20L8S02D00
LP140QH2-SPB1, IPS, 14, 2560x1440
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
B140QAN02.0, IPS, 14, 2560x1440
Dell Latitude 7490
AU Optronics AU0223D, IPS, 14, 1920x1080
Response Times
-1%
9%
10%
-25%
-9%
Response Time Grey 50% / Grey 80% *
41.6 (22, 19.6)
42.4 (19.6, 22.8)
-2%
36.8 (18, 18.8)
12%
38.4 (19.6, 18.8)
8%
59.2 (28.4, 30.8)
-42%
48.4 (27.6, 20.8)
-16%
Response Time Black / White *
32 (16.4, 15.6)
31.6 (18, 13.6)
1%
30.4 (18.8, 11.6)
5%
28.4 (15.6, 12.8)
11%
34.4 (16.4, 18)
-8%
32.4 (18.8, 13.6)
-1%
PWM Frequency
Screen
5%
7%
1%
36%
-6%
Brightness middle
308.6
414
34%
303.8
-2%
352
14%
578
87%
328.2
6%
Brightness
294
387
32%
289
-2%
343
17%
533
81%
305
4%
Brightness Distribution
89
87
-2%
86
-3%
91
2%
84
-6%
87
-2%
Black Level *
0.23
0.25
-9%
0.31
-35%
0.46
-100%
0.38
-65%
0.37
-61%
Contrast
1342
1656
23%
980
-27%
765
-43%
1521
13%
887
-34%
Colorchecker DeltaE2000 *
6.07
5.5
9%
2.9
52%
3.3
46%
1.9
69%
3.82
37%
Colorchecker DeltaE2000 max. *
10.58
9.9
6%
5.79
45%
7.3
31%
3.8
64%
5.58
47%
Colorchecker DeltaE2000 calibrated *
1.67
2.3
-38%
1.72
-3%
0.8
52%
3.5
-110%
Greyscale DeltaE2000 *
7.3
6.4
12%
3.7
49%
5.3
27%
3
59%
3
59%
Gamma
2.061 107%
2.31 95%
2.118 104%
2.22 99%
2.14 103%
2.36 93%
CCT
7269 89%
7811 83%
6323 103%
6452 101%
6377 102%
6962 93%
Color Space (Percent of AdobeRGB 1998)
62
56.9
-8%
63
2%
68.4
10%
88.8
43%
58
-6%
Color Space (Percent of sRGB)
97
88.1
-9%
95
-2%
98
1%
100
3%
88
-9%
Total Average (Program / Settings)
2% / 4%
8% / 7%
6% / 2%
6% / 27%
-8% / -7%

* ... smaller is better

Color coverage is good at 97% of sRGB and 62% of AdobeRGB. This is roughly in line with the performance of HP’s EliteBook 840 G5, which just barely edges it out. However, the X1 Carbon runs away with the crown with a whopping 89% of AdobeRGB; the 7490 manages to cover just 64% of its displayed color gamut.

vs. sRGB
vs. sRGB
vs. AdobeRGB
vs. AdobeRGB
vs. HP EliteBook 840 G5
vs. HP EliteBook 840 G5
vs. Lenovo X1 Carbon
vs. Lenovo X1 Carbon

Out of the box, the 7490’s color accuracy measurements were only average. Using CalMAN, we recorded an average ColorChecker DeltaE2000 of 6.07 and a maximum of 10.58 (White), along wide a Greyscale DeltaE2000 average of 7.3. The CCT Average of 7269 is also on the cool side, and our Total Gamma reading of 2.061 is below the ideal value of 2.2. A bit of calibration works wonders; afterwards, ColorChecker and Greyscale DeltaE average values dropped to just 1.67 and 1.8 respectively.

Color analysis (pre-calibration)
Color analysis (pre-calibration)
Saturation sweeps (pre-calibration)
Saturation sweeps (pre-calibration)
Grayscale analysis (pre-calibration)
Grayscale analysis (pre-calibration)
Color analysis (post-calibration)
Color analysis (post-calibration)
Saturation sweeps (post-calibration)
Saturation sweeps (post-calibration)
Grayscale analysis (post-calibration)
Grayscale analysis (post-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 ms ... rise ↗ and fall ↘ combined↗ 16.4 ms rise
↘ 15.6 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. » 82 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (25.6 ms).
       Response Time 50% Grey to 80% Grey
41.6 ms ... rise ↗ and fall ↘ combined↗ 22 ms rise
↘ 19.6 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 53 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (41 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: 52 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8773 (minimum: 43 - maximum: 142900) Hz was measured.

The panel’s response times are a bit on the slow side, but PWM is not used for brightness management.

Reflections are no problem for the Latitude 7480, which—thanks to its good brightness and contrast and anti-glare finish—is usable in all but the brightest of environments. Viewing angles of the IPS panel are excellent.

In the sun
In the sun
In the shade
In the shade
Viewing angles
Viewing angles

Performance

Only one RAM slot is occupied in our review unit.
Only one RAM slot is occupied in our review unit.

All Latitude 7490 machines pack Kaby Lake Refresh (8th generation) Intel CPUs ranging from dual-core Core i3 options up to quad-core Core i7 SoCs; all of the available chips operate under the constraints of 15 W TDP. While our previous review unit featured a Core i7 and 8 GB of dual-channel memory, today’s machine dials it back to an Intel Core i5-8350U and 8 GB of single-channel memory.

As it often does with the recent Latitude models, LatencyMon reported some issues with DPC latencies—which could translate to issues streaming real-time audio and video. Performance is not diminished while operating unplugged, however; a second run of 3DMark 11 on battery power resulted in a score of 1771, which is close enough to our original score to dispel any concerns.

Processor

Cinebench R15
Cinebench R15

While the 8th-generation Intel CPUs all tend to experience an initial short burst of performance before subsiding somewhat, the Intel Core i7 in our previous 7490 review unit still distances itself from the Core i5-8350U in our CPU tests—ahead by some 9% and 15% in the Cinebench R15 multi- and single-core tests, respectively. After the first few runs, average multi-core scores are closer to the 530 mark in our tests—again, below the less-consistent but still quite a bit higher (roughly) 570 we received over the long-term from the Core i7 model.

Compared with the rest of its peers, the 7490 roughly matches the EliteBook 840 G5, but it’s well below both the (larger) ThinkPad T480s and Core i7-equipped X1 Carbon. The Core i7 model fares better here, so if more power is needed, we’d recommend springing for that one. Naturally, however, for most users, today’s specifications will be perfectly sufficient.

Cinebench R15
CPU Single 64Bit
Dell Latitude 7490
Intel Core i7-8650U
176 Points ∼83% +15%
Dell Latitude 7390
Intel Core i7-8650U
176 Points ∼83% +15%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Core i7-8550U
168 Points ∼79% +10%
Dell Latitude 7480
Intel Core i7-7600U
162 Points ∼76% +6%
Dell Latitude 7490
Intel Core i5-8350U
153 Points ∼72%
Average Intel Core i5-8350U
  (128 - 153, n=8)
147 Points ∼69% -4%
Lenovo ThinkPad T480s-20L8S02D00
Intel Core i5-8250U
143 Points ∼67% -7%
HP EliteBook 840 G5-3JX66EA
Intel Core i5-8250U
143 Points ∼67% -7%
Lenovo Ideapad 720S-13ARR
AMD Ryzen 5 2500U
135 Points ∼63% -12%
Average of class Office
  (20 - 178, n=475)
108 Points ∼51% -29%
CPU Multi 64Bit
Lenovo ThinkPad T480s-20L8S02D00
Intel Core i5-8250U
724 Points ∼23% +27%
Lenovo ThinkPad T480s-20L8S02D00
Intel Core i5-8250U
716 Points ∼23% +26%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Core i7-8550U
708 Points ∼23% +24%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel Core i7-8550U
648 Points ∼21% +14%
Dell Latitude 7390
Intel Core i7-8650U
619 Points ∼20% +9%
Dell Latitude 7490
Intel Core i7-8650U
618 Points ∼20% +9%
HP EliteBook 840 G5-3JX66EA
Intel Core i5-8250U
583 Points ∼19% +2%
Dell Latitude 7490
Intel Core i5-8350U
569 Points ∼18%
Lenovo Ideapad 720S-13ARR
AMD Ryzen 5 2500U
556 Points ∼18% -2%
Average Intel Core i5-8350U
  (332 - 631, n=8)
536 Points ∼17% -6%
Dell Latitude 7480
Intel Core i7-7600U
343 Points ∼11% -40%
Average of class Office
  (36 - 1050, n=479)
316 Points ∼10% -44%
Cinebench R15 CPU Single 64Bit
153 Points
Cinebench R15 CPU Multi 64Bit
569 Points
Cinebench R15 OpenGL 64Bit
44.88 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
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Cinebench R15 CPU Multi 64 Bit

System Performance

Whereas the Core i7 setup was close to the top in most of our general productivity benchmarks, today’s unit hovers around the middle of the pack, and ever-so-slightly below average for all notebooks powered by this CPU currently in our database. The PCMark 8 Work Score of 4906 is very good, while the PCMark 10 overall score of 3564 is slightly less impressive.

The primary reason for today’s lower scores is probably the surrender of NVMe storage in favor of less expensive conventional M.2 SATA storage. At any rate, subjectively speaking, the machine seems nimble enough.

PCMark 10
PCMark 10
PCMark 8 Home Accelerated
PCMark 8 Home Accelerated
PCMark 8 Work Accelerated
PCMark 8 Work Accelerated
PCMark 8
Work Score Accelerated v2
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
5197 Points ∼80% +6%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
5155 Points ∼79% +5%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
4906 Points ∼75%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
4832 Points ∼74% -2%
Average Intel Core i5-8350U, Intel UHD Graphics 620
  (4200 - 4906, n=6)
4669 Points ∼72% -5%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
4664 Points ∼72% -5%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
4508 Points ∼69% -8%
Average of class Office
  (1226 - 5428, n=301)
3947 Points ∼61% -20%
Home Score Accelerated v2
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
4029 Points ∼66% +8%
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
3886 Points ∼64% +4%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
3752 Points ∼62% +1%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
3723 Points ∼61%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
3652 Points ∼60% -2%
Average Intel Core i5-8350U, Intel UHD Graphics 620
  (3063 - 3776, n=7)
3566 Points ∼59% -4%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
3503 Points ∼57% -6%
Average of class Office
  (1169 - 4458, n=352)
3007 Points ∼49% -19%
PCMark 10
Productivity
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
7142 Points ∼74% +25%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
6727 Points ∼69% +18%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
6521 Points ∼67% +14%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
5844 Points ∼60% +2%
Average Intel Core i5-8350U, Intel UHD Graphics 620
  (5004 - 6238, n=5)
5760 Points ∼59% +1%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
5739 Points ∼59% 0%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
5721 Points ∼59%
Average of class Office
  (1444 - 7142, n=94)
5363 Points ∼55% -6%
Essentials
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
8253 Points ∼77% +12%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
7929 Points ∼74% +7%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
7849 Points ∼74% +6%
Average Intel Core i5-8350U, Intel UHD Graphics 620
  (6994 - 7995, n=5)
7617 Points ∼71% +3%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
7376 Points ∼69%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
7358 Points ∼69% 0%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
7139 Points ∼67% -3%
Average of class Office
  (2683 - 8562, n=94)
6770 Points ∼63% -8%
Score
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
4053 Points ∼52% +14%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
3905 Points ∼50% +10%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
3602 Points ∼46% +1%
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
3564 Points ∼46%
Average Intel Core i5-8350U, Intel UHD Graphics 620
  (3004 - 3764, n=6)
3534 Points ∼46% -1%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
3429 Points ∼44% -4%
Average of class Office
  (803 - 4269, n=95)
3120 Points ∼40% -12%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
2429 Points ∼31% -32%
PCMark 8 Home Score Accelerated v2
3723 points
PCMark 8 Work Score Accelerated v2
4906 points
Help

Storage Devices

Predictably, storage speeds are well below those of the previous 7490, since this machine steps down to a Toshiba M.2 SATA drive from an NVMe Samsung PM961. Thanks to this, today’s unit is by far the lowest-scoring of all those in our field. Nevertheless (as we alluded to above), once a certain level of performance is reached, most users aren’t likely to notice any difference. Plus, the replacement/upgrade procedure (as we covered previously) is simple—so if cost trumps top-end performance concerns, this would be a logical place to pull back.

AS SSD
AS SSD
CrystalDiskMark
CrystalDiskMark
The internal M.2 SSD
The internal M.2 SSD
Dell Latitude 7490
Toshiba KSG60ZMV256G
Dell Latitude 7490
Samsung PM961 MZVLW256HEHP
HP EliteBook 840 G5-3JX66EA
Toshiba XG5 KXG50ZNV256G
Dell Latitude 7390
Samsung PM961 MZVLW256HEHP
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Samsung SSD PM981 MZVLB512HAJQ
Average Toshiba KSG60ZMV256G
 
AS SSD
135%
19%
113%
238%
0%
Copy Game MB/s
382.33
309.25
352.02
1107.45
Copy Program MB/s
227.09
168.2
247.36
460.17
Copy ISO MB/s
872.35
319.17
818.25
1246.8
Score Total
947
2350
148%
1232
30%
2215
134%
3529
273%
947
0%
Score Write
357
536
50%
376
5%
501
40%
1801
404%
357
0%
Score Read
391
1242
218%
603
54%
1158
196%
1168
199%
391
0%
Access Time Write *
0.056
0.03
46%
0.053
5%
0.032
43%
0.027
52%
0.056
-0%
Access Time Read *
0.112
0.04
64%
0.321
-187%
0.063
44%
0.029
74%
0.112
-0%
4K-64 Write
248.06
329.64
33%
248.31
0%
302.35
22%
1529.32
517%
248
0%
4K-64 Read
316.06
955.28
202%
413.33
31%
932.15
195%
876.34
177%
316
0%
4K Write
79.15
114.89
45%
93.56
18%
115.21
46%
134.3
70%
79.2
0%
4K Read
26.66
48.13
81%
29.01
9%
49.43
85%
52.4
97%
26.7
0%
Seq Write
294.93
919.14
212%
338.97
15%
830.13
181%
1376.19
367%
295
0%
Seq Read
486.16
2385.46
391%
1610.71
231%
1760.62
262%
2395.87
393%
486
0%

* ... smaller is better

Toshiba KSG60ZMV256G
CDM 5/6 Read Seq Q32T1: 532.6 MB/s
CDM 5/6 Write Seq Q32T1: 343.3 MB/s
CDM 5/6 Read 4K Q32T1: 188.3 MB/s
CDM 5/6 Write 4K Q32T1: 206 MB/s
CDM 5 Read Seq: 472.7 MB/s
CDM 5 Write Seq: 343.9 MB/s
CDM 5/6 Read 4K: 27.37 MB/s
CDM 5/6 Write 4K: 79.41 MB/s

GPU Performance

Today’s Latitude not only dials back the CPU (as discussed above), but it also downgrades the RAM configuration to single-channel—which does in fact affect the performance of integrated graphics. As a result, our scores are some 16% to 22% below those of the 7490 we reviewed in April, and near the bottom of the pack overall (which the X1 Carbon dominates).

Needless to say, this isn’t enough horsepower to run any modern games at even low settings—but the Latitude 7490 isn’t a gaming machine. If graphical performance is of any significant concern, we’d advise springing for the higher-end configurations (with both Core i7 CPU and dual-channel memory) if possible.

3DMark Fire Strike
3DMark Fire Strike
3DMark Cloud Gate
3DMark Cloud Gate
3DMark 11
3DMark 11
3DMark 11
1280x720 Performance Combined
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel UHD Graphics 620, 8550U
1880 Points ∼10% +43%
Average Intel UHD Graphics 620
  (959 - 1891, n=99)
1488 Points ∼8% +13%
Dell Latitude 7390
Intel UHD Graphics 620, 8650U
1390 Points ∼8% +6%
Dell Latitude 7490
Intel UHD Graphics 620, 8350U
1313 Points ∼7%
HP EliteBook 840 G5-3JX66EA
Intel UHD Graphics 620, 8250U
1261 Points ∼7% -4%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, 8250U
1220 Points ∼7% -7%
Average of class Office
  (169 - 4566, n=599)
1123 Points ∼6% -14%
1280x720 Performance GPU
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel UHD Graphics 620, 8550U
1901 Points ∼4% +15%
Dell Latitude 7390
Intel UHD Graphics 620, 8650U
1697 Points ∼3% +3%
Average Intel UHD Graphics 620
  (1235 - 1977, n=99)
1672 Points ∼3% +1%
HP EliteBook 840 G5-3JX66EA
Intel UHD Graphics 620, 8250U
1653 Points ∼3% 0%
Dell Latitude 7490
Intel UHD Graphics 620, 8350U
1648 Points ∼3%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, 8250U
1633 Points ∼3% -1%
Average of class Office
  (185 - 4967, n=600)
1218 Points ∼2% -26%
3DMark
1920x1080 Fire Strike Graphics
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel UHD Graphics 620, 8550U
1283 Points ∼3% +28%
Dell Latitude 7490
Intel UHD Graphics 620, 8650U
1163 Points ∼3% +16%
Average Intel UHD Graphics 620
  (557 - 1336, n=81)
1078 Points ∼3% +8%
HP EliteBook 840 G5-3JX66EA
Intel UHD Graphics 620, 8250U
1009 Points ∼2% +1%
Dell Latitude 7490
Intel UHD Graphics 620, 8350U
1001 Points ∼2%
Dell Latitude 7390
Intel UHD Graphics 620, 8650U
977 Points ∼2% -2%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, 8250U
963 Points ∼2% -4%
Average of class Office
  (138 - 4109, n=428)
937 Points ∼2% -6%
1280x720 Cloud Gate Standard Graphics
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Intel UHD Graphics 620, 8550U
10123 Points ∼5% +27%
Dell Latitude 7490
Intel UHD Graphics 620, 8650U
9730 Points ∼5% +22%
Average Intel UHD Graphics 620
  (6910 - 10493, n=87)
8813 Points ∼5% +11%
Dell Latitude 7390
Intel UHD Graphics 620, 8650U
8247 Points ∼4% +4%
HP EliteBook 840 G5-3JX66EA
Intel UHD Graphics 620, 8250U
8181 Points ∼4% +3%
Dell Latitude 7490
Intel UHD Graphics 620, 8350U
7943 Points ∼4%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, 8250U
7658 Points ∼4% -4%
Average of class Office
  (1208 - 27117, n=472)
6545 Points ∼4% -18%
1920x1080 Ice Storm Extreme Graphics
Average Intel UHD Graphics 620
  (30939 - 59483, n=28)
45012 Points ∼6%
Dell Latitude 7390
Intel UHD Graphics 620, 8650U
44697 Points ∼6%
HP EliteBook 840 G5-3JX66EA
Intel UHD Graphics 620, 8250U
42507 Points ∼6%
Average of class Office
  (8473 - 86732, n=113)
39528 Points ∼5%
Lenovo ThinkPad T480s-20L8S02D00
Intel UHD Graphics 620, 8250U
37734 Points ∼5%
3DMark 11 Performance
1797 points
3DMark Cloud Gate Standard Score
7414 points
3DMark Fire Strike Score
934 points
Help
BioShock Infinite
1920x1080 Ultra Preset, DX11 (DDOF) (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
8 fps ∼3%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
7.3 fps ∼3% -9%
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
8 fps ∼3% 0%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
7.7 fps ∼3% -4%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
10.4 fps ∼4% +30%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
10 fps ∼4% +25%
Average Intel UHD Graphics 620
  (6.2 - 11, n=81)
8.78 fps ∼3% +10%
Average of class Office
  (2.54 - 54.8, n=208)
10.2 fps ∼4% +28%
1366x768 High Preset (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
24 fps ∼8%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
21.4 fps ∼7% -11%
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
24 fps ∼8% 0%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
23.5 fps ∼8% -2%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
30.4 fps ∼10% +27%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
30 fps ∼10% +25%
Average Intel UHD Graphics 620
  (15.6 - 34.3, n=88)
26 fps ∼8% +8%
Average of class Office
  (9.17 - 128, n=301)
25.8 fps ∼8% +8%
1366x768 Medium Preset (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
35 fps ∼10%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
26 fps ∼7% -26%
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
30 fps ∼9% -14%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
28.3 fps ∼8% -19%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
36.2 fps ∼10% +3%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
35 fps ∼10% 0%
Average Intel UHD Graphics 620
  (18.3 - 40.9, n=88)
31 fps ∼9% -11%
Average of class Office
  (10.8 - 145, n=321)
29.7 fps ∼9% -15%
1280x720 Very Low Preset (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
52 fps ∼13%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
41.9 fps ∼11% -19%
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
56 fps ∼14% +8%
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
44.5 fps ∼11% -14%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
56.9 fps ∼14% +9%
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
53 fps ∼13% +2%
Average Intel UHD Graphics 620
  (32.6 - 80.3, n=88)
57.9 fps ∼15% +11%
Average of class Office
  (12.2 - 204, n=322)
52.6 fps ∼13% +1%
Metro: Last Light
1920x1080 Very High (DX11) AF:16x (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
6 fps ∼3%
Average Intel UHD Graphics 620
  (6 - 6, n=2)
6 fps ∼3% 0%
Average of class Office
  (2 - 25.8, n=24)
8.44 fps ∼5% +41%
1366x768 High (DX11) AF:16x (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
15 fps ∼8%
Average Intel UHD Graphics 620
  (13 - 15, n=2)
14 fps ∼7% -7%
Average of class Office
  (4.35 - 51.1, n=33)
14.6 fps ∼8% -3%
1366x768 Medium (DX10) AF:4x (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
23 fps ∼12%
Average Intel UHD Graphics 620
  (16.4 - 23, n=3)
20.5 fps ∼11% -11%
Average of class Office
  (8.09 - 85.9, n=34)
23.2 fps ∼12% +1%
1024x768 Low (DX10) AF:4x (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
31 fps ∼16%
Average Intel UHD Graphics 620
  (23.3 - 31, n=3)
26.4 fps ∼13% -15%
Average of class Office
  (3.6 - 56, n=41)
24.8 fps ∼13% -20%
Rise of the Tomb Raider
1920x1080 High Preset AA:FX AF:4x (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
6 fps ∼3%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
6.3 fps ∼3% +5%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
32 fps ∼17% +433%
Average Intel UHD Graphics 620
  (4.9 - 32, n=26)
7.51 fps ∼4% +25%
Average of class Office
  (4.2 - 32.9, n=55)
11.4 fps ∼6% +90%
1366x768 Medium Preset AF:2x (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
11 fps ∼5%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
10.9 fps ∼5% -1%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
49.3 fps ∼22% +348%
Average Intel UHD Graphics 620
  (6.5 - 49.3, n=39)
12.7 fps ∼6% +15%
Average of class Office
  (12.2 - 53.5, n=70)
17 fps ∼8% +55%
1024x768 Lowest Preset (sort by value)
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
17 fps ∼6%
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
18.1 fps ∼6% +6%
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
110.7 fps ∼36% +551%
Average Intel UHD Graphics 620
  (10.4 - 111, n=49)
21.5 fps ∼7% +26%
Average of class Office
  (6.2 - 111, n=94)
26.8 fps ∼9% +58%
low med. high ultra
BioShock Infinite (2013) 5235248fps
Metro: Last Light (2013) 3123156fps
Rise of the Tomb Raider (2016) 17116fps

Stress Test

As we’d expect from our previous tests, full stress sees an initial jump to max turbo frequencies of 3.6 GHz and concomitant core temperature jumps to 98 °C, but several seconds later the machine relents and we instead witness drops to around the 2.6 – 2.7 GHz range, where it remains thereafter. GPU stress by itself, meanwhile, isn’t quite as challenging for the system; clock rates are fairly consistent within the 1000 – 1100 MHz range, and temperatures reach 88 °C.

Combined stress results in temperatures quickly rocketing into the mid-90s C shortly followed by a drop in clock rates to 1.5 GHz (CPU) and 900 MHz (GPU). This is fairly common behavior for similarly-equipped machines.

Full CPU stress
Full CPU stress
Full GPU stress
Full GPU stress
Combined CPU + GPU stress
Combined CPU + GPU stress
CPU Clock (GHz) GPU Clock (MHz) Average CPU Temperature (°C) Average GPU Temperature (°C)
Prime95 Stress 2.6 - 2.7 - 78 -
FurMark Stress - 1000 - 1100 - 88
Prime95 + FurMark Stress 1.5 900 76 76

Emissions

System Noise

The internal system fan
The internal system fan

The Latitude 7490 never was a loud machine, and it’s even quieter with today’s less power-hungry configuration. By slim margins, it’s in fact the quietest machine in our field, topping out at just 40.2 dB(A) and averaging under load a mere 29.9 dB(A)—barely above the ambient noise measurement of 28.2 dB(A). Like all of its competitors, while idling, the fan rarely even engages; and even when it does, noise levels barely increase to a paltry 29.9 dB(A).

We did not detect any coil whine from our Latitude 7490 review unit.

Noise Level

Idle
28.2 / 28.2 / 28.7 dB(A)
Load
29.9 / 40.2 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: 28.2 dB(A)
Fan noise profile
Fan noise profile
Dell Latitude 7490
UHD Graphics 620, 8350U, Toshiba KSG60ZMV256G
HP EliteBook 840 G5-3JX66EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
Dell Latitude 7390
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
Lenovo ThinkPad T480s-20L8S02D00
UHD Graphics 620, 8250U, Samsung SSD PM981 MZVLB512HAJQ
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
UHD Graphics 620, 8550U, Samsung SSD PM981 MZVLB512HAJQ
Dell Latitude 7490
UHD Graphics 620, 8650U, Samsung PM961 MZVLW256HEHP
Noise
-5%
-2%
-5%
-4%
-3%
off / environment *
28.2
28.8
-2%
28.2
-0%
28.9
-2%
28.9
-2%
28.2
-0%
Idle Minimum *
28.2
28.8
-2%
28.2
-0%
28.9
-2%
28.9
-2%
28.2
-0%
Idle Average *
28.2
28.8
-2%
28.2
-0%
28.9
-2%
28.9
-2%
28.2
-0%
Idle Maximum *
28.7
33.1
-15%
28.2
2%
28.9
-1%
32.5
-13%
31.4
-9%
Load Average *
29.9
35.2
-18%
31.5
-5%
36.9
-23%
35.1
-17%
31.7
-6%
Load Maximum *
40.2
35.2
12%
42.7
-6%
38.9
3%
35.1
13%
41.2
-2%

* ... smaller is better

Temperature

The cooling system is identical to that of the 7480
The cooling system is identical to that of the 7480

Temperatures haven’t changed much since the Core i7 model, with load averages on top/bottom 35.2 °C and 37.5 °C, respectively (within a degree C of the previous measurements—though room temperatures were also a degree higher during today’s measurements, so it’s really closer to 1.5 °C or so of a drop). Idle values are actually higher, which might be an idiosyncrasy of firmware or something similar (because no other logical explanation suffices). Here, we recorded values of 28.7 °C and 32.5 °C, well above room temperatures.

Unfortunately, while stressed, most of the heat is concentrated near the rear center and right side of the device (the left side while sitting upright), so lap-based use during any sort of significant load is likely to become uncomfortable in short order.

Max. Load
 45.2 °C
113 F
40.8 °C
105 F
33 °C
91 F
 
 38.2 °C
101 F
39.8 °C
104 F
31.2 °C
88 F
 
 30 °C
86 F
30.4 °C
87 F
27.8 °C
82 F
 
Maximum: 45.2 °C = 113 F
Average: 35.2 °C = 95 F
33.6 °C
92 F
51.6 °C
125 F
48.4 °C
119 F
29.2 °C
85 F
38 °C
100 F
41 °C
106 F
28.6 °C
83 F
33 °C
91 F
34.4 °C
94 F
Maximum: 51.6 °C = 125 F
Average: 37.5 °C = 100 F
Power Supply (max.)  37.2 °C = 99 F | Room Temperature 21 °C = 70 F | Fluke 62 Mini IR Thermometer
(±) The average temperature for the upper side under maximal load is 35.2 °C / 95 F, compared to the average of 29.4 °C / 85 F for the devices in the class Office.
(-) The maximum temperature on the upper side is 45.2 °C / 113 F, compared to the average of 33.9 °C / 93 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The maximum temperature on the bottom side is 51.6 °C / 125 F, compared to the average of 36.4 °C / 98 F, ranging from 22.3 to 71.6 °C for the class Office.
(+) In idle usage, the average temperature for the upper side is 28.7 °C / 84 F, compared to the device average of 29.4 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 30.4 °C / 86.7 F and are therefore cool to the touch.
(-) The average temperature of the palmrest area of similar devices was 28.3 °C / 82.9 F (-2.1 °C / -3.8 F).
Thermal profile, idle, base unit
Thermal profile, idle, base unit
Thermal profile, idle, bottom
Thermal profile, idle, bottom
Thermal profile, max load, base unit
Thermal profile, max load, base unit
Thermal profile, max load, side
Thermal profile, max load, side
Thermal profile, max load, bottom
Thermal profile, max load, bottom

Speakers

The two down-firing, bottom-mounted speakers in the Latitude 7490 can’t hold a candle to those of the older (and thicker) Latitude 7000 models such as the 7440 and 7450, but they’re still better that most other direct competitors. Volume is merely average at 77.31 dB, but mids and highs are balanced and at least inoffensive in terms of their linearity. Bass, as always, is mostly absent.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2036.241.636.22534.73734.73134.633.634.64034.434.234.45033.233.533.2633234.1328032.233.932.210040.130.440.112544.229.244.216047.729.447.720049.427.649.425054.227.454.231556.226.856.240056.725.856.750057.425.757.463059.925.159.980064.824.564.8100068.324.468.3125062.724.262.71600672467200066.923.966.9250068.924.168.9315064.42464.4400058.623.858.6500065.223.665.2630063.823.563.8800066.223.566.21000065.323.465.31250057.723.457.71600062.223.562.2SPL77.336.377.3N40.52.740.5median 62.2median 24.2median 62.2Delta5.81.45.834.83330.328.135.438.130.332.226.631.825.827.624.725.123.926.524.833.424.141.923.94821.85120.155.318.261.117.366.61770.316.578.416.57515.868.915.770.615.467.615.569.21672.916.268.616.7701771.217.272.217.470.917.365.817.256.228.983.61.258.7median 17.2median 68.61.88.6hearing rangehide median Pink NoiseDell Latitude 7490Lenovo ThinkPad X1 Carbon 2018-20KGS03900
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Dell Latitude 7490 audio analysis

(±) | speaker loudness is average but good (77.31 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 13.6% lower than median
(±) | linearity of bass is average (10.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.9% away from median
(±) | linearity of mids is average (7.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.4% away from median
(±) | linearity of highs is average (8.8% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (16.2% difference to median)
Compared to same class
» 17% of all tested devices in this class were better, 6% similar, 77% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 21% of all tested devices were better, 5% similar, 75% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Lenovo ThinkPad X1 Carbon 2018-20KGS03900 audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 25.9% lower than median
(±) | linearity of bass is average (9.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.8% away from median
(±) | linearity of mids is average (9% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.1% away from median
(+) | highs are linear (4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.3% difference to median)
Compared to same class
» 32% of all tested devices in this class were better, 10% similar, 58% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 32% of all tested devices were better, 6% similar, 62% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Energy Management

Power Consumption

Partially because of its lack of NVMe storage, the Latitude 7490 is an extremely efficient device while idling. We measured just 4.7 W average, with min/max values of 2/5.7 W. This is the lowest of any machine we’re comparing today. Perhaps even more impressive is the measured maximum of 38.9 W—well below most other machines, and even nearly 5 W below that of its Core i7/NVMe-equipped predecessor.

Power Consumption
Off / Standbydarklight 0.3 / 0.4 Watt
Idledarkmidlight 2 / 4.7 / 5.7 Watt
Load midlight 38.4 / 38.9 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Dell Latitude 7490
8350U, UHD Graphics 620, Toshiba KSG60ZMV256G, IPS, 1920x1080, 14
HP EliteBook 840 G5-3JX66EA
8250U, UHD Graphics 620, Toshiba XG5 KXG50ZNV256G, IPS, 1920x1080, 14
Dell Latitude 7390
8650U, UHD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 13.3
Lenovo ThinkPad T480s-20L8S02D00
8250U, UHD Graphics 620, Samsung SSD PM981 MZVLB512HAJQ, IPS, 2560x1440, 14
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
8550U, UHD Graphics 620, Samsung SSD PM981 MZVLB512HAJQ, IPS, 2560x1440, 14
Dell Latitude 7490
8650U, UHD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 14
Power Consumption
-46%
-26%
-55%
-69%
-30%
Idle Minimum *
2
3.2
-60%
3.3
-65%
3.1
-55%
3.8
-90%
3.1
-55%
Idle Average *
4.7
6.6
-40%
5.9
-26%
6.8
-45%
8.9
-89%
6.5
-38%
Idle Maximum *
5.7
9.5
-67%
6.2
-9%
10.1
-77%
11.9
-109%
7.6
-33%
Load Average *
38.4
36.2
6%
43.2
-13%
48.4
-26%
47.5
-24%
43
-12%
Load Maximum *
38.9
65.6
-69%
45.2
-16%
67.1
-72%
52.5
-35%
43.8
-13%

* ... smaller is better

Battery Life

The internal 60 Wh battery
The internal 60 Wh battery

We recorded a battery runtime of 9 hours and 8 minutes in our standardized web surfing benchmark, which is slightly above competitors like the ThinkPad T480s and X1 Carbon, and well above the HP EliteBook 840 G5’s 7 hours and 27 minutes. The Latitude 7390 (with its slightly smaller screen) easily takes the cake here, however, with a terrific result of 11 hours and 4 minutes.

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3
9h 08min
Dell Latitude 7490
8350U, UHD Graphics 620, 60 Wh
HP EliteBook 840 G5-3JX66EA
8250U, UHD Graphics 620, 50 Wh
Dell Latitude 7390
8650U, UHD Graphics 620, 60 Wh
Lenovo ThinkPad T480s-20L8S02D00
8250U, UHD Graphics 620, 57 Wh
Lenovo ThinkPad X1 Carbon 2018-20KGS03900
8550U, UHD Graphics 620, 57 Wh
Dell Latitude 7490
8650U, UHD Graphics 620, 60 Wh
Battery Runtime
WiFi v1.3
548
447
-18%
664
21%
537
-2%
519
-5%
561
2%

Pros

+ durable and solid case construction
+ attractive, subdued, soft-touch exterior
+ good general system performance
+ terrific keyboard
+ greatly improved touchpad (thanks to Windows Precision drivers)
+ strong selection of ports and convenient layout
+ long battery life
+ excellent wi-fi performance and stability
+ easy maintenance
+ quiet operation

Cons

- competitors offer superior display options
- thermal design could be improved; warm while idling and under load
- speakers are weak compared to older Latitude machines
- combined system stress results in throttled performance

Verdict

The Dell Latitude 7490
The Dell Latitude 7490

Once again, we come away from a Dell Latitude 7000 series machine thoroughly impressed. Along with Lenovo’s ThinkPads and HP’s EliteBooks, the Latitudes stand head and shoulders above the rest of the business competition. They’re thoughtfully designed, smartly updated, and carefully revised. While the 7490 remains a mere iterative update to the 7480 in every sense of the term, it truly leaves little to be desired. The case is sturdy, subdued, and attractive, the weight is manageable, the input devices are top-notch, performance is very good, battery life is lengthy, and it’s a quiet companion. The few areas of improvement we’d like to see are display options to match its competitors, improved thermal management, and better speakers.

Once again, we come away from a Dell Latitude 7000 series machine thoroughly impressed. Today’s $1,709 Latitude 7490 absolutely deserves consideration by anyone in the market for a premium business laptop.

Today’s less expensive configuration lacks the Core i7, NVMe storage, touchscreen, and some of the biometric and security features of April’s review unit—but it’s also only $1,709 (as compared to over $2,000 for the previous model). Those who don’t require dual-channel memory or any of the previously listed omissions would find little to complain about in this setup. CPU performance is roughly between 10 and 15 percent below that of the Core i7-equipped unit, and GPU performance around 15 to 22 percent lower (though this is also a factor of dual-channel memory in our i7 configuration). As such, we’d suggest that upgrading to that SKU only makes sense if top-end CPU and GPU performance is of the utmost importance. Alongside the X1 Carbon, T480s, EliteBook 840 G5, and Latitude 7390, the Latitude 7490 absolutely deserves consideration by anyone in the market for a premium business laptop.

Dell Latitude 7490 - 06/21/2018 v6
Steve Schardein

Chassis
91 / 98 → 93%
Keyboard
94%
Pointing Device
72%
Connectivity
73 / 80 → 91%
Weight
68 / 20-67 → 100%
Battery
92%
Display
87%
Games Performance
57 / 68 → 84%
Application Performance
91 / 92 → 99%
Temperature
87%
Noise
96%
Audio
70%
Camera
55 / 85 → 65%
Average
79%
90%
Office - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > Dell Latitude 7490 (i5-8350U, FHD) Laptop Review
Steve Schardein, 2018-06-21 (Update: 2018-06-23)
Steve Schardein
Steve Schardein - Review Editor - @othersteve
In grade school, my first computer—an Apple IIGS—started it all for me. Later, in the nineties, if I wasn’t repairing computers for family and friends, I was busy cooking up nifty Visual Basic projects and playing PC games like Command & Conquer and Heroes of Might and Magic. Soon, much of my free time was spent moderating popular gaming forums and covering the industry for various websites. All the while, I never stopped repairing computers, and in 2006, I started a technology consulting company in Louisville, KY—Triple-S Computers—which I have been fortunate to nurture to great success by specializing in not only repairs, but also new machine consultations and purchasing, data recovery, and malware/security. And since 2012, I have proudly contributed many dozens of reviews to Notebookcheck, a site which I have long considered to be the ultimate authority on laptops and related technology. Today, I am truly living my dream: still a child at heart, ever-curious, constantly learning, and thankful to you, our readers.