Breve Análise do Portátil Dell Latitude 7400: Mesmo a gama alta não está livre de fraquezas
Business High End. O portátil empresarial de 14 polegadas da Dell possui uma bateria de longa duração, um excelente teclado e um SSD NVMe rápido. A tela IPS mate, no entanto, pode ter um brilho máximo maior. Além disso, o ventilador emite um zumbido agudo.
Primary Camera: 0.9 MPix
Size Comparison
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SDCardreader Transfer Speed | |
average JPG Copy Test (av. of 3 runs) | |
Dell Latitude 7400-8N6DH (Toshiba Exceria Pro M501 64 GB UHS-II) | |
Dell Latitude 7400 2-in-1 (Toshiba Exceria Pro M501 UHS-II) | |
Dell Latitude 7490 (Toshiba Exceria Pro M501 UHS-II) | |
Lenovo ThinkPad T495s-20QKS01E00 (Toshiba Exceria Pro M501 64 GB UHS-II) | |
Lenovo ThinkPad T490s-20NYS02A00 (Toshiba Exceria Pro M501) | |
Average of class Office (10.2 - 191, n=280) | |
Toshiba Tecra X40-E-10W (Toshiba Exceria Pro M501 microSDXC 64GB) | |
maximum AS SSD Seq Read Test (1GB) | |
Dell Latitude 7400 2-in-1 (Toshiba Exceria Pro M501 UHS-II) | |
Dell Latitude 7400-8N6DH (Toshiba Exceria Pro M501 64 GB UHS-II) | |
Dell Latitude 7490 (Toshiba Exceria Pro M501 UHS-II) | |
Lenovo ThinkPad T495s-20QKS01E00 (Toshiba Exceria Pro M501 64 GB UHS-II) | |
Lenovo ThinkPad T490s-20NYS02A00 (Toshiba Exceria Pro M501) | |
Toshiba Tecra X40-E-10W (Toshiba Exceria Pro M501 microSDXC 64GB) | |
Average of class Office (9.5 - 255, n=255) |
Networking | |
iperf3 Client (receive) TCP 1 m 4M x10 | |
Dell Latitude 7400 2-in-1 | |
Dell Latitude 7400-8N6DH | |
Dell Latitude 7490 | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Toshiba Tecra X40-E-10W | |
HP EliteBook 840 G5-3JX61EA | |
Average of class Office (5 - 1334, n=226) | |
HP EliteBook 745 G5 3UN74EA | |
iperf3 Client (transmit) TCP 1 m 4M x10 | |
Lenovo ThinkPad T490s-20NYS02A00 | |
HP EliteBook 840 G5-3JX61EA | |
Dell Latitude 7400-8N6DH | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Toshiba Tecra X40-E-10W | |
Dell Latitude 7400 2-in-1 | |
HP EliteBook 745 G5 3UN74EA | |
Dell Latitude 7490 | |
Average of class Office (34 - 1176, n=226) |
|
iluminação: 91 %
iluminação com acumulador: 290 cd/m²
Contraste: 1806:1 (Preto: 0.16 cd/m²)
ΔE Color 4.7 | 0.6-29.43 Ø6, calibrated: 1.3
ΔE Greyscale 6.4 | 0.64-98 Ø6.2
95.1% sRGB (Argyll 3D) 61.2% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.54
Dell Latitude 7400-8N6DH IPS, 1920x1080, 14 | Dell Latitude 7490 IPS, 1920x1080, 14 | Lenovo ThinkPad X1 Carbon 2019-20QES01L00 IPS, 1920x1080, 14 | HP EliteBook 745 G5 3UN74EA IPS LED, 1920x1080, 14 | HP EliteBook 840 G5-3JX61EA IPS, 1920x1080, 14 | Lenovo ThinkPad T490s-20NYS02A00 IPS, 1920x1080, 14 | Toshiba Tecra X40-E-10W IPS, 1920x1080, 14 | Lenovo ThinkPad X1 Carbon 2019-20QE000VGE IPS, 2560x1440, 14 | |
---|---|---|---|---|---|---|---|---|
Response Times | 24% | 28% | 39% | 39% | -1% | 53% | 41% | |
Response Time Grey 50% / Grey 80% * | 62 (29.6, 32.4) | 41.6 (22, 19.6) 33% | 44.8 (21.2, 23.6) 28% | 35 (17, 18) 44% | 33 (15, 18) 47% | 61.6 (30.8, 30.8) 1% | 22 (12, 10) 65% | 33.6 (16.4, 17.2) 46% |
Response Time Black / White * | 37.6 (21.2, 16.4) | 32 (16.4, 15.6) 15% | 27.6 (15.6, 12) 27% | 25 (15, 10) 34% | 26 (15, 11) 31% | 38.8 (21.2, 17.6) -3% | 22 (12, 10) 41% | 24 (12.4, 11.6) 36% |
PWM Frequency | 3125 (90) | 21000 (90) | ||||||
Screen | -14% | 3% | 6% | -7% | 13% | -10% | -17% | |
Brightness middle | 289 | 308.6 7% | 381 32% | 421 46% | 655 127% | 391 35% | 266 -8% | 338 17% |
Brightness | 286 | 294 3% | 375 31% | 398 39% | 630 120% | 389 36% | 244 -15% | 315 10% |
Brightness Distribution | 91 | 89 -2% | 94 3% | 86 -5% | 93 2% | 87 -4% | 86 -5% | 88 -3% |
Black Level * | 0.16 | 0.23 -44% | 0.24 -50% | 0.27 -69% | 0.56 -250% | 0.23 -44% | 0.2 -25% | 0.43 -169% |
Contrast | 1806 | 1342 -26% | 1588 -12% | 1559 -14% | 1170 -35% | 1700 -6% | 1330 -26% | 786 -56% |
Colorchecker DeltaE2000 * | 4.7 | 6.07 -29% | 4.6 2% | 4.08 13% | 3.27 30% | 3.4 28% | 4.61 2% | 4 15% |
Colorchecker DeltaE2000 max. * | 8.7 | 10.58 -22% | 8.5 2% | 7.48 14% | 5.92 32% | 4.7 46% | 7.46 14% | 7.9 9% |
Colorchecker DeltaE2000 calibrated * | 1.3 | 1.67 -28% | 1.2 8% | 3.22 -148% | 1.1 15% | 1.7 -31% | ||
Greyscale DeltaE2000 * | 6.4 | 7.3 -14% | 5.1 20% | 2.92 54% | 2.85 55% | 4 37% | 4.31 33% | 6.2 3% |
Gamma | 2.54 87% | 2.061 107% | 2.52 87% | 2.32 95% | 2.45 90% | 2.49 88% | 2.54 87% | 2.13 103% |
CCT | 5977 109% | 7269 89% | 7052 92% | 7043 92% | 6065 107% | 6809 95% | 6848 95% | 6787 96% |
Color Space (Percent of AdobeRGB 1998) | 61.2 | 62 1% | 60.7 -1% | 57 -7% | 57 -7% | 62.4 2% | 39 -36% | 68.1 11% |
Color Space (Percent of sRGB) | 95.1 | 97 2% | 95.7 1% | 87 -9% | 88 -7% | 97.4 2% | 61 -36% | 97.8 3% |
Total Average (Program / Settings) | 5% /
-8% | 16% /
7% | 23% /
12% | 16% /
-0% | 6% /
11% | 22% /
0% | 12% /
-8% |
* ... smaller is better
Display Response Times
↔ Response Time Black to White | ||
---|---|---|
37.6 ms ... rise ↗ and fall ↘ combined | ↗ 21.2 ms rise | |
↘ 16.4 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. » 94 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (24.8 ms). | ||
↔ Response Time 50% Grey to 80% Grey | ||
62 ms ... rise ↗ and fall ↘ combined | ↗ 29.6 ms rise | |
↘ 32.4 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. » 96 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (39.4 ms). |
Screen Flickering / PWM (Pulse-Width Modulation)
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 9355 (minimum: 43 - maximum: 142900) Hz was measured. |
Cinebench R15 | |
CPU Single 64Bit | |
Dell Latitude 7400-8N6DH | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Average Intel Core i7-8665U (143 - 199, n=6) | |
Dell Latitude 7400 2-in-1 | |
HP EliteBook 840 G5-3JX61EA | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7490 | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Toshiba Tecra X40-E-10W | |
HP EliteBook 745 G5 3UN74EA | |
Average of class Office (20 - 199, n=538) | |
CPU Multi 64Bit | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7400-8N6DH | |
Lenovo ThinkPad T495s-20QKS01E00 | |
HP EliteBook 745 G5 3UN74EA | |
Average Intel Core i7-8665U (496 - 701, n=6) | |
Dell Latitude 7490 | |
HP EliteBook 840 G5-3JX61EA | |
Dell Latitude 7400 2-in-1 | |
Toshiba Tecra X40-E-10W | |
Average of class Office (36 - 1050, n=545) |
Cinebench R10 | |
Rendering Single 32Bit | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U (6716 - 7028, n=2) | |
Dell Latitude 7400 2-in-1 | |
HP EliteBook 840 G5-3JX61EA | |
Toshiba Tecra X40-E-10W | |
Average of class Office (667 - 8356, n=681) | |
Rendering Multiple CPUs 32Bit | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U (16602 - 20251, n=2) | |
HP EliteBook 840 G5-3JX61EA | |
Dell Latitude 7400 2-in-1 | |
Toshiba Tecra X40-E-10W | |
Average of class Office (1242 - 32009, n=669) |
Cinebench R20 | |
CPU (Single Core) | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U (412 - 472, n=4) | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Average of class Office (79 - 472, n=31) | |
CPU (Multi Core) | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U (1267 - 1530, n=4) | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Average of class Office (143 - 2272, n=31) |
Geekbench 3 | |
32 Bit Multi-Core Score | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U | |
HP EliteBook 840 G5-3JX61EA | |
Toshiba Tecra X40-E-10W | |
Average of class Office (1016 - 14277, n=191) | |
32 Bit Single-Core Score | |
HP EliteBook 840 G5-3JX61EA | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U | |
Toshiba Tecra X40-E-10W | |
Average of class Office (595 - 4820, n=191) |
Geekbench 4.4 | |
64 Bit Multi-Core Score | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
HP EliteBook 840 G5-3JX61EA | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Average Intel Core i7-8665U (11206 - 18275, n=4) | |
Dell Latitude 7400-8N6DH | |
Toshiba Tecra X40-E-10W | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Dell Latitude 7400 2-in-1 | |
Average of class Office (1736 - 21722, n=82) | |
64 Bit Single-Core Score | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U (4686 - 5574, n=4) | |
HP EliteBook 840 G5-3JX61EA | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7400 2-in-1 | |
Toshiba Tecra X40-E-10W | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Average of class Office (957 - 5574, n=82) |
Geekbench 5 | |
64 Bit Multi-Core Score | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Average of class Office (2096 - 3453, n=4) | |
64 Bit Single-Core Score | |
Dell Latitude 7400-8N6DH | |
Average Intel Core i7-8665U | |
Average of class Office (839 - 1196, n=4) | |
Lenovo ThinkPad T495s-20QKS01E00 |
Mozilla Kraken 1.1 - Total Score | |
Average of class Office (872 - 9672, n=252) | |
HP EliteBook 745 G5 3UN74EA (Edge) | |
Lenovo ThinkPad T495s-20QKS01E00 (Edge 44.18362.1.0) | |
Dell Latitude 7490 (Microsoft Edge 42.17134.1.0) | |
Lenovo ThinkPad T490s-20NYS02A00 (Edge 44) | |
Dell Latitude 7400 2-in-1 (Microsoft Edge 44.18362.1.0) | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE (Edge 44.18362.1.0) | |
Average Intel Core i7-8665U (1016 - 1136, n=4) | |
Dell Latitude 7400-8N6DH (Edge 44) |
Octane V2 - Total Score | |
Dell Latitude 7400-8N6DH (Edge 44) | |
Average Intel Core i7-8665U (30142 - 36667, n=4) | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE (Edge 44.18362.1.0) | |
Lenovo ThinkPad T490s-20NYS02A00 (Edge 44) | |
Dell Latitude 7400 2-in-1 (Microsoft Edge 44.18362.1.0) | |
Dell Latitude 7490 (Microsoft Edge 42.17134.1.0) | |
Lenovo ThinkPad T495s-20QKS01E00 (Edge 44.18362.1.0) | |
HP EliteBook 745 G5 3UN74EA (Edge) | |
Average of class Office (3727 - 49795, n=245) |
JetStream 1.1 - Total Score | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE (Edge 44.18362.1.0) | |
Average Intel Core i7-8665U (242 - 290, n=4) | |
HP EliteBook 840 G5-3JX61EA (Edge 42) | |
Dell Latitude 7400-8N6DH (Edge 44) | |
Toshiba Tecra X40-E-10W (Edge 42) | |
Dell Latitude 7490 (Microsoft Edge 42.17134.1.0) | |
Lenovo ThinkPad T495s-20QKS01E00 (Edge 44.18362.1.0) | |
HP EliteBook 745 G5 3UN74EA (Edge) | |
Average of class Office (36.7 - 290, n=248) |
* ... smaller is better
PCMark 8 Home Score Accelerated v2 | 3547 pontos | |
PCMark 8 Creative Score Accelerated v2 | 3715 pontos | |
PCMark 8 Work Score Accelerated v2 | 5195 pontos | |
Ajuda |
PCMark 8 | |
Work Score Accelerated v2 | |
Dell Latitude 7400-8N6DH | |
Lenovo ThinkPad T495s-20QKS01E00 | |
HP EliteBook 840 G5-3JX61EA | |
Average Intel Core i7-8665U, Intel UHD Graphics 620 (4696 - 5195, n=4) | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7490 | |
Dell Latitude 7400 2-in-1 | |
Toshiba Tecra X40-E-10W | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
HP EliteBook 745 G5 3UN74EA | |
Average of class Office (1226 - 5428, n=350) | |
Home Score Accelerated v2 | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Lenovo ThinkPad T495s-20QKS01E00 | |
HP EliteBook 840 G5-3JX61EA | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Average Intel Core i7-8665U, Intel UHD Graphics 620 (3547 - 4211, n=5) | |
Dell Latitude 7490 | |
Dell Latitude 7400 2-in-1 | |
Dell Latitude 7400-8N6DH | |
Toshiba Tecra X40-E-10W | |
HP EliteBook 745 G5 3UN74EA | |
Average of class Office (1169 - 4770, n=410) |
Dell Latitude 7400-8N6DH Samsung SSD PM981 MZVLB512HAJQ | Lenovo ThinkPad X1 Carbon 2019-20QE000VGE WDC PC SN720 SDAQNTW-512G | HP EliteBook 745 G5 3UN74EA Toshiba XG5 KXG50ZNV256G | HP EliteBook 840 G5-3JX61EA Toshiba KXG50ZNV1T02 | Toshiba Tecra X40-E-10W Samsung PM961 MZVLW256HEHP | Dell Latitude 7490 Toshiba KSG60ZMV256G | Lenovo ThinkPad T490s-20NYS02A00 Intel SSD Pro 7600p SSDPEKKF512G8L | Average Samsung SSD PM981 MZVLB512HAJQ | |
---|---|---|---|---|---|---|---|---|
CrystalDiskMark 5.2 / 6 | 26% | -32% | -20% | -23% | -60% | -9% | 0% | |
Write 4K | 118.6 | 196.91 66% | 119.5 1% | 96.09 -19% | 100.1 -16% | 79.41 -33% | 122.03 3% | 124 (90.4 - 174, n=54) 5% |
Read 4K | 44.68 | 51.33 15% | 31.9 -29% | 31.12 -30% | 40.03 -10% | 27.37 -39% | 45.56 2% | 43.5 (28 - 61.3, n=53) -3% |
Write Seq | 1866 | 1714.6 -8% | 351.1 -81% | 919.3 -51% | 1259 -33% | 343.9 -82% | 1497.34 -20% | 1565 (112 - 2714, n=53) -16% |
Read Seq | 2173 | 2464.05 13% | 1665 -23% | 2089 -4% | 1296 -40% | 472.7 -78% | 2385.23 10% | 1702 (501 - 2665, n=53) -22% |
Write 4K Q32T1 | 330.9 | 429.09 30% | 268.4 -19% | 425.6 29% | 228.1 -31% | 206 -38% | 240.94 -27% | 413 (198 - 1707, n=54) 25% |
Read 4K Q32T1 | 343.1 | 542.46 58% | 333.1 -3% | 275.3 -20% | 292.9 -15% | 188.3 -45% | 338.03 -1% | 414 (230 - 1015, n=54) 21% |
Write Seq Q32T1 | 1927 | 2520.8 31% | 351.8 -82% | 958.3 -50% | 1286 -33% | 343.3 -82% | 1528.4 -21% | 1983 (1714 - 2994, n=54) 3% |
Read Seq Q32T1 | 3528 | 3481.3 -1% | 2705 -23% | 3118 -12% | 3411 -3% | 532.6 -85% | 2915 -17% | 3064 (1772 - 3562, n=54) -13% |
3DMark 06 Standard | 11053 pontos | |
3DMark 11 Performance | 1979 pontos | |
3DMark Ice Storm Standard Score | 61551 pontos | |
3DMark Cloud Gate Standard Score | 8736 pontos | |
3DMark Fire Strike Score | 1075 pontos | |
3DMark Time Spy Score | 448 pontos | |
Ajuda |
3DMark 11 - 1280x720 Performance GPU | |
Lenovo ThinkPad T495s-20QKS01E00 | |
HP EliteBook 745 G5 3UN74EA | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Dell Latitude 7400-8N6DH (Dual-Channel) | |
HP EliteBook 840 G5-3JX61EA | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7400-8N6DH | |
Dell Latitude 7400 2-in-1 | |
Average Intel UHD Graphics 620 (1235 - 2006, n=174) | |
Toshiba Tecra X40-E-10W | |
Dell Latitude 7490 | |
Average of class Office (185 - 5332, n=662) |
3DMark | |
Night Raid Graphics Score | |
Dell Latitude 7400-8N6DH (Dual-Channel) | |
Average of class Office (1849 - 9887, n=13) | |
Average Intel UHD Graphics 620 (4284 - 6093, n=10) | |
Dell Latitude 7400-8N6DH | |
2560x1440 Time Spy Graphics | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Average of class Office (76 - 1158, n=56) | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Dell Latitude 7400-8N6DH (Dual-Channel) | |
Dell Latitude 7400-8N6DH | |
Average Intel UHD Graphics 620 (299 - 431, n=34) | |
1920x1080 Fire Strike Graphics | |
Lenovo ThinkPad T495s-20QKS01E00 | |
HP EliteBook 745 G5 3UN74EA | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
HP EliteBook 840 G5-3JX61EA | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7400-8N6DH (Dual-Channel) | |
Dell Latitude 7400 2-in-1 | |
Dell Latitude 7400-8N6DH | |
Average Intel UHD Graphics 620 (557 - 1401, n=143) | |
Toshiba Tecra X40-E-10W | |
Average of class Office (138 - 4109, n=481) | |
Dell Latitude 7490 | |
1280x720 Cloud Gate Standard Graphics | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Dell Latitude 7400-8N6DH (Dual-Channel) | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
HP EliteBook 745 G5 3UN74EA | |
HP EliteBook 840 G5-3JX61EA | |
Dell Latitude 7400 2-in-1 | |
Dell Latitude 7400-8N6DH | |
Average Intel UHD Graphics 620 (6910 - 11436, n=161) | |
Toshiba Tecra X40-E-10W | |
Dell Latitude 7490 | |
Average of class Office (1208 - 27117, n=527) |
baixo | média | alto | ultra | ||
Tomb Raider (2013) | 87.8 | 44.3 | 27 | 12.5 | fps |
BioShock Infinite (2013) | 60.9 | 34.3 | 26.7 | 8.5 | fps |
The Witcher 3 (2015) | 15.8 | 9.3 | 5.4 | 3 | fps |
Dota 2 Reborn (2015) | 73 | 42.9 | 19.5 | 17.3 | fps |
X-Plane 11.11 (2018) | 23.1 | 15 | 13.4 | fps |
BioShock Infinite - 1280x720 Very Low Preset | |
Lenovo ThinkPad T495s-20QKS01E00 | |
HP EliteBook 745 G5 3UN74EA | |
Dell Latitude 7400-8N6DH (Dual-Channel) | |
HP EliteBook 840 G5-3JX61EA | |
Dell Latitude 7400-8N6DH | |
Average Intel UHD Graphics 620 (18.3 - 90.2, n=160) | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Average of class Office (12.2 - 208, n=374) | |
Dell Latitude 7400 2-in-1 | |
Dell Latitude 7490 | |
Toshiba Tecra X40-E-10W |
Tomb Raider - 1024x768 Low Preset | |
Dell Latitude 7400-8N6DH | |
Average Intel UHD Graphics 620 (24.3 - 104, n=14) | |
Average of class Office (11.8 - 183, n=228) |
Dota 2 Reborn - 1280x720 min (0/3) fastest | |
Lenovo ThinkPad T490s-20NYS02A00 | |
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE | |
Lenovo ThinkPad T495s-20QKS01E00 | |
Dell Latitude 7400-8N6DH | |
Average Intel UHD Graphics 620 (60.4 - 86, n=28) | |
Average of class Office (21.3 - 131, n=53) |
Barulho
Ocioso |
| 28.6 / 28.6 / 29.1 dB |
Carga |
| 31.5 / 36.9 dB |
![]() | ||
30 dB silencioso 40 dB(A) audível 50 dB(A) ruidosamente alto |
||
min: ![]() ![]() ![]() |
Dell Latitude 7400-8N6DH 8665U, UHD Graphics 620 | Dell Latitude 7490 8350U, UHD Graphics 620 | Lenovo ThinkPad X1 Carbon 2019-20QE000VGE 8665U, UHD Graphics 620 | HP EliteBook 745 G5 3UN74EA 2700U, Vega 10 | HP EliteBook 840 G5-3JX61EA 8550U, UHD Graphics 620 | Toshiba Tecra X40-E-10W 8250U, UHD Graphics 620 | Lenovo ThinkPad T490s-20NYS02A00 8265U, UHD Graphics 620 | |
---|---|---|---|---|---|---|---|
Noise | 0% | 3% | -6% | -4% | -13% | -2% | |
off / environment * | 28.6 | 28.2 1% | 28.4 1% | 30.5 -7% | 30.3 -6% | 30.5 -7% | 29.4 -3% |
Idle Minimum * | 28.6 | 28.2 1% | 28.4 1% | 30.5 -7% | 30.3 -6% | 30.5 -7% | 29.4 -3% |
Idle Average * | 28.6 | 28.2 1% | 28.4 1% | 30.5 -7% | 30.3 -6% | 30.5 -7% | 29.4 -3% |
Idle Maximum * | 29.1 | 28.7 1% | 28.6 2% | 30.5 -5% | 30.3 -4% | 31.2 -7% | 30.9 -6% |
Load Average * | 31.5 | 29.9 5% | 31.5 -0% | 36 -14% | 33.8 -7% | 43.9 -39% | 33.3 -6% |
Load Maximum * | 36.9 | 40.2 -9% | 33.1 10% | 36 2% | 33.8 8% | 40.1 -9% | 33.3 10% |
* ... smaller is better
(±) The maximum temperature on the upper side is 42.4 °C / 108 F, compared to the average of 34 °C / 93 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The bottom heats up to a maximum of 47.1 °C / 117 F, compared to the average of 36.4 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 23.9 °C / 75 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 30.7 °C / 87.3 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 (-2.6 °C / -4.7 F).
Dell Latitude 7400-8N6DH 8665U, UHD Graphics 620 | Dell Latitude 7490 8350U, UHD Graphics 620 | Lenovo ThinkPad X1 Carbon 2019-20QE000VGE 8665U, UHD Graphics 620 | HP EliteBook 745 G5 3UN74EA 2700U, Vega 10 | HP EliteBook 840 G5-3JX61EA 8550U, UHD Graphics 620 | Toshiba Tecra X40-E-10W 8250U, UHD Graphics 620 | Lenovo ThinkPad T490s-20NYS02A00 8265U, UHD Graphics 620 | |
---|---|---|---|---|---|---|---|
Heat | -23% | -2% | -2% | 18% | -6% | 0% | |
Maximum Upper Side * | 42.4 | 45.2 -7% | 47.9 -13% | 38.4 9% | 33.4 21% | 44 -4% | 43.3 -2% |
Maximum Bottom * | 47.1 | 51.6 -10% | 45.9 3% | 35.8 24% | 32.7 31% | 47.2 -0% | 45.1 4% |
Idle Upper Side * | 24.5 | 31.8 -30% | 24.6 -0% | 29.8 -22% | 22.2 9% | 27.3 -11% | 25 -2% |
Idle Bottom * | 25.2 | 36 -43% | 24.4 3% | 29.7 -18% | 22.3 12% | 27.8 -10% | 25 1% |
* ... smaller is better
Dell Latitude 7400-8N6DH audio analysis
(±) | speaker loudness is average but good (78.3 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.5% lower than median
(±) | linearity of bass is average (8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.5% away from median
(±) | linearity of mids is average (7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.2% higher than median
(±) | linearity of highs is average (7.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.7% difference to median)
Compared to same class
» 16% of all tested devices in this class were better, 4% similar, 80% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 18% of all tested devices were better, 4% similar, 78% worse
» The best had a delta of 3%, average was 21%, worst was 53%
Lenovo ThinkPad X1 Carbon 2019-20QE000VGE audio analysis
(±) | speaker loudness is average but good (76.8 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.2% lower than median
(±) | linearity of bass is average (7.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.1% higher than median
(+) | mids are linear (5.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.9% away from median
(±) | linearity of highs is average (9.1% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (14.4% difference to median)
Compared to same class
» 11% of all tested devices in this class were better, 4% similar, 86% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 12% of all tested devices were better, 3% similar, 84% worse
» The best had a delta of 3%, average was 21%, worst was 53%
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Dell Latitude 7400-8N6DH 8665U, UHD Graphics 620 | Dell Latitude 7490 8350U, UHD Graphics 620 | Lenovo ThinkPad X1 Carbon 2019-20QE000VGE 8665U, UHD Graphics 620 | HP EliteBook 745 G5 3UN74EA 2700U, Vega 10 | HP EliteBook 840 G5-3JX61EA 8550U, UHD Graphics 620 | Toshiba Tecra X40-E-10W 8250U, UHD Graphics 620 | Lenovo ThinkPad T490s-20NYS02A00 8265U, UHD Graphics 620 | |
---|---|---|---|---|---|---|---|
Power Consumption | 30% | 3% | -6% | -1% | 4% | 10% | |
Idle Minimum * | 3.9 | 2 49% | 3 23% | 4.9 -26% | 3.8 3% | 4.5 -15% | 2.62 33% |
Idle Average * | 6.1 | 4.7 23% | 6.3 -3% | 8.1 -33% | 8.3 -36% | 8.2 -34% | 5.16 15% |
Idle Maximum * | 8.2 | 5.7 30% | 8.9 -9% | 10.6 -29% | 10.7 -30% | 9.3 -13% | 8.7 -6% |
Load Average * | 41 | 38.4 6% | 40.8 -0% | 32.2 21% | 35.5 13% | 30.4 26% | 40 2% |
Load Maximum * | 69.7 | 38.9 44% | 67.5 3% | 42.3 39% | 37 47% | 30.4 56% | 64 8% |
* ... smaller is better
Dell Latitude 7400-8N6DH 8665U, UHD Graphics 620, 60 Wh | Lenovo ThinkPad X1 Carbon 2019-20QE000VGE 8665U, UHD Graphics 620, 51 Wh | HP EliteBook 745 G5 3UN74EA 2700U, Vega 10, 50 Wh | HP EliteBook 840 G5-3JX61EA 8550U, UHD Graphics 620, 50 Wh | Toshiba Tecra X40-E-10W 8250U, UHD Graphics 620, 48 Wh | Dell Latitude 7490 8350U, UHD Graphics 620, 60 Wh | Dell Latitude 7400 2-in-1 8665U, UHD Graphics 620, 78 Wh | Lenovo ThinkPad X1 Carbon 2019-20QES01L00 8565U, UHD Graphics 620, 51 Wh | Lenovo ThinkPad T490s-20NYS02A00 8265U, UHD Graphics 620, 57 Wh | Lenovo ThinkPad T495s-20QKS01E00 PRO 3700U, Vega 10, 57 Wh | Average of class Office | |
---|---|---|---|---|---|---|---|---|---|---|---|
Battery Runtime | -34% | -42% | -36% | -28% | -21% | 5% | -28% | -15% | -8% | -39% | |
Reader / Idle | 639 | 572 (101 - 1857, n=800) | |||||||||
H.264 | 862 | 586 -32% | 426 -51% | 688 -20% | 834 -3% | 750 -13% | 437 (139 - 862, n=184) -49% | ||||
WiFi v1.3 | 696 | 493 -29% | 394 -43% | 444 -36% | 498 -28% | 548 -21% | 732 5% | 562 -19% | 607 -13% | 675 -3% | 417 (105 - 1104, n=356) -40% |
Load | 141 | 83 -41% | 95 -33% | 76 -46% | 99 -30% | 101 (37 - 259, n=755) -28% |
Pro
Contra
O Dell Latitude 7400 é um pouco mais compacto e mais leve que o seu predecessor. O dispositivo ganha atratividade devido à sua tela com marcos estreitos. As entranhas estão em conformidade com as últimas tendências do setor. Um processador quad-core Whiskey Lake fornece energia computacional suficiente para aplicativos de Office e de Internet. No entanto, todo o seu potencial só pode ser desbloqueado no modo de CA. No modo bateria, a CPU mal usa seu turbo, se é que chega a fazê-lo. Esse é o preço que você paga pela boa duração da bateria.
Com o Latitude 7400, a Dell fornece um portátil comercial de gama alta que não está isento de fraquezas.
Um veloz SSD NVMe garante um sistema ágil. É possível substituir o SSD No entanto, para isso, a carcaça teria que ser aberta. Um destaque do portátil, em nossa opinião, é o teclado. Este é um dos melhores teclados que vimos até agora. Obviamente, uma iluminação por tecla (dois níveis) está a bordo.
a tela IPS mate ganha pontos com ângulos de visão estáveis, bom contraste, uma representação de cores decente de fábrica e uma boa cobertura do espaço de cores. O brilho da tela é bom, mas deveria ser melhor para um portátil nessa faixa de preço. Assim, o portátil não pode realmente ser usado em exteriores.
A porta Thunderbolt 3 permite a conexão de soluções docking e/ou uma GPU externa poderosa. Obviamente, a porta suporta Power Delivery 3.0 e DisplayPort sobre USB-C (isso requer um adaptador separado). Infelizmente, o ventilador emite um assobio.
Dell Latitude 7400-8N6DH - 09/19/2019 v7
Sascha Mölck