Breve Análise do Portátil Dell Latitude 7390 (Core i7-8650U, Touchscreen)
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 (Toshiba Exceria Pro M501) | |
| Dell Latitude 7390 (Toshiba Exceria Pro M501) | |
| Dell Latitude 7390 (Toshiba Exceria Pro M501 UHS-II) | |
| Dell Latitude 13 7380 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Asus ZenBook 13 UX331UN (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| Average of class Office (22.7 - 198.5, n=34, last 2 years) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Lenovo ThinkPad X1 Carbon 2018-20KGS03900 (Toshiba Exceria Pro M501) | |
| Dell Latitude 7390 (Toshiba Exceria Pro M501 UHS-II) | |
| Dell Latitude 7390 (Toshiba Exceria Pro M501) | |
| Dell Latitude 13 7380 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Asus ZenBook 13 UX331UN (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| Average of class Office (25 - 249, n=30, last 2 years) | |
| |||||||||||||||||||||||||
iluminação: 86 %
iluminação com acumulador: 303.8 cd/m²
Contraste: 980:1 (Preto: 0.31 cd/m²)
ΔE Color 2.9 | 0.5-29.43 Ø4.91, calibrated: 1.72
ΔE Greyscale 3.7 | 0.5-98 Ø5.2
95% sRGB (Argyll 1.6.3 3D)
63% AdobeRGB 1998 (Argyll 1.6.3 3D)
67.8% AdobeRGB 1998 (Argyll 2.2.0 3D)
95.1% sRGB (Argyll 2.2.0 3D)
67.8% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.118
| Dell Latitude 7390 LGD059B, IPS, 13.3", 1920x1080 | Dell Latitude 7390 AU Optronics AUO462D / B133HAN [DELL P/N:F7VDJ], IPS, 13.3", 1920x1080 | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 B140QAN02.0, IPS, 14", 2560x1440 | HP Elitebook 1040 G4-2XU40UT Chi Mei CMN14D7, IPS, 14", 1920x1080 | Asus ZenBook 13 UX331UN AU Optronics B133HAN04.9, IPS, 13.3", 1920x1080 | |
|---|---|---|---|---|---|
| Display | -4% | 27% | 1% | -7% | |
| Display P3 Coverage | 67.8 | 65.1 -4% | 87.7 29% | 66.8 -1% | 63.3 -7% |
| sRGB Coverage | 95.1 | 90.8 -5% | 100 5% | 97.1 2% | 86.7 -9% |
| AdobeRGB 1998 Coverage | 67.8 | 65.9 -3% | 99.9 47% | 69 2% | 63.4 -6% |
| Response Times | -25% | -37% | 4% | 1% | |
| Response Time Grey 50% / Grey 80% * | 36.8 ? | 48.8 ? -33% | 59.2 ? -61% | 34.4 ? 7% | 44 ? -20% |
| Response Time Black / White * | 30.4 ? | 35.2 ? -16% | 34.4 ? -13% | 30 ? 1% | 24 ? 21% |
| PWM Frequency | 26040 ? | ||||
| Screen | -5% | 35% | -1% | -3% | |
| Brightness middle | 303.8 | 329 8% | 578 90% | 295.9 -3% | 329 8% |
| Brightness | 289 | 316 9% | 533 84% | 287 -1% | 306 6% |
| Brightness Distribution | 86 | 92 7% | 84 -2% | 87 1% | 86 0% |
| Black Level * | 0.31 | 0.25 19% | 0.38 -23% | 0.23 26% | 0.3 3% |
| Contrast | 980 | 1316 34% | 1521 55% | 1287 31% | 1097 12% |
| Colorchecker dE 2000 * | 2.9 | 4.3 -48% | 1.9 34% | 2.83 2% | 4.07 -40% |
| Colorchecker dE 2000 max. * | 5.79 | 7.8 -35% | 3.8 34% | 7.34 -27% | 7.05 -22% |
| Colorchecker dE 2000 calibrated * | 1.72 | 2.5 -45% | 0.8 53% | ||
| Greyscale dE 2000 * | 3.7 | 3.6 3% | 3 19% | 5.2 -41% | 2.76 25% |
| Gamma | 2.118 104% | 2.43 91% | 2.14 103% | 2.28 96% | 2.56 86% |
| CCT | 6323 103% | 6928 94% | 6377 102% | 7056 92% | 6915 94% |
| Color Space (Percent of AdobeRGB 1998) | 63 | 59.1 -6% | 88.8 41% | 63 0% | 56 -11% |
| Color Space (Percent of sRGB) | 95 | 90.6 -5% | 100 5% | 97 2% | 86 -9% |
| Total Average (Program / Settings) | -11% /
-8% | 8% /
25% | 1% /
0% | -3% /
-3% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 30.4 ms ... rise ↗ and fall ↘ combined | ↗ 18.8 ms rise |  |
| ↘ 11.6 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 81 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (20.9 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 36.8 ms ... rise ↗ and fall ↘ combined | ↗ 18 ms rise |  |
| ↘ 18.8 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.165 (minimum) to 636 (maximum) ms. » 49 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 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 8702 (minimum: 5 - maximum: 343500) Hz was measured. | |||
| wPrime 2.10 - 1024m | |
| Average of class Office (194.4 - 2103, n=6, last 2 years) | |
| Dell Latitude 13 7380 | |
| HP Elitebook 1040 G4-2XU40UT | |
| Average Intel Core i7-8650U (268 - 335, n=3) | |
| Dell Latitude 7390 | |
* ... smaller is better
| PCMark 8 Home Score Accelerated v2 | 3886 pontos | |
| PCMark 8 Creative Score Accelerated v2 | 5083 pontos | |
| PCMark 8 Work Score Accelerated v2 | 5197 pontos | |
| PCMark 10 Score | 4053 pontos | |
Ajuda | ||
| Dell Latitude 7390 Samsung PM961 MZVLW256HEHP | Dell Latitude 7390 SK hynix SC311 M.2 | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 Samsung SSD PM981 MZVLB512HAJQ | HP Elitebook 1040 G4-2XU40UT Toshiba XG4 NVMe (THNSN5512GPUK) | Average Samsung PM961 MZVLW256HEHP | |
|---|---|---|---|---|---|
| AS SSD | -53% | 90% | -3% | -81% | |
| Copy Game MB/s | 352 | 1107 214% | 394.2 12% | 537 ? 53% | |
| Copy Program MB/s | 247.4 | 460.2 86% | 133.7 -46% | 343 ? 39% | |
| Copy ISO MB/s | 818 | 1247 52% | 534 -35% | 1004 ? 23% | |
| Score Total | 2215 | 857 -61% | 3529 59% | 2299 4% | 2565 ? 16% |
| Score Write | 501 | 311 -38% | 1801 259% | 848 69% | 587 ? 17% |
| Score Read | 1158 | 359 -69% | 1168 1% | 979 -15% | 1378 ? 19% |
| Access Time Write * | 0.032 | 0.056 -75% | 0.027 16% | 0.038 -19% | 0.4637 ? -1349% |
| Access Time Read * | 0.063 | 0.075 -19% | 0.029 54% | 0.105 -67% | 0.06777 ? -8% |
| 4K-64 Write | 302.4 | 210.3 -30% | 1529 406% | 662 119% | 419 ? 39% |
| 4K-64 Read | 932 | 282.8 -70% | 876 -6% | 782 -16% | 1112 ? 19% |
| 4K Write | 115.2 | 63.6 -45% | 134.3 17% | 100.1 -13% | 91.6 ? -20% |
| 4K Read | 49.43 | 27.31 -45% | 52.4 6% | 38.49 -22% | 45.1 ? -9% |
| Seq Write | 830 | 369.9 -55% | 1376 66% | 863 4% | 960 ? 16% |
| Seq Read | 1761 | 485.5 -72% | 2396 36% | 1585 -10% | 2019 ? 15% |
* ... smaller is better
| 3DMark 06 Standard Score | 10376 pontos | |
| 3DMark 11 Performance | 1860 pontos | |
| 3DMark Ice Storm Standard Score | 65709 pontos | |
| 3DMark Cloud Gate Standard Score | 7770 pontos | |
| 3DMark Fire Strike Score | 915 pontos | |
Ajuda | ||
| baixo | média | alto | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 56 | 30 | 24 | 8 |
Barulho
| Ocioso |
| 28.2 / 28.2 / 28.2 dB |
| Carga |
| 31.5 / 42.7 dB |
 | ||
30 dB silencioso 40 dB(A) audível 50 dB(A) ruidosamente alto |
||
min:  , med:  , max:  Audix TM1, Arta (15 cm de distância) environment noise: 28.2 dB(A) | ||
| Dell Latitude 7390 UHD Graphics 620, i7-8650U, Samsung PM961 MZVLW256HEHP | Dell Latitude 7390 UHD Graphics 620, i5-8350U, SK hynix SC311 M.2 | Dell Latitude 13 7380 HD Graphics 620, i7-7600U, Samsung PM961 MZVLW256HEHP | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 UHD Graphics 620, i5-8550U, Samsung SSD PM981 MZVLB512HAJQ | HP Elitebook 1040 G4-2XU40UT HD Graphics 630, i7-7820HQ, Toshiba XG4 NVMe (THNSN5512GPUK) | Asus ZenBook 13 UX331UN GeForce MX150, i5-8550U, SK Hynix HFS256G39TND-N210A | |
|---|---|---|---|---|---|---|
| Noise | -3% | 3% | -2% | 2% | -8% | |
| off / environment * | 28.2 | 29.5 -5% | 28 1% | 28.9 -2% | 28.2 -0% | 30.13 -7% |
| Idle Minimum * | 28.2 | 29.5 -5% | 28 1% | 28.9 -2% | 28.2 -0% | 30.13 -7% |
| Idle Average * | 28.2 | 29.5 -5% | 28 1% | 28.9 -2% | 28.2 -0% | 30.3 -7% |
| Idle Maximum * | 28.2 | 29.5 -5% | 29.6 -5% | 32.5 -15% | 28.2 -0% | 30.3 -7% |
| Load Average * | 31.5 | 32.4 -3% | 30.6 3% | 35.1 -11% | 33.3 -6% | 39.2 -24% |
| Load Maximum * | 42.7 | 39.9 7% | 35.4 17% | 35.1 18% | 35.3 17% | 41 4% |
* ... smaller is better
(±) The maximum temperature on the upper side is 44.4 °C / 112 F, compared to the average of 34.3 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(-) The bottom heats up to a maximum of 47.4 °C / 117 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 21.9 °C / 71 F, compared to the device average of 29.5 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 29.4 °C / 84.9 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 27.6 °C / 81.7 F (-1.8 °C / -3.2 F).
Dell Latitude 7390 audio analysis
(-) | not very loud speakers (71.4 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 12.4% lower than median
(±) | linearity of bass is average (13.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.4% away from median
(±) | linearity of mids is average (10.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.1% away from median
(±) | linearity of highs is average (12.6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (20.4% difference to median)
Compared to same class
» 41% of all tested devices in this class were better, 10% similar, 49% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 50% of all tested devices were better, 8% similar, 42% worse
» The best had a delta of 4%, average was 25%, worst was 134%
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 (18.7% difference to median)
Compared to same class
» 30% of all tested devices in this class were better, 6% similar, 64% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 39% of all tested devices were better, 8% similar, 53% worse
» The best had a delta of 4%, average was 25%, worst was 134%
| Ocioso | 3.3 / 5.9 / 6.2 Watt |
| Carga |
43.2 / 45.2 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Dell Latitude 7390 i7-8650U, UHD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 13.3" | Dell Latitude 7390 i5-8350U, UHD Graphics 620, SK hynix SC311 M.2, IPS, 1920x1080, 13.3" | Dell Latitude 13 7380 i7-7600U, HD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 13.3" | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 i5-8550U, UHD Graphics 620, Samsung SSD PM981 MZVLB512HAJQ, IPS, 2560x1440, 14" | HP Elitebook 1040 G4-2XU40UT i7-7820HQ, HD Graphics 630, Toshiba XG4 NVMe (THNSN5512GPUK), IPS, 1920x1080, 14" | Asus ZenBook 13 UX331UN i5-8550U, GeForce MX150, SK Hynix HFS256G39TND-N210A, IPS, 1920x1080, 13.3" | |
|---|---|---|---|---|---|---|
| Power Consumption | -4% | 15% | -37% | -37% | 7% | |
| Idle Minimum * | 3.3 | 2.34 29% | 3.2 3% | 3.8 -15% | 5.1 -55% | 2.2 33% |
| Idle Average * | 5.9 | 5.6 5% | 5.5 7% | 8.9 -51% | 7 -19% | 5 15% |
| Idle Maximum * | 6.2 | 6.5 -5% | 6.1 2% | 11.9 -92% | 11.7 -89% | 8 -29% |
| Load Average * | 43.2 | 43 -0% | 29.5 32% | 47.5 -10% | 41.2 5% | 33 24% |
| Load Maximum * | 45.2 | 67.4 -49% | 32 29% | 52.5 -16% | 56.9 -26% | 49.4 -9% |
* ... smaller is better
| Dell Latitude 7390 i7-8650U, UHD Graphics 620, 60 Wh | Dell Latitude 7390 i5-8350U, UHD Graphics 620, 60 Wh | Dell Latitude 13 7380 i7-7600U, HD Graphics 620, 60 Wh | Lenovo ThinkPad X1 Carbon 2018-20KGS03900 i5-8550U, UHD Graphics 620, 57 Wh | HP Elitebook 1040 G4-2XU40UT i7-7820HQ, HD Graphics 630, 67 Wh | Asus ZenBook 13 UX331UN i5-8550U, GeForce MX150, 50 Wh | |
|---|---|---|---|---|---|---|
| Battery Runtime | -5% | -22% | 0% | -19% | ||
| WiFi v1.3 | 664 | 630 -5% | 519 -22% | 665 0% | 538 -19% | |
| Reader / Idle | 1660 | 1594 | 1328 | 1349 | 1240 | |
| Load | 92 | 141 | 106 | 96 | 105 |
Pro
Contra
Nossa lista de reclamações encolheu desde a análise do Latitude 7390 do mês passado, parcialmente graças a diferenças de configuração com a unidade de teste de hoje, e parcialmente apenas porque alguns desses itens podem ser um produto de idiossincrasias das próprias máquinas individuais. A atualização para um Core i7 certamente traz consigo algumas vantagens de desempenho - principalmente durante cargas sustentadas, onde as velocidades não são apenas melhores, mas também mais consistentes, no geral. No entanto, para a grande maioria dos usuários, o Core i5 é mais do que poderoso e a redução de custos pode torná-lo uma opção mais atraente. Grande parte da mesma lógica se aplica ao SSD NVMe (versus a opção convencional M.2 SATA que vimos na unidade de teste Latitude 7390 do mês passado) que é mais rápido, mas também gera mais calor e tem um preço maior. Mais surpreendentemente, no entanto, a tela táctil antirreflexo nesta configuração é verdadeiramente antirreflexo; não traz pontos negativos em comparação ao painel convencional (não táctil) do mês passado.
É certamente caro, mas há poucos outros portáteis em sua classe, tão impressionantes quanto o Latitude 7390.
A longa lista de pros ainda se aplica. O 7390 possui um acabamento impecável e uma construção robusta, ao mesmo tempo em que tem dimensões pequenas e é leve. A manutenção é fácil graças à tampa inferior removível. A seleção completa de portas e as opções de segurança robustas serão apreciadas pelos guerreiros da estrada empresariais e pelos departamentos de TI corporativos. O teclado e o touchpad, da unidade de teste atual, foram muito bons no geral e o painel da tela continua atraente, apesar das diferenças nos componentes introduzidos pela capacidade de toque. Finalmente, o dispositivo permanece em silêncio na maior parte do tempo, e os tempos de duração da bateria são longos. Acrescente uma garantia de 3 anos no local e você tem um concorrente muito forte dentro do segmento empresarial.
A $2.197, certamente é caro, mas há poucos outros portáteis em sua classe, tão impressionantes quanto o Latitude 7390. O Lenovo X1 Carbon e o HP EliteBook Folio 1040 G1 da HP, são provavelmente os principais concorrentes - mas seria difícil errar com qualquer uma dessas máquinas, honestamente.
Dell Latitude 7390
- 05/10/2018 v6 (old)
Steve Schardein
Price comparison
