Breve Análise do Portátil Acer TravelMate P449-G2-M (i5-7200U, FHD IPS)
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Dell Latitude 5480 | |
| HP ProBook 440 G4-Y8B51EA | |
| Lenovo ThinkPad E470-20H2S00400 | |
| Acer TravelMate P449-G2-M-56CD | |
| maximum AS SSD Seq Read Test (1GB) | |
| Dell Latitude 5480 | |
| HP ProBook 440 G4-Y8B51EA | |
| Lenovo ThinkPad E470-20H2S00400 | |
| Acer TravelMate P449-G2-M-56CD | |
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iluminação: 85 %
iluminação com acumulador: 271 cd/m²
Contraste: 630:1 (Preto: 0.43 cd/m²)
ΔE Color 5.03 | 0.5-29.43 Ø4.91
ΔE Greyscale 4.02 | 0.5-98 Ø5.2
61% sRGB (Argyll 1.6.3 3D)
39% AdobeRGB 1998 (Argyll 1.6.3 3D)
42.47% AdobeRGB 1998 (Argyll 2.2.0 3D)
61.2% sRGB (Argyll 2.2.0 3D)
41.04% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.31
| Acer TravelMate P449-G2-M-56CD N140HCA-EAB, , 1920x1080, 14" | Lenovo ThinkPad E470-20H2S00400 N140HCA-EAB, , 1920x1080, 14" | Lenovo ThinkPad L470-20J5S00C00 N140HCA-EAB, , 1920x1080, 14" | HP ProBook 440 G4-Y8B51EA AUO1E3D, , 1920x1080, 14" | Dell Latitude 5480 LG Philips LGD0553, , 1920x1080, 14" | Asus ASUSPRO B9440UA-GV0100T AU Optronics AUO353D / B140HAN03.5, , 1920x1080, 14" | |
|---|---|---|---|---|---|---|
| Display | 0% | 3% | -8% | -1% | 52% | |
| Display P3 Coverage | 41.04 | 41.23 0% | 42.21 3% | 37.6 -8% | 40.62 -1% | 64 56% |
| sRGB Coverage | 61.2 | 61.4 0% | 62.7 2% | 56.6 -8% | 61.2 0% | 89.1 46% |
| AdobeRGB 1998 Coverage | 42.47 | 42.67 0% | 43.71 3% | 38.85 -9% | 41.96 -1% | 65.2 54% |
| Response Times | -7% | -20% | 1% | 11% | -18% | |
| Response Time Grey 50% / Grey 80% * | 39 ? | 40.8 ? -5% | 50.4 ? -29% | 43.2 ? -11% | 32.8 ? 16% | 48.8 ? -25% |
| Response Time Black / White * | 28 ? | 30.4 ? -9% | 30.8 ? -10% | 24.4 ? 13% | 26.4 ? 6% | 30.8 ? -10% |
| PWM Frequency | 25000 ? | |||||
| Screen | -8% | -3% | -33% | 5% | 5% | |
| Brightness middle | 271 | 244 -10% | 274 1% | 216 -20% | 215.9 -20% | 319 18% |
| Brightness | 256 | 231 -10% | 256 0% | 203 -21% | 205 -20% | 294 15% |
| Brightness Distribution | 85 | 89 5% | 85 0% | 83 -2% | 90 6% | 87 2% |
| Black Level * | 0.43 | 0.37 14% | 0.35 19% | 0.47 -9% | 0.22 49% | 0.26 40% |
| Contrast | 630 | 659 5% | 783 24% | 460 -27% | 981 56% | 1227 95% |
| Colorchecker dE 2000 * | 5.03 | 6.41 -27% | 6.1 -21% | 8.98 -79% | 5.1 -1% | 7.1 -41% |
| Colorchecker dE 2000 max. * | 11.9 | 13.4 -13% | 13.8 -16% | 14.07 -18% | 15.6 -31% | 13.7 -15% |
| Greyscale dE 2000 * | 4.02 | 5.94 -48% | 5.7 -42% | 9.61 -139% | 4 -0% | 9.61 -139% |
| Gamma | 2.31 95% | 2.28 96% | 2.11 104% | 2.63 84% | 2.41 91% | 2.33 94% |
| CCT | 6659 98% | 6101 107% | 6419 101% | 11265 58% | 6856 95% | 6021 108% |
| Color Space (Percent of AdobeRGB 1998) | 39 | 39.3 1% | 40.2 3% | 35.9 -8% | 41.96 8% | 54.01 38% |
| Color Space (Percent of sRGB) | 61 | 61.1 0% | 62.4 2% | 56.7 -7% | 61.15 0% | 83.02 36% |
| Total Average (Program / Settings) | -5% /
-6% | -7% /
-4% | -13% /
-24% | 5% /
4% | 13% /
11% |
* ... smaller is better
Display Response Times
| ↔ Response Time Black to White | ||
|---|---|---|
| 28 ms ... rise ↗ and fall ↘ combined | ↗ 16 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. » 68 % 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 | ||
| 39 ms ... rise ↗ and fall ↘ combined | ↗ 22 ms rise |  |
| ↘ 17 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. » 55 % 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 detected | 25000 Hz | ≤ 70 % brightness setting |  |
The display backlight flickers at 25000 Hz (worst case, e.g., utilizing PWM) Flickering detected at a brightness setting of 70 % and below. There should be no flickering or PWM above this brightness setting. The frequency of 25000 Hz is quite high, so most users sensitive to PWM should not notice any flickering. In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8719 (minimum: 5 - maximum: 343500) Hz was measured. | |||
| PCMark 8 Home Score Accelerated v2 | 3519 pontos | |
| PCMark 8 Work Score Accelerated v2 | 4605 pontos | |
| PCMark 10 Score | 3068 pontos | |
Ajuda | ||
| Acer TravelMate P449-G2-M-56CD Intel SSD 600p SSDPEKKW512G7 | Lenovo ThinkPad E470-20H2S00400 SanDisk X400 SED 256GB, SATA (SD8TB8U-256G) | Lenovo ThinkPad L470-20J5S00C00 SanDisk X400 256GB, SATA (SD8SB8U-256G) | HP ProBook 440 G4-Y8B51EA SanDisk SD8SNAT256G1002 | Dell Latitude 5480 Toshiba SG5 256GB THNSNK256GVN8 | Asus ASUSPRO B9440UA-GV0100T Micron SSD 1100 (MTFDDAV256TBN) | |
|---|---|---|---|---|---|---|
| CrystalDiskMark 3.0 | -40% | -38% | -50% | -40% | -39% | |
| Read Seq | 1086 | 476.5 -56% | 495.2 -54% | 491.2 -55% | 469.4 -57% | 462 -57% |
| Write Seq | 581 | 458.7 -21% | 485.7 -16% | 322.2 -45% | 264.8 -54% | 441.4 -24% |
| Read 512 | 869 | 346.4 -60% | 323.4 -63% | 310.1 -64% | 408.1 -53% | 323.2 -63% |
| Write 512 | 584 | 291.1 -50% | 291.5 -50% | 276 -53% | 265.5 -55% | 398.8 -32% |
| Read 4k | 35.89 | 35.15 -2% | 34.2 -5% | 19.57 -45% | 24.66 -31% | 26.81 -25% |
| Write 4k | 122.4 | 78.8 -36% | 74.3 -39% | 77.8 -36% | 114.8 -6% | 87.8 -28% |
| Read 4k QD32 | 462.9 | 276 -40% | 321.3 -31% | 146.3 -68% | 380.3 -18% | 247.3 -47% |
| Write 4k QD32 | 370.9 | 178.3 -52% | 188 -49% | 241.4 -35% | 207.2 -44% | 232.1 -37% |
| 3DMark 11 Performance | 1496 pontos | |
| 3DMark Cloud Gate Standard Score | 5308 pontos | |
| 3DMark Fire Strike Score | 684 pontos | |
Ajuda | ||
| baixo | média | alto | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 41.54 | 24.06 | 19.89 | |
| Company of Heroes 2 (2013) | 22.5 | |||
| Rise of the Tomb Raider (2016) | 16.88 |
Barulho
| Ocioso |
| 30.2 / 30.2 / 30.2 dB |
| Carga |
| 36.7 / 36.4 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: 29.9 dB(A) | ||
(+) The maximum temperature on the upper side is 36.8 °C / 98 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 31.3 °C / 88 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 25.3 °C / 78 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 25.1 °C / 77.2 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 (+2.5 °C / 4.5 F).
Acer TravelMate P449-G2-M-56CD audio analysis
(±) | speaker loudness is average but good (75 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 24.3% lower than median
(±) | linearity of bass is average (10.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 3.5% away from median
(±) | linearity of mids is average (7.8% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 7% higher than median
(±) | linearity of highs is average (7.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (22.1% difference to median)
Compared to same class
» 54% of all tested devices in this class were better, 9% similar, 37% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 61% of all tested devices were better, 7% similar, 33% 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 | 0.3 / 0.46 Watt |
| Ocioso | 4.5 / 7.1 / 10.2 Watt |
| Carga |
29.8 / 31 Watt |
   
| |
Key:
min: ,
med: ,
max: Metrahit Energy | |
| Acer TravelMate P449-G2-M-56CD i5-7200U, HD Graphics 620, Intel SSD 600p SSDPEKKW512G7, IPS, 1920x1080, 14" | Lenovo ThinkPad E470-20H2S00400 i5-7200U, GeForce 940MX, SanDisk X400 SED 256GB, SATA (SD8TB8U-256G), IPS, 1920x1080, 14" | Lenovo ThinkPad L470-20J5S00C00 i5-7200U, HD Graphics 620, SanDisk X400 256GB, SATA (SD8SB8U-256G), IPS, 1920x1080, 14" | HP ProBook 440 G4-Y8B51EA i7-7500U, GeForce 930MX, SanDisk SD8SNAT256G1002, TN, 1920x1080, 14" | Dell Latitude 5480 i7-7600U, HD Graphics 620, Toshiba SG5 256GB THNSNK256GVN8, IPS, 1920x1080, 14" | Asus ASUSPRO B9440UA-GV0100T i5-7200U, HD Graphics 620, Micron SSD 1100 (MTFDDAV256TBN), IPS, 1920x1080, 14" | |
|---|---|---|---|---|---|---|
| Power Consumption | -12% | 10% | -6% | -5% | 9% | |
| Idle Minimum * | 4.5 | 2.7 40% | 2.6 42% | 3 33% | 6.64 -48% | 3.1 31% |
| Idle Average * | 7.1 | 5.5 23% | 6.3 11% | 5.4 24% | 6.67 6% | 6.1 14% |
| Idle Maximum * | 10.2 | 6.5 36% | 7 31% | 6.3 38% | 7.78 24% | 6.8 33% |
| Load Average * | 29.8 | 44.2 -48% | 29.1 2% | 37.5 -26% | 30.83 -3% | 27.4 8% |
| Load Maximum * | 31 | 65.2 -110% | 42.3 -36% | 61.1 -97% | 31.7 -2% | 43.7 -41% |
* ... smaller is better
| Acer TravelMate P449-G2-M-56CD i5-7200U, HD Graphics 620, 48 Wh | Lenovo ThinkPad E470-20H2S00400 i5-7200U, GeForce 940MX, 45 Wh | Lenovo ThinkPad L470-20J5S00C00 i5-7200U, HD Graphics 620, 48 Wh | HP ProBook 440 G4-Y8B51EA i7-7500U, GeForce 930MX, 48 Wh | Dell Latitude 5480 i7-7600U, HD Graphics 620, 68 Wh | Asus ASUSPRO B9440UA-GV0100T i5-7200U, HD Graphics 620, 48 Wh | |
|---|---|---|---|---|---|---|
| Battery Runtime | 6% | 35% | 23% | 95% | 31% | |
| Reader / Idle | 976 | 1043 7% | 1398 43% | 1083 11% | 1448 48% | 1137 16% |
| H.264 | 503 | 503 0% | 647 29% | 571 14% | ||
| WiFi v1.3 | 341 | 326 -4% | 480 41% | 414 21% | 964 183% | 531 56% |
| Load | 104 | 124 19% | 130 25% | 151 45% | 159 53% | 126 21% |
Pro
Contra
Portáteis empresariais acessíveis como a nossa unidade em questão, às vezes são descritos como o "pão e manteiga" do mercado de portáteis pelos fabricantes: não particularmente excitante, mas um campeão de vendas. Afastar-se da concorrência é bastante difícil, e a maioria dos aparelhos se perde entre a multidão. Este também é o caso do TravelMate P449: portátil empresarial sólido, mas nada extravagante.
Particularmente simpático foi o muito bom touchpad do P449. Um touchpad medíocre ou ruim pode arruinar toda a experiência e, nós damos as boas-vindas ao fato de que a maioria dos fabricantes vem prestando cada vez mais atenção ao touchpad nos últimos anos. Considerando que alguns fabricantes, como a HP, ainda estão equipando seus portáteis empresariais com painéis TN inferiores e painéis mesquinhos, o painel IPS do P449 é definitivamente uma vantagem. Também gostamos das baixas temperaturas de superfície do P449 e do veloz SSD PCIe com o qual nenhum dos concorrentes estava equipado.
Não é de primeira qualidade, mas não está mal. O TravelMate P449 é uma obra suave, porém, bem feita.
Lamentavelmente, o dinheiro gasto por um lado deve retirado de outro e, em troca do veloz SSD PCIe, o P449 está equipado com um leitor de cartões SD muito lento e mal projetado. Além disso, também não gostamos o design alterado do teclado, e porque o P449 tem um slot para uma unidade de 2,5 polegadas, mas faltam os conectores, continua sendo um mistério, igual que a ventoinha. Dadas as baixas temperaturas, nós realmente não vemos motivo pelo qual ventoinha não é desativada completamente quando o aparelho esta no modo inativo e sob uso leve. Como com todos os aparelhos neste segmento de mercado, o espaço de cores da tela foi bastante pobre. A duração da bateria foi muito pobre, e todos os outros aparelhos duraram muito mais em nossos testes.
Em resumo, o TravelMate P449 ainda pode ser um aparelho agradável, desde que se acostume ao teclado. No entanto, nenhum de seus concorrentes foi perfeito, mas alguns oferecem algumas vantagens, como baterias removíveis ou GPUs dedicadas.
Acer TravelMate P449-G2-M-56CD
- 07/26/2017 v6 (old)
Benjamin Herzig
Price comparison
