Breve Análise do Portátil Dell Latitude 5491 (8750H, MX130, Touchscreen)
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Dell Latitude 5491 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Acer TravelMate P648-G2-M-73T0 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo ThinkPad T480-20L6S01V00 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo ThinkPad T480s-20L8S02E00 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Toshiba Tecra X40-E-10W (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| Average of class Office (22.7 - 198.5, n=35, last 2 years) | |
| maximum AS SSD Seq Read Test (1GB) | |
| Dell Latitude 5491 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Lenovo ThinkPad T480s-20L8S02E00 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Acer TravelMate P648-G2-M-73T0 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Toshiba Tecra X40-E-10W (Toshiba Exceria Pro M501 microSDXC 64GB) | |
| Lenovo ThinkPad T480-20L6S01V00 (Toshiba Exceria Pro SDXC 64 GB UHS-II) | |
| Average of class Office (25 - 249, n=31, last 2 years) | |
| |||||||||||||||||||||||||
iluminação: 82 %
iluminação com acumulador: 189.4 cd/m²
Contraste: 947:1 (Preto: 0.2 cd/m²)
ΔE Color 6.74 | 0.5-29.43 Ø4.91, calibrated: 4.73
ΔE Greyscale 5.5 | 0.5-98 Ø5.2
53.8% sRGB (Argyll 1.6.3 3D)
37% AdobeRGB 1998 (Argyll 1.6.3 3D)
36.96% AdobeRGB 1998 (Argyll 2.2.0 3D)
53.8% sRGB (Argyll 2.2.0 3D)
35.78% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.37
| Dell Latitude 5491 AU Optronics AUO133D B140HAK, IPS, 14", 1920x1080 | Lenovo ThinkPad T480s-20L8S02E00 LP140QH2-SPB1, IPS LED, 14", 2560x1440 | Toshiba Tecra X40-E-10W Toshiba TOS508F, IPS, 14", 1920x1080 | HP EliteBook 840 G5-3JX61EA IVO M140NVF7 R0, IPS, 14", 1920x1080 | Acer TravelMate P648-G2-M-73T0 IPS, 14", 1920x1080 | |
|---|---|---|---|---|---|
| Display | 92% | 13% | 67% | 79% | |
| Display P3 Coverage | 35.78 | 71.4 100% | 40.55 13% | 61 70% | 67.2 88% |
| sRGB Coverage | 53.8 | 96.6 80% | 61 13% | 87.7 63% | 90.8 69% |
| AdobeRGB 1998 Coverage | 36.96 | 72.1 95% | 41.9 13% | 62.1 68% | 66.4 80% |
| Response Times | 4% | 33% | 11% | 7% | |
| Response Time Grey 50% / Grey 80% * | 38.4 ? | 36 ? 6% | 22 ? 43% | 33 ? 14% | 38 ? 1% |
| Response Time Black / White * | 28.4 ? | 28 ? 1% | 22 ? 23% | 26 ? 8% | 25 ? 12% |
| PWM Frequency | 21000 ? | 3125 ? | |||
| Screen | 38% | 25% | 59% | 33% | |
| Brightness middle | 189.4 | 311 64% | 266 40% | 655 246% | 275 45% |
| Brightness | 196 | 302 54% | 244 24% | 630 221% | 253 29% |
| Brightness Distribution | 82 | 91 11% | 86 5% | 93 13% | 85 4% |
| Black Level * | 0.2 | 0.36 -80% | 0.2 -0% | 0.56 -180% | 0.25 -25% |
| Contrast | 947 | 864 -9% | 1330 40% | 1170 24% | 1100 16% |
| Colorchecker dE 2000 * | 6.74 | 3 55% | 4.61 32% | 3.27 51% | 3.49 48% |
| Colorchecker dE 2000 max. * | 25.5 | 6.1 76% | 7.46 71% | 5.92 77% | 6.77 73% |
| Colorchecker dE 2000 calibrated * | 4.73 | 1.7 64% | 3.22 32% | ||
| Greyscale dE 2000 * | 5.5 | 4 27% | 4.31 22% | 2.85 48% | 4.91 11% |
| Gamma | 2.37 93% | 2.17 101% | 2.54 87% | 2.45 90% | 2.39 92% |
| CCT | 6740 96% | 6961 93% | 6848 95% | 6065 107% | 6271 104% |
| Color Space (Percent of AdobeRGB 1998) | 37 | 66.7 80% | 39 5% | 57 54% | 59 59% |
| Color Space (Percent of sRGB) | 53.8 | 96.7 80% | 61 13% | 88 64% | 91 69% |
| Total Average (Program / Settings) | 45% /
44% | 24% /
24% | 46% /
55% | 40% /
39% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 28.4 ms ... rise ↗ and fall ↘ combined | ↗ 16.4 ms rise |  |
| ↘ 12 ms fall | ||
| The screen shows relatively slow response rates in our tests and may be too slow for gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 73 % 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 | ||
| 38.4 ms ... rise ↗ and fall ↘ combined | ↗ 18.8 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 0.165 (minimum) to 636 (maximum) ms. » 54 % 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 8705 (minimum: 5 - maximum: 343500) Hz was measured. | |||
| PCMark 8 Home Score Accelerated v2 | 4174 pontos | |
| PCMark 8 Work Score Accelerated v2 | 5428 pontos | |
| PCMark 10 Score | 4269 pontos | |
Ajuda | ||
| Dell Latitude 5491 Toshiba XG5 KXG50ZNV512G | Lenovo ThinkPad T480-20L6S01V00 Samsung SSD PM981 MZVLB512HAJQ | HP EliteBook 840 G5-3JX61EA Toshiba KXG50ZNV1T02 | Acer TravelMate P648-G2-M-73T0 SK Hynix HFS256G39TND-N210A | Dell Latitude 5490 Samsung PM961 MZVLW256HEHP | |
|---|---|---|---|---|---|
| AS SSD | -310% | 34% | -62% | -5% | |
| Copy Game MB/s | 520 | 676 30% | 905 74% | 172 -67% | 273.6 -47% |
| Copy Program MB/s | 291.5 | 254.8 -13% | 326.2 12% | 92.5 -68% | 214 -27% |
| Copy ISO MB/s | 1829 | 921 -50% | 1688 -8% | 216.6 -88% | 514 -72% |
| Score Total | 1995 | 2348 18% | 2630 32% | 969 -51% | 1834 -8% |
| Score Write | 588 | 147 -75% | 1084 84% | 283 -52% | 449 -24% |
| Score Read | 1003 | 1480 48% | 1070 7% | 456 -55% | 916 -9% |
| Access Time Write * | 0.056 | 2.515 -4391% | 0.055 2% | 0.229 -309% | 0.037 34% |
| Access Time Read * | 0.14 | 0.041 71% | 0.059 58% | 0.081 42% | 0.067 52% |
| 4K-64 Write | 445.9 | 96.2 -78% | 908 104% | 184.1 -59% | 300.9 -33% |
| 4K-64 Read | 720 | 1278 78% | 813 13% | 375.2 -48% | 793 10% |
| 4K Write | 97 | 1.76 -98% | 90 -7% | 73.7 -24% | 93.6 -4% |
| 4K Read | 22.13 | 58 162% | 26.75 21% | 30.07 36% | 45.99 108% |
| Seq Write | 449.8 | 487.1 8% | 856 90% | 248.1 -45% | 541 20% |
| Seq Read | 2612 | 1441 -45% | 2300 -12% | 511 -80% | 768 -71% |
* ... smaller is better
| 3DMark 11 Performance | 3403 pontos | |
| 3DMark Cloud Gate Standard Score | 13241 pontos | |
| 3DMark Fire Strike Score | 2303 pontos | |
Ajuda | ||
| Rise of the Tomb Raider | |
| 1024x768 Lowest Preset (sort by value) | |
| Dell Latitude 5491 | |
| Lenovo ThinkPad T480-20L6S01V00 | |
| Acer TravelMate P2510-M-51ZQ | |
| Average NVIDIA GeForce MX130 (30.7 - 51.2, n=8) | |
| 1366x768 Medium Preset AF:2x (sort by value) | |
| Dell Latitude 5491 | |
| Lenovo ThinkPad T480-20L6S01V00 | |
| Dell XPS 15 2018 i5 FHD 97Wh | |
| Average NVIDIA GeForce MX130 (22.5 - 31.3, n=8) | |
| 1920x1080 High Preset AA:FX AF:4x (sort by value) | |
| Dell Latitude 5491 | |
| Lenovo ThinkPad T480-20L6S01V00 | |
| Dell XPS 15 2018 i5 FHD 97Wh | |
| Average NVIDIA GeForce MX130 (13.2 - 16.9, n=8) | |
| 1920x1080 Very High Preset AA:FX AF:16x (sort by value) | |
| Dell Latitude 5491 | |
| Lenovo ThinkPad T480-20L6S01V00 | |
| Dell XPS 15 2018 i5 FHD 97Wh | |
| Average NVIDIA GeForce MX130 (12.1 - 14, n=7) | |
| baixo | média | alto | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 146.1 | 82.2 | 66 | 25.1 |
| Rise of the Tomb Raider (2016) | 50.7 | 31 | 16.9 | 14 |
Barulho
| Ocioso |
| 29.5 / 29.5 / 31.5 dB |
| Carga |
| 46.2 / 46.2 dB |
 | ||
30 dB silencioso 40 dB(A) audível 50 dB(A) ruidosamente alto |
||
min:  , med:  , max:  Audix TM1 (15 cm de distância) environment noise: 29.5 dB(A) | ||
| Dell Latitude 5491 GeForce MX130, i7-8850H, Toshiba XG5 KXG50ZNV512G | Dell Latitude 5490 UHD Graphics 620, i7-8650U, Samsung PM961 MZVLW256HEHP | Lenovo ThinkPad T480-20L6S01V00 GeForce MX150, i5-8550U, Samsung SSD PM981 MZVLB512HAJQ | Toshiba Tecra X40-E-10W UHD Graphics 620, i5-8250U, Samsung PM961 MZVLW256HEHP | HP EliteBook 840 G5-3JX61EA UHD Graphics 620, i5-8550U, Toshiba KXG50ZNV1T02 | Acer TravelMate P648-G2-M-73T0 HD Graphics 620, i7-7500U, SK Hynix HFS256G39TND-N210A | |
|---|---|---|---|---|---|---|
| Noise | 9% | 10% | 2% | 8% | 8% | |
| off / environment * | 29.5 | 27.8 6% | 29 2% | 30.5 -3% | 30.3 -3% | 30.6 -4% |
| Idle Minimum * | 29.5 | 27.8 6% | 29 2% | 30.5 -3% | 30.3 -3% | 30.6 -4% |
| Idle Average * | 29.5 | 27.8 6% | 29 2% | 30.5 -3% | 30.3 -3% | 30.6 -4% |
| Idle Maximum * | 31.5 | 31 2% | 29 8% | 31.2 1% | 30.3 4% | 31 2% |
| Load Average * | 46.2 | 34.2 26% | 35.6 23% | 43.9 5% | 33.8 27% | 34.5 25% |
| Load Maximum * | 46.2 | 42.7 8% | 35.6 23% | 40.1 13% | 33.8 27% | 32.4 30% |
| Witcher 3 ultra * | 32.5 |
* ... smaller is better
(-) The maximum temperature on the upper side is 48.6 °C / 119 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 62.8 °C / 145 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 31.1 °C / 88 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 °C / 84.2 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 (-1.4 °C / -2.5 F).
Dell Latitude 5491 audio analysis
(±) | speaker loudness is average but good (76.3 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 15.6% lower than median
(±) | linearity of bass is average (8.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 5.7% higher than median
(±) | linearity of mids is average (7.2% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 6.8% higher than median
(±) | linearity of highs is average (13.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (22.4% difference to median)
Compared to same class
» 56% of all tested devices in this class were better, 10% similar, 35% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 62% of all tested devices were better, 6% similar, 32% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis
(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (10.2% difference to median)
Compared to same class
» 6% of all tested devices in this class were better, 2% similar, 92% worse
» The best had a delta of 5%, average was 19%, worst was 53%
Compared to all devices tested
» 4% of all tested devices were better, 1% similar, 95% worse
» The best had a delta of 4%, average was 25%, worst was 134%
| desligado | 0.36 / 0.72 Watt |
| Ocioso | 7.5 / 9.7 / 13 Watt |
| Carga |
74.3 / 106.6 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Dell Latitude 5491 i7-8850H, GeForce MX130, Toshiba XG5 KXG50ZNV512G, IPS, 1920x1080, 14" | Lenovo ThinkPad T480-20L6S01V00 i5-8550U, GeForce MX150, Samsung SSD PM981 MZVLB512HAJQ, IPS, 1920x1080, 14" | Lenovo ThinkPad T480s-20L8S02E00 i5-8550U, GeForce MX150, Samsung SSD PM981 MZVLB512HAJQ, IPS LED, 2560x1440, 14" | Toshiba Tecra X40-E-10W i5-8250U, UHD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 14" | HP EliteBook 840 G5-3JX61EA i5-8550U, UHD Graphics 620, Toshiba KXG50ZNV1T02, IPS, 1920x1080, 14" | Dell Latitude 5490 i7-8650U, UHD Graphics 620, Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 14" | Dell XPS 15 2018 i5 FHD 97Wh i5-8300H, GeForce GTX 1050 Mobile, Lite-On CA3-8D256-Q11, LED IGZO IPS InfinityEdge, 1920x1080, 15.6" | |
|---|---|---|---|---|---|---|---|
| Power Consumption | 31% | 31% | 43% | 40% | 44% | 28% | |
| Idle Minimum * | 7.5 | 3.6 52% | 3.4 55% | 4.5 40% | 3.8 49% | 3.9 48% | 2.9 61% |
| Idle Average * | 9.7 | 7.1 27% | 7.5 23% | 8.2 15% | 8.3 14% | 6.2 36% | 5.8 40% |
| Idle Maximum * | 13 | 9.5 27% | 10.8 17% | 9.3 28% | 10.7 18% | 7.7 41% | 7.5 42% |
| Load Average * | 74.3 | 63.9 14% | 55.4 25% | 30.4 59% | 35.5 52% | 43.9 41% | 77.5 -4% |
| Load Maximum * | 106.6 | 67.3 37% | 70.3 34% | 30.4 71% | 37 65% | 47.7 55% | 107 -0% |
| Witcher 3 ultra * | 53.9 | 34 | 84 |
* ... smaller is better
| Dell Latitude 5491 i7-8850H, GeForce MX130, 68 Wh | Lenovo ThinkPad T480-20L6S01V00 i5-8550U, GeForce MX150, 72 Wh | Toshiba Tecra X40-E-10W i5-8250U, UHD Graphics 620, 48 Wh | HP EliteBook 840 G5-3JX61EA i5-8550U, UHD Graphics 620, 50 Wh | Dell Latitude 5490 i7-8650U, UHD Graphics 620, 68 Wh | Lenovo ThinkPad T480s-20L8S02E00 i5-8550U, GeForce MX150, 57 Wh | |
|---|---|---|---|---|---|---|
| Battery Runtime | 71% | -14% | -23% | 20% | 9% | |
| Reader / Idle | 1005 | 1671 66% | 1366 36% | |||
| WiFi v1.3 | 577 | 794 38% | 498 -14% | 444 -23% | 695 20% | 530 -8% |
| Load | 76 | 159 109% | 76 0% |
Pro
Contra
O Latitude 5491 com CPU i7-8550H hexa-core e Nvidia GeForce MX130 supera os modelos Latitude 5490 com CPUs ULV e gráficos integrados - às vezes substancialmente. É claro que, para se beneficiar dos dois núcleos de CPU adicionais, o aplicativo deve ser projetado para aproveitar os encadeamentos adicionais. Além do considerável aumento no desempenho, o Latitude 5491 preenche todas as caixas de seleção corretas, pois ainda é o mesmo portátil corporativo bem projetado e seguro, com excelentes dispositivos de entrada e boa ergonomia.
Dito isto, há definitivamente espaço para melhorias: o novo Latitude esquenta muito sob carga e a como resultado a sustentabilidade do turbo boost é um pouco pobre. Os ventiladores têm que trabalhar mais e o sistema é mais barulhento do que antes. A Dell também decidiu usar a mesma tela táctil FHD com a qual o Latitude 5490 está equipado. O painel deixa muito a desejar, pois o brilho é muito baixo para uso em exteriores e a precisão de cores não impressiona. Além disso, o novo portátil vem com um adaptador de energia maior e muito mais pesado, e dura menos com uma carga.
Os guerreiros da estrada que se concentram principalmente no processamento de texto, planilhas e navegação na Web provavelmente estarão em melhor situação com o Latitude 5490, que apresenta uma duração de bateria mais longa e não fica tão quente ou barulhento. Os usuários que estão satisfeitos com o desempenho que uma CPU ULV tem a oferecer também podem considerar os excelentes ThinkPad T480 ou T480s da Lenovo.
Dell Latitude 5491
- 07/30/2018 v6 (old)
Bernie Pechlaner
Price comparison
