Breve Análise do Portátil Dell Latitude 7390 (i5-8350U, SSD 256 GB)
Negócios Inteligentes. A Dell está atualizando seus subportáteis de negócios da série 7000 com as atuais CPUs Kaby Lake Refresh e equipou o 7390 com um slot para cartão inteligente, além de outros recursos de segurança. Nosso extenso teste avalia se, além de ter uma duração de bateria muito longa, a tela, as conexões e os dispositivos de entrada também podem suportar as exigências de um profissional.
Size Comparison
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| SDCardreader Transfer Speed | |
| average JPG Copy Test (av. of 3 runs) | |
| Dell Latitude 7390 (Toshiba Exceria Pro M501) | |
| Dell Latitude 13 7380 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Toshiba Portege X30-D (PT274U-01N001) (Toshiba Exceria Pro M401) | |
| Average of class Office (of 199, min: 16.5, max: 191) | |
| Asus Zenbook UX3430UQ-GV012T (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Dell Latitude 7390 (Toshiba Exceria Pro M501) | |
| Toshiba Portege X30-D (PT274U-01N001) (Toshiba Exceria Pro M401) | |
| Dell Latitude 13 7380 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Average of class Office (of 178, min: 9.5, max: 255) | |
| Asus Zenbook UX3430UQ-GV012T | |
| Networking | |
| iperf3 Client (receive) TCP 1 m 4M x10 | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| HP EliteBook x360 1030 G2 | |
| Dell Latitude 7390 | |
| Dell Latitude 13 7380 | |
| Asus Zenbook UX3430UQ-GV012T | |
| Average of class Office (of 133, min: 5, max: 688) | |
| iperf3 Client (transmit) TCP 1 m 4M x10 | |
| Asus Zenbook UX3430UQ-GV012T | |
| Dell Latitude 13 7380 | |
| Dell Latitude 7390 | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| HP EliteBook x360 1030 G2 | |
| Average of class Office (of 133, min: 34, max: 688) | |
| |||||||||||||||||||||||||
iluminação: 92 %
iluminação com acumulador: 332 cd/m²
Contraste: 1316:1 (Preto: 0.25 cd/m²)
ΔE Color 4.3 | 0.8-29.43 Ø6.4, calibrated: 2.5
ΔE Greyscale 3.6 | 0.64-98 Ø6.6
90.6% sRGB (Argyll) 59.1% AdobeRGB 1998 (Argyll)
Gamma: 2.43
| Dell Latitude 7390 AU Optronics AUO462D / B133HAN [DELL P/N:F7VDJ], , 1920x1080, 13.3 | Asus Zenbook UX3430UQ-GV012T Chi Mei CMN14D2 / N140HCE-EN1, , 1920x1080, 14 | HP EliteBook x360 1030 G2 CMN1374, , 1920x1080, 13.3 | Toshiba Portege X30-D (PT274U-01N001) Toshiba TOS508F, , 1920x1080, 13.3 | Dell Latitude 13 7380 LGD0589, , 1920x1080, 13.3 | |
|---|---|---|---|---|---|
| Response Times | 19% | 5% | 21% | 23% | |
| Response Time Grey 50% / Grey 80% * | 48.8 (24.8, 24) | 40 (20, 20) 18% | 55.2 (21.2, 34) -13% | 36.8 (18.8, 18) 25% | 34 (17.2, 16.8) 30% |
| Response Time Black / White * | 35.2 (21.2, 14) | 28 (17, 11) 20% | 27.2 (7.6, 19.6) 23% | 29.6 (17.2, 12.4) 16% | 29.6 (17.2, 12.4) 16% |
| PWM Frequency | |||||
| Screen | 1% | -19% | 7% | -25% | |
| Brightness middle | 329 | 353 7% | 262 -20% | 332.6 1% | 317 -4% |
| Brightness | 316 | 366 16% | 256 -19% | 323 2% | 295 -7% |
| Brightness Distribution | 92 | 88 -4% | 83 -10% | 86 -7% | 87 -5% |
| Black Level * | 0.25 | 0.34 -36% | 0.25 -0% | 0.28 -12% | 0.3 -20% |
| Contrast | 1316 | 1038 -21% | 1048 -20% | 1188 -10% | 1057 -20% |
| Colorchecker DeltaE2000 * | 4.3 | 2.88 33% | 5.13 -19% | 2.6 40% | 6.3 -47% |
| Colorchecker DeltaE2000 max. * | 7.8 | 6.61 15% | 9.46 -21% | 6.7 14% | 10.4 -33% |
| Colorchecker DeltaE2000 calibrated * | 2.5 | ||||
| Greyscale DeltaE2000 * | 3.6 | 4.24 -18% | 6.23 -73% | 2.5 31% | 7.8 -117% |
| Gamma | 2.43 99% | 2.38 101% | 2.45 98% | 2.12 113% | 1.81 133% |
| CCT | 6928 94% | 7380 88% | 6413 101% | 6720 97% | 7120 91% |
| Color Space (Percent of AdobeRGB 1998) | 59.1 | 64 8% | 57.84 -2% | 62 5% | 61 3% |
| Color Space (Percent of sRGB) | 90.6 | 99 9% | 88.57 -2% | 94 4% | 92 2% |
| Total Average (Program / Settings) | 10% /
4% | -7% /
-15% | 14% /
9% | -1% /
-17% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 35.2 ms ... rise ↗ and fall ↘ combined | ↗ 21.2 ms rise |  |
| ↘ 14 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. » 90 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (26.2 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 48.8 ms ... rise ↗ and fall ↘ combined | ↗ 24.8 ms rise |  |
| ↘ 24 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. » 80 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (42 ms). | ||
Screen Flickering / PWM (Pulse-Width Modulation)
| Screen flickering / PWM not detected |  | ||
In comparison: 54 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 10377 (minimum: 43 - maximum: 588200) Hz was measured. | |||
| Cinebench R15 | |
| CPU Single 64Bit | |
| Dell Latitude 13 7380 | |
| Dell Latitude 7390 | |
| Average Intel Core i5-8350U (of 4, min: 142, max: 152) | |
| HP EliteBook x360 1030 G2 | |
| Asus Zenbook UX3430UQ-GV012T | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| Average of class Office (of 439, min: 20, max: 178) | |
| CPU Multi 64Bit | |
| Dell Latitude 7390 | |
| Average Intel Core i5-8350U (of 4, min: 501, max: 625) | |
| Dell Latitude 13 7380 | |
| HP EliteBook x360 1030 G2 | |
| Asus Zenbook UX3430UQ-GV012T | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| Average of class Office (of 443, min: 36, max: 736) | |
| PCMark 8 | |
| Work Score Accelerated v2 | |
| Dell Latitude 13 7380 | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| Asus Zenbook UX3430UQ-GV012T | |
| HP EliteBook x360 1030 G2 | |
| Average Intel Core i5-8350U, Intel UHD Graphics 620 (of 3, min: 4764, max: 4774) | |
| Dell Latitude 7390 | |
| Average of class Office (of 277, min: 1226, max: 5200) | |
| Home Score Accelerated v2 | |
| Asus Zenbook UX3430UQ-GV012T | |
| Dell Latitude 13 7380 | |
| HP EliteBook x360 1030 G2 | |
| Average Intel Core i5-8350U, Intel UHD Graphics 620 (of 3, min: 3600, max: 3776) | |
| Dell Latitude 7390 | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| Average of class Office (of 317, min: 1169, max: 4458) | |
| PCMark 8 Home Score Accelerated v2 | 3600 pontos | |
| PCMark 8 Work Score Accelerated v2 | 4768 pontos | |
Ajuda | ||
| Dell Latitude 7390 SK hynix SC311 M.2 | Asus Zenbook UX3430UQ-GV012T SanDisk SD8SN8U512G1002 | HP EliteBook x360 1030 G2 Sandisk SD8TN8U-256G-1006 | Toshiba Portege X30-D (PT274U-01N001) Samsung PM961 MZVLW256HEHP | Average SK hynix SC311 M.2 | |
|---|---|---|---|---|---|
| CrystalDiskMark 3.0 | 5% | -1% | 129% | 1% | |
| Write 4k QD32 | 254.5 | 251.1 -1% | 225.2 -12% | 535.7 110% | 267 (of 2, min: 255, max: 280) 5% |
| Read 4k QD32 | 284.4 | 311.3 9% | 311.3 9% | 625.5 120% | 284 (of 2, min: 283, max: 284) 0% |
| Write 4k | 64.67 | 56.85 -12% | 56.48 -13% | 143.6 122% | 68.3 (of 2, min: 64.7, max: 71.8) 6% |
| Read 4k | 27.63 | 28.34 3% | 29.43 7% | 40.9 48% | 27.2 (of 2, min: 26.7, max: 27.6) -2% |
| Write 512 | 322.6 | 415 29% | 372.5 15% | 762.9 136% | 323 (of 2, min: 323, max: 323) 0% |
| Read 512 | 354.6 | 345.6 -3% | 312.3 -12% | 857.6 142% | 365 (of 2, min: 355, max: 374) 3% |
| Write Seq | 413.4 | 457.4 11% | 443.6 7% | 1213 193% | 401 (of 2, min: 389, max: 413) -3% |
| Read Seq | 493.4 | 500.2 1% | 467.1 -5% | 1270 157% | 494 (of 2, min: 493, max: 496) 0% |
| 3DMark 11 - 1280x720 Performance GPU | |
| Asus Zenbook UX3430UQ-GV012T | |
| Average Intel UHD Graphics 620 (of 63, min: 1366, max: 1915) | |
| Dell Latitude 13 7380 | |
| Dell Latitude 7390 | |
| HP EliteBook x360 1030 G2 | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| Average of class Office (of 563, min: 185, max: 4967) | |
| 3DMark | |
| 1920x1080 Fire Strike Graphics | |
| Asus Zenbook UX3430UQ-GV012T | |
| Average Intel UHD Graphics 620 (of 58, min: 819, max: 1336) | |
| HP EliteBook x360 1030 G2 | |
| Dell Latitude 7390 | |
| Dell Latitude 13 7380 | |
| Average of class Office (of 400, min: 138, max: 4109) | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| 1280x720 Cloud Gate Standard Graphics | |
| Average Intel UHD Graphics 620 (of 60, min: 6910, max: 10493) | |
| Asus Zenbook UX3430UQ-GV012T | |
| HP EliteBook x360 1030 G2 | |
| Dell Latitude 7390 | |
| Dell Latitude 13 7380 | |
| Toshiba Portege X30-D (PT274U-01N001) | |
| Average of class Office (of 444, min: 1208, max: 27117) | |
| 3DMark 11 Performance | 1755 pontos | |
| 3DMark Cloud Gate Standard Score | 7618 pontos | |
| 3DMark Fire Strike Score | 901 pontos | |
Ajuda | ||
| baixo | média | alto | ultra | ||
| Rise of the Tomb Raider (2016) | 19.6 | fps | |||
| Farming Simulator 17 (2016) | 51.2 | 19.7 | fps | ||
| Final Fantasy XV Benchmark (2018) | 8.8 | fps |
Barulho
| Ocioso |
| 29.5 / 29.5 / 29.5 dB |
| Carga |
| 32.4 / 39.9 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: 29.5 dB(A) | ||
Dell Latitude 7390 audio analysis
(+) | speakers can play relatively loud (83.1 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 22.5% lower than median
(±) | linearity of bass is average (10.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5% higher than median
(+) | mids are linear (4.7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.8% higher than median
(+) | highs are linear (6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (20% difference to median)
Compared to same class
» 48% of all tested devices in this class were better, 9% similar, 42% worse
» The best had a delta of 8%, average was 20%, worst was 51%
Compared to all devices tested
» 42% of all tested devices were better, 8% similar, 50% worse
» The best had a delta of 3%, average was 21%, worst was 53%
Asus Zenbook UX3430UQ-GV012T audio analysis
(±) | speaker loudness is average but good (75 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 18.9% lower than median
(±) | linearity of bass is average (12.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.4% away from median
(+) | mids are linear (6.9% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.7% away from median
(+) | highs are linear (5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.2% difference to median)
Compared to same class
» 52% of all tested devices in this class were better, 6% similar, 41% worse
» The best had a delta of 9%, average was 19%, worst was 47%
Compared to all devices tested
» 33% of all tested devices were better, 6% similar, 61% worse
» The best had a delta of 3%, average was 21%, worst was 53%
HP EliteBook x360 1030 G2 audio analysis
(+) | speakers can play relatively loud (86.3 dB)
Analysis not possible as minimum curve is missing or too high
Toshiba Portege X30-D (PT274U-01N001) audio analysis
(±) | speaker loudness is average but good (77.04 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.7% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.6% away from median
(+) | mids are linear (6.8% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.5% away from median
(±) | linearity of highs is average (9.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.2% difference to median)
Compared to same class
» 27% of all tested devices in this class were better, 9% similar, 64% worse
» The best had a delta of 8%, average was 20%, worst was 51%
Compared to all devices tested
» 27% of all tested devices were better, 7% similar, 67% worse
» The best had a delta of 3%, average was 21%, worst was 53%
Dell Latitude 13 7380 audio analysis
(-) | not very loud speakers (70.93 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 12.8% lower than median
(±) | linearity of bass is average (12.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 1.9% away from median
(±) | linearity of mids is average (7.2% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.5% away from median
(±) | linearity of highs is average (12.1% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.7% difference to median)
Compared to same class
» 39% of all tested devices in this class were better, 9% similar, 52% worse
» The best had a delta of 8%, average was 20%, worst was 51%
Compared to all devices tested
» 36% of all tested devices were better, 6% similar, 58% worse
» The best had a delta of 3%, average was 21%, worst was 53%
| desligado | 0.26 / 0.38 Watt |
| Ocioso | 2.34 / 5.6 / 6.5 Watt |
| Carga |
43 / 67.4 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Dell Latitude 7390 8350U, UHD Graphics 620, SK hynix SC311 M.2, IPS, 1920x1080, 13.3 | Asus Zenbook UX3430UQ-GV012T 7500U, GeForce 940MX, SanDisk SD8SN8U512G1002, IPS, 1920x1080, 14 | HP EliteBook x360 1030 G2 7300U, HD Graphics 620, Sandisk SD8TN8U-256G-1006, IPS, 1920x1080, 13.3 | Toshiba Portege X30-D (PT274U-01N001) 7600U, HD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 13.3 | Dell Latitude 13 7380 7600U, HD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 13.3 | |
|---|---|---|---|---|---|
| Power Consumption | 4% | 7% | -11% | 11% | |
| Idle Minimum * | 2.34 | 2.6 -11% | 3.2 -37% | 4.6 -97% | 3.2 -37% |
| Idle Average * | 5.6 | 5.9 -5% | 5.5 2% | 7.6 -36% | 5.5 2% |
| Idle Maximum * | 6.5 | 6.25 4% | 6.5 -0% | 8.2 -26% | 6.1 6% |
| Load Average * | 43 | 42 2% | 29.7 31% | 23.8 45% | 29.5 31% |
| Load Maximum * | 67.4 | 46 32% | 41.3 39% | 28 58% | 32 53% |
* ... smaller is better
| Dell Latitude 7390 8350U, UHD Graphics 620, 60 Wh | Asus Zenbook UX3430UQ-GV012T 7500U, GeForce 940MX, 50 Wh | HP EliteBook x360 1030 G2 7300U, HD Graphics 620, 57 Wh | Toshiba Portege X30-D (PT274U-01N001) 7600U, HD Graphics 620, 48 Wh | Dell Latitude 13 7380 7600U, HD Graphics 620, 60 Wh | Average of class Office | |
|---|---|---|---|---|---|---|
| Battery Runtime | -9% | 46% | -7% | 25% | -34% | |
| Reader / Idle | 1660 | 1292 -22% | 1387 -16% | 898 -46% | 1594 -4% | 551 (of 751, min: 101, max: 1857) -67% |
| H.264 | 749 | 659 -12% | 408 (of 137, min: 139, max: 791) -46% | |||
| Load | 92 | 97 5% | 244 165% | 121 32% | 141 53% | 101 (of 693, min: 37, max: 259) 10% |
| WiFi v1.3 | 527 | 630 | 430 | 630 | 402 (of 253, min: 105, max: 964) |
Pro
Contra
Com o novo Latitude 7390, a Dell fez quase tudo certo. Por, não tão altos, 1400 Euros (~$1732) para o modelo que testamos, você recebe um pacote completo com apenas alguns pontos fracos.
Devemos mencionar aqui o teclado um pouco pequeno, mas que na maioria das vezes é bem-sucedido, as medíocres teclas do mouse, a falta do Thunderbolt 3 e a ruidosa tecla de espaço. É um erro de projeto menor que a tampa levanta a base a partir de um ângulo de abertura acima de 135 °. A única coisa que realmente não gostamos foi o som detestável e o sensor de digitais sub-ótimo.
Não apenas os pontos da lista dos "Pros" são mais numerosos, mas principalmente os mais importantes. Mesmo com o seu i5-8350U, o Latitude é um pouco exagerado para tarefas de escritório, dado que a duração da bateria ainda está em um nível alto, dizemos que mais energia nunca faz mal. A carcaça de design simples, mas de alta qualidade, os dispositivos de entrada bons a muito bons, o equipamento de segurança completo, as conexões sensatas, a tela de alto contraste, o Windows 10 Pro e, finalmente, os 3 anos de garantia junto com a operação silenciosa, merecem uma recomendação de compra clara.
Dell Latitude 7390 - 04/05/2018 v6
Sven Kloevekorn