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MagyarBreve Análise do Portátil HP EliteBook 840 G4 (7200U, Full HD)
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Lenovo ThinkPad T470s-20HGS00V00 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| HP EliteBook 840 G4-Z2V49ET ABD | |
| Fujitsu LifeBook U747 | |
| HP EliteBook 840 G3 T9X59ET#ABD | |
| maximum AS SSD Seq Read Test (1GB) | |
| Lenovo ThinkPad T470s-20HGS00V00 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| HP EliteBook 840 G4-Z2V49ET ABD | |
| HP EliteBook 840 G3 T9X59ET#ABD | |
| Fujitsu LifeBook U747 | |
| Networking | |
| iperf3 transmit AX12 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| HP EliteBook 840 G4-Z2V49ET ABD (jseb) | |
| Fujitsu LifeBook U747 | |
| Lenovo ThinkPad T470s-20HGS00V00 | |
| iperf3 receive AX12 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| Fujitsu LifeBook U747 | |
| Lenovo ThinkPad T470s-20HGS00V00 | |
| HP EliteBook 840 G4-Z2V49ET ABD (jseb) | |
| |||||||||||||||||||||||||
iluminação: 86 %
iluminação com acumulador: 346 cd/m²
Contraste: 402:1 (Preto: 0.86 cd/m²)
ΔE Color 8.64 | 0.5-29.43 Ø5
ΔE Greyscale 11.24 | 0.57-98 Ø5.3
80% sRGB (Argyll 1.6.3 3D)
52% AdobeRGB 1998 (Argyll 1.6.3 3D)
57.7% AdobeRGB 1998 (Argyll 2.2.0 3D)
80.7% sRGB (Argyll 2.2.0 3D)
55.8% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.62
| HP EliteBook 840 G4-Z2V49ET ABD AUO123D, , 1920x1080, 14.00 | Lenovo ThinkPad T470-20HD002HGE N140HCA-EAB, , 1920x1080, 14.00 | Lenovo ThinkPad T470s-20HGS00V00 B140QAN01.5, , 2560x1440, 14.00 | Fujitsu LifeBook U747 LG LP140WF3, , 1920x1080, 14.00 | HP EliteBook Folio 1040 G3 AUO1136, , 2560x1440, 14.00 | HP EliteBook 840 G3 T9X59ET#ABD Chi Mei CMN14C0, , 1920x1080, 14.00 | |
|---|---|---|---|---|---|---|
| Display | -24% | 21% | 10% | 21% | -11% | |
| Display P3 Coverage | 55.8 | 41.6 -25% | 69 24% | 66.1 18% | 67.9 22% | 48.93 -12% |
| sRGB Coverage | 80.7 | 61.9 -23% | 95.1 18% | 84.8 5% | 96.8 20% | 73.7 -9% |
| AdobeRGB 1998 Coverage | 57.7 | 43.06 -25% | 69.6 21% | 62 7% | 70 21% | 50.5 -12% |
| Response Times | -28% | -22% | 4% | -17% | -10% | |
| Response Time Grey 50% / Grey 80% * | 39 ? | 41.6 ? -7% | 46.4 ? -19% | 36 ? 8% | 46.4 ? -19% | 43 ? -10% |
| Response Time Black / White * | 23 ? | 34 ? -48% | 28.8 ? -25% | 23.2 ? -1% | 26.4 ? -15% | 25 ? -9% |
| PWM Frequency | 204 ? | |||||
| Screen | 23% | 39% | 33% | 38% | 4% | |
| Brightness middle | 346 | 306 -12% | 327 -5% | 291 -16% | 327 -5% | 366 6% |
| Brightness | 317 | 287 -9% | 311 -2% | 296 -7% | 316 0% | 336 6% |
| Brightness Distribution | 86 | 88 2% | 88 2% | 84 -2% | 87 1% | 87 1% |
| Black Level * | 0.86 | 0.3 65% | 0.25 71% | 0.32 63% | 0.35 59% | 0.65 24% |
| Contrast | 402 | 1020 154% | 1308 225% | 909 126% | 934 132% | 563 40% |
| Colorchecker dE 2000 * | 8.64 | 6.2 28% | 6.1 29% | 4.3 50% | 4.39 49% | 10.26 -19% |
| Colorchecker dE 2000 max. * | 13.58 | 13.6 -0% | 12.2 10% | 7.5 45% | 7.27 46% | |
| Greyscale dE 2000 * | 11.24 | 5.8 48% | 8.8 22% | 4.3 62% | 4.69 58% | 11.51 -2% |
| Gamma | 2.62 84% | 2.04 108% | 2.18 101% | 2.31 95% | 2.15 102% | 2.4 92% |
| CCT | 12530 52% | 6277 104% | 6172 105% | 6529 100% | 7101 92% | 12725 51% |
| Color Space (Percent of AdobeRGB 1998) | 52 | 39.62 -24% | 61.56 18% | 55.46 7% | 62.52 20% | 47 -10% |
| Color Space (Percent of sRGB) | 80 | 61.44 -23% | 94.88 19% | 84.77 6% | 96.71 21% | 74 -7% |
| Total Average (Program / Settings) | -10% /
7% | 13% /
27% | 16% /
25% | 14% /
27% | -6% /
-1% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 23 ms ... rise ↗ and fall ↘ combined | ↗ 6 ms rise |  |
| ↘ 17 ms fall | ||
| The screen shows good response rates in our tests, but may be too slow for competitive gamers. In comparison, all tested devices range from 0.1 (minimum) to 240 (maximum) ms. » 45 % of all devices are better. This means that the measured response time is similar to the average of all tested devices (21.5 ms). | ||
| ↔ Response Time 50% Grey to 80% Grey | ||
| 39 ms ... rise ↗ and fall ↘ combined | ↗ 20 ms rise |  |
| ↘ 19 ms fall | ||
| The screen shows slow response rates in our tests and will be unsatisfactory for gamers. In comparison, all tested devices range from 0.2 (minimum) to 636 (maximum) ms. » 53 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (33.8 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 17942 (minimum: 5 - maximum: 3846000) Hz was measured. | ||
| PCMark 8 Home Score Accelerated v2 | 3486 pontos | |
| PCMark 8 Creative Score Accelerated v2 | 4352 pontos | |
| PCMark 8 Work Score Accelerated v2 | 4572 pontos | |
Ajuda | ||
| HP EliteBook 840 G4-Z2V49ET ABD Samsung PM961 MZVLW256HEHP | Lenovo ThinkPad T470-20HD002HGE Samsung PM961 NVMe MZVLW512HMJP | Lenovo ThinkPad T470s-20HGS00V00 Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0) | Fujitsu LifeBook U747 Samsung MZYTY256HDHP | HP EliteBook Folio 1040 G3 Samsung SM951 MZVPV256HDGL m.2 PCI-e | HP EliteBook 840 G3 T9X59ET#ABD Samsung SSD PM851 256 GB MZNTE256HMHP | |
|---|---|---|---|---|---|---|
| CrystalDiskMark 3.0 | -10% | 12% | -50% | 9% | -56% | |
| Read Seq | 1819 | 1155 -37% | 1760 -3% | 504 -72% | 1649 -9% | 497.8 -73% |
| Write Seq | 1263 | 1076 -15% | 1666 32% | 497.8 -61% | 1265 0% | 241.4 -81% |
| Read 512 | 922 | 811 -12% | 832 -10% | 396.7 -57% | 1252 36% | 396 -57% |
| Write 512 | 804 | 862 7% | 1064 32% | 283.4 -65% | 1244 55% | 241.8 -70% |
| Read 4k | 61.4 | 55.5 -10% | 53.2 -13% | 35.73 -42% | 53.3 -13% | 27.02 -56% |
| Write 4k | 157.1 | 134.6 -14% | 167.4 7% | 87.8 -44% | 159.9 2% | 82.6 -47% |
| Read 4k QD32 | 513 | 496.2 -3% | 630 23% | 399.1 -22% | 559 9% | 388.5 -24% |
| Write 4k QD32 | 410.2 | 425.4 4% | 533 30% | 249.7 -39% | 376.7 -8% | 242.8 -41% |
| 3DMark 11 Performance | 1525 pontos | |
| 3DMark Ice Storm Standard Score | 50497 pontos | |
| 3DMark Cloud Gate Standard Score | 5621 pontos | |
| 3DMark Fire Strike Score | 697 pontos | |
Ajuda | ||
| baixo | média | alto | ultra | |
| BioShock Infinite (2013) | 40.5 | 24.3 | 19.8 | 6.4 |
| Battlefield 4 (2013) | 30.7 | 24.5 | 15.7 | |
| The Witcher 3 (2015) | 12.9 |
Barulho
| Ocioso |
| 31 / 31 / 31 dB |
| Carga |
| 33.5 / 33.7 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: 31 dB(A) | ||
| HP EliteBook 840 G4-Z2V49ET ABD i5-7200U, HD Graphics 620 | Lenovo ThinkPad T470-20HD002HGE i5-7200U, HD Graphics 620 | Lenovo ThinkPad T470s-20HGS00V00 i7-7600U, HD Graphics 620 | Fujitsu LifeBook U747 i5-7200U, HD Graphics 620 | HP EliteBook Folio 1040 G3 6300U, HD Graphics 520 | HP EliteBook 840 G3 T9X59ET#ABD 6500U, HD Graphics 520 | |
|---|---|---|---|---|---|---|
| Noise | 6% | -2% | 8% | 3% | -6% | |
| off / environment * | 31 | 28 10% | 28.9 7% | 28.2 9% | 29.1 6% | 31.2 -1% |
| Idle Minimum * | 31 | 28 10% | 28.9 7% | 28.2 9% | 29.1 6% | 31.2 -1% |
| Idle Average * | 31 | 28 10% | 28.9 7% | 28.2 9% | 29.1 6% | 32.1 -4% |
| Idle Maximum * | 31 | 29.4 5% | 30.1 3% | 28.2 9% | 29.1 6% | 33.1 -7% |
| Load Average * | 33.5 | 31.4 6% | 39.2 -17% | 31.2 7% | 32.6 3% | 36.2 -8% |
| Load Maximum * | 33.7 | 34.6 -3% | 39.2 -16% | 33 2% | 37.8 -12% | 37.8 -12% |
* ... smaller is better
(+) The maximum temperature on the upper side is 37 °C / 99 F, compared to the average of 34.2 °C / 94 F, ranging from 21.2 to 62.5 °C for the class Office.
(+) The bottom heats up to a maximum of 39.4 °C / 103 F, compared to the average of 36.7 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25 °C / 77 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 27.4 °C / 81.3 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 27.7 °C / 81.9 F (+0.3 °C / 0.6 F).
HP EliteBook 840 G4-Z2V49ET ABD audio analysis
(-) | not very loud speakers (66 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 14.6% lower than median
(±) | linearity of bass is average (7.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 0.7% away from median
(+) | mids are linear (3.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 3.9% away from median
(+) | highs are linear (5.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (16.2% difference to median)
Compared to same class
» 14% of all tested devices in this class were better, 5% similar, 80% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 21% of all tested devices were better, 5% similar, 74% worse
» The best had a delta of 4%, average was 25%, worst was 134%
Lenovo ThinkPad T470-20HD002HGE audio analysis
(±) | speaker loudness is average but good (80.4 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.6% lower than median
(±) | linearity of bass is average (8.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.3% away from median
(+) | mids are linear (6.7% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.4% higher than median
(±) | linearity of highs is average (13.3% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (18.7% difference to median)
Compared to same class
» 29% of all tested devices in this class were better, 6% similar, 65% worse
» The best had a delta of 7%, average was 22%, worst was 53%
Compared to all devices tested
» 37% of all tested devices were better, 8% similar, 55% worse
» The best had a delta of 4%, average was 25%, worst was 134%
| desligado | 0.52 / 0.72 Watt |
| Ocioso | 2.9 / 5.6 / 8.15 Watt |
| Carga |
30.6 / 31 Watt |
   
| |
| HP EliteBook 840 G4-Z2V49ET ABD i5-7200U, HD Graphics 620, 1920x1080, 14.00 | Lenovo ThinkPad T470-20HD002HGE i5-7200U, HD Graphics 620, 1920x1080, 14.00 | Lenovo ThinkPad T470s-20HGS00V00 i7-7600U, HD Graphics 620, 2560x1440, 14.00 | Fujitsu LifeBook U747 i5-7200U, HD Graphics 620, 1920x1080, 14.00 | HP EliteBook Folio 1040 G3 6300U, HD Graphics 520, 2560x1440, 14.00 | HP EliteBook 840 G3 T9X59ET#ABD 6500U, HD Graphics 520, 1920x1080, 14.00 | |
|---|---|---|---|---|---|---|
| Power Consumption | -2% | -44% | -19% | -56% | -6% | |
| Idle Minimum * | 2.9 | 3.21 -11% | 4.64 -60% | 4.11 -42% | 6.3 -117% | 3.8 -31% |
| Idle Average * | 5.6 | 6.15 -10% | 8.93 -59% | 7.87 -41% | 9.4 -68% | 6.3 -13% |
| Idle Maximum * | 8.15 | 6.82 16% | 9.12 -12% | 8.74 -7% | 10.1 -24% | 6.8 17% |
| Load Average * | 30.6 | 28.5 7% | 42.2 -38% | 30.2 1% | 33.3 -9% | 34.4 -12% |
| Load Maximum * | 31 | 34.5 -11% | 47.3 -53% | 32.4 -5% | 49.5 -60% | 28.3 9% |
* ... smaller is better
| HP EliteBook 840 G4-Z2V49ET ABD i5-7200U, HD Graphics 620, 51 Wh | Lenovo ThinkPad T470-20HD002HGE i5-7200U, HD Graphics 620, 48 Wh | Lenovo ThinkPad T470s-20HGS00V00 i7-7600U, HD Graphics 620, 51 Wh | Fujitsu LifeBook U747 i5-7200U, HD Graphics 620, 50 Wh | HP EliteBook Folio 1040 G3 6300U, HD Graphics 520, 45.6 Wh | HP EliteBook 840 G3 T9X59ET#ABD 6500U, HD Graphics 520, 46 Wh | |
|---|---|---|---|---|---|---|
| Battery Runtime | -19% | -33% | -28% | -43% | -18% | |
| Reader / Idle | 1155 | 787 -32% | 782 -32% | 530 -54% | 1020 -12% | |
| H.264 | 591 | 623 5% | 454 -23% | 490 -17% | 339 -43% | |
| WiFi v1.3 | 571 | 438 -23% | 417 -27% | 430 -25% | 309 -46% | 453 -21% |
| Load | 184 | 110 -40% | 93 -49% | 117 -36% | 131 -29% | 146 -21% |
Pro
Contra
O novo HP EliteBook 840 G4 é basicamente apenas uma atualização Kaby Lake do anterior modelo G3. Tanto o tamanho quanto a qualidade da carcaça ainda se defendem bem da concorrência, somente alguns problemas como as dobradiças rangentes ou os barulhentos botões dedicados do touchpad afetam um pouco a boa impressão. O acesso aos componentes é outro aspecto positivo: Atualizar a RAM não é um problema, por exemplo. Ainda gostamos muito dos dispositivos de entrada – do teclado em particular.
O portátil empresarial de 14 polegadas também não decepciona em termos de desempenho ou emissões. O portátil é silencioso, não esquenta excessivamente, e o Intel Core i5-7200U pode utilizar toda sua potência muito bem. A HP também aumentou a capacidade da bateria, que resulta em durações de quase 10 horas.
Bom chassi, desempenho suficiente, baixas emissões – a quarta geração do HP EliteBook 840 poderia ser um portátil empresarial muito bom. isto é impedido pelo painel TN ruim, que não tem lugar em um portátil que custa mais de 1.500 Euros (~$1614).
Que a HP somente fez uma leve atualização no EliteBook este ano, se torna evidente com as portas. Você recebe todas as conexões importantes para o escritório, mas não esta o Thunderbolt 3 para o futuro.
No entanto, o maior problema é a tela TN Full HD. A luminância e a resolução são boas, mas o painel decepciona em quase todas as outras medições. A limitada estabilidade dos ângulos de visão é um verdadeiro problema, na prática. Tal painel não deveria ser utilizado em um portátil empresarial de mais de 1.500 Euros (~$1614). Se estiver interessado no EliteBook 840, você definitivamente deveria optar por um modelo IPS. Não podemos recomendar o nosso modelo de teste com a tela TN.
HP EliteBook 840 G4-Z2V49ET ABD
-
05/26/2017 v6(old)
Andreas Osthoff
Pricecompare
