Breve análisis del portátil Fujitsu Lifebook U747
| SD Card Reader | |
| average JPG Copy Test (av. of 3 runs) | |
| Dell XPS 13 9360 QHD+ i7 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| Fujitsu LifeBook U747 | |
| maximum AS SSD Seq Read Test (1GB) | |
| Dell XPS 13 9360 QHD+ i7 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| Fujitsu LifeBook U747 | |
| Networking | |
| iperf3 transmit AX12 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| Fujitsu LifeBook U747 | |
| HP EliteBook 820 G4 Z2V72ET (jseb) | |
| iperf3 receive AX12 | |
| Lenovo ThinkPad T470-20HD002HGE | |
| Fujitsu LifeBook U747 | |
| HP EliteBook 820 G4 Z2V72ET (jseb) | |
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iluminación: 84 %
Brillo con batería: 296 cd/m²
Contraste: 909:1 (Negro: 0.32 cd/m²)
ΔE Color 4.3 | 0.5-29.43 Ø4.91
ΔE Greyscale 4.3 | 0.5-98 Ø5.2
84.77% sRGB (Argyll 1.6.3 3D)
55.46% AdobeRGB 1998 (Argyll 1.6.3 3D)
62% AdobeRGB 1998 (Argyll 2.2.0 3D)
84.8% sRGB (Argyll 2.2.0 3D)
66.1% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.31
| Fujitsu LifeBook U747 LG LP140WF3, , 1920x1080, 14" | Lenovo ThinkPad T470-20HD002HGE N140HCA-EAB, , 1920x1080, 14" | Acer TravelMate P648-M-757N AU Optronics B140HAN02.1, , 1920x1080, 14" | Dell Latitude 14 7000 Series E7470 AUO B140QAN Dell PN F0WXVV, , 2560x1440, 14" | HP EliteBook 840 G3 T9X59ET#ABD Chi Mei CMN14C0, , 1920x1080, 14" | |
|---|---|---|---|---|---|
| Display | -32% | -41% | 9% | -19% | |
| Display P3 Coverage | 66.1 | 41.6 -37% | 35.53 -46% | 67.2 2% | 48.93 -26% |
| sRGB Coverage | 84.8 | 61.9 -27% | 53.3 -37% | 95.9 13% | 73.7 -13% |
| AdobeRGB 1998 Coverage | 62 | 43.06 -31% | 36.72 -41% | 69.3 12% | 50.5 -19% |
| Response Times | -32% | -15% | -25% | -14% | |
| Response Time Grey 50% / Grey 80% * | 36 ? | 41.6 ? -16% | 44 ? -22% | 48 ? -33% | 43 ? -19% |
| Response Time Black / White * | 23.2 ? | 34 ? -47% | 25 ? -8% | 27 ? -16% | 25 ? -8% |
| PWM Frequency | 204 ? | ||||
| Screen | -19% | -3% | 19% | -48% | |
| Brightness middle | 291 | 306 5% | 254 -13% | 380 31% | 366 26% |
| Brightness | 296 | 287 -3% | 243 -18% | 354 20% | 336 14% |
| Brightness Distribution | 84 | 88 5% | 90 7% | 81 -4% | 87 4% |
| Black Level * | 0.32 | 0.3 6% | 0.19 41% | 0.26 19% | 0.65 -103% |
| Contrast | 909 | 1020 12% | 1337 47% | 1462 61% | 563 -38% |
| Colorchecker dE 2000 * | 4.3 | 6.2 -44% | 4.93 -15% | 3.11 28% | 10.26 -139% |
| Colorchecker dE 2000 max. * | 7.5 | 13.6 -81% | 10.14 -35% | 6.73 10% | |
| Greyscale dE 2000 * | 4.3 | 5.8 -35% | 2.71 37% | 4.35 -1% | 11.51 -168% |
| Gamma | 2.31 95% | 2.04 108% | 2.36 93% | 2.37 93% | 2.4 92% |
| CCT | 6529 100% | 6277 104% | 6914 94% | 6771 96% | 12725 51% |
| Color Space (Percent of AdobeRGB 1998) | 55.46 | 39.62 -29% | 34 -39% | 62 12% | 47 -15% |
| Color Space (Percent of sRGB) | 84.77 | 61.44 -28% | 53 -37% | 96 13% | 74 -13% |
| Media total (Programa/Opciones) | -28% /
-23% | -20% /
-12% | 1% /
11% | -27% /
-37% |
* ... más pequeño es mejor
Tiempos de respuesta del display
| ↔ Tiempo de respuesta de Negro a Blanco | ||
|---|---|---|
| 23.2 ms ... subida ↗ y bajada ↘ combinada | ↗ 12.4 ms subida |  |
| ↘ 10.8 ms bajada | ||
| La pantalla mostró buenos tiempos de respuesta en nuestros tests pero podría ser demasiado lenta para los jugones competitivos. En comparación, todos los dispositivos de prueba van de ##min### (mínimo) a 240 (máximo) ms. » 49 % de todos los dispositivos son mejores. Eso quiere decir que el tiempo de respuesta es peor que la media (20.9 ms) de todos los dispositivos testados. | ||
| ↔ Tiempo de respuesta 50% Gris a 80% Gris | ||
| 36 ms ... subida ↗ y bajada ↘ combinada | ↗ 16.4 ms subida |  |
| ↘ 19.6 ms bajada | ||
| La pantalla mostró tiempos de respuesta lentos en nuestros tests y podría ser demasiado lenta para los jugones. En comparación, todos los dispositivos de prueba van de ##min### (mínimo) a 636 (máximo) ms. » 46 % de todos los dispositivos son mejores. Eso quiere decir que el tiempo de respuesta es similar al dispositivo testado medio (32.8 ms). | ||
Parpadeo de Pantalla / PWM (Pulse-Width Modulation)
| Parpadeo de Pantalla / PWM no detectado | ||
Comparación: 53 % de todos los dispositivos testados no usaron PWM para atenuar el display. Si se usó, medimos una media de 8719 (mínimo: 5 - máxmo: 343500) Hz. | ||
| PCMark 8 Home Score Accelerated v2 | 3506 puntos | |
| PCMark 8 Work Score Accelerated v2 | 4653 puntos | |
ayuda | ||
| Fujitsu LifeBook U747 Samsung MZYTY256HDHP | Lenovo ThinkPad T470-20HD002HGE Samsung PM961 NVMe MZVLW512HMJP | Acer TravelMate P648-M-757N Lite-On CV1-8B256 | Dell Latitude 14 7000 Series E7470 Samsung SSD PM851 M.2 2280 256GB | HP EliteBook 840 G3 T9X59ET#ABD Samsung SSD PM851 256 GB MZNTE256HMHP | Lenovo ThinkPad T470s-20HGS00V00 Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0) | |
|---|---|---|---|---|---|---|
| CrystalDiskMark 3.0 | 94% | -9% | -5% | -13% | 148% | |
| Read Seq | 504 | 1155 129% | 531 5% | 518 3% | 497.8 -1% | 1760 249% |
| Write Seq | 497.8 | 1076 116% | 358.8 -28% | 300.7 -40% | 241.4 -52% | 1666 235% |
| Read 512 | 396.7 | 811 104% | 384.8 -3% | 470.8 19% | 396 0% | 832 110% |
| Write 512 | 283.4 | 862 204% | 363 28% | 214 -24% | 241.8 -15% | 1064 275% |
| Read 4k | 35.73 | 55.5 55% | 31.3 -12% | 36.32 2% | 27.02 -24% | 53.2 49% |
| Write 4k | 87.8 | 134.6 53% | 80.3 -9% | 110.9 26% | 82.6 -6% | 167.4 91% |
| Read 4k QD32 | 399.1 | 496.2 24% | 239.4 -40% | 400.9 0% | 388.5 -3% | 630 58% |
| Write 4k QD32 | 249.7 | 425.4 70% | 225.3 -10% | 191.7 -23% | 242.8 -3% | 533 113% |
| 3DMark 11 Performance | 1524 puntos | |
| 3DMark Cloud Gate Standard Score | 5656 puntos | |
| 3DMark Fire Strike Score | 738 puntos | |
ayuda | ||
| bajo | medio | alto | ultra | |
|---|---|---|---|---|
| BioShock Infinite (2013) | 42.35 | 24.15 | 19.85 | |
| Company of Heroes 2 (2013) | 21.04 | 16.04 | ||
| Rise of the Tomb Raider (2016) | 14.45 |
Ruido
| Ocioso |
| 28.2 / 28.2 / 28.2 dB(A) |
| Carga |
| 31.2 / 33 dB(A) |
 | ||
30 dB silencioso 40 dB(A) audible 50 dB(A) ruidosamente alto |
||
min:  , med:  , max:  Audix TM1, Arta (15 cm de distancia) environment noise: 28.2 dB(A) | ||
(±) The maximum temperature on the upper side is 42.6 °C / 109 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 34.4 °C / 94 F, compared to the average of 36.8 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 22.8 °C / 73 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 23.7 °C / 74.7 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 (+3.9 °C / 7 F).
Fujitsu LifeBook U747 audio analysis
(-) | not very loud speakers (68.1 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 15.2% lower than median
(+) | bass is linear (6.6% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 6.1% higher than median
(±) | linearity of mids is average (8.4% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.4% away from median
(±) | linearity of highs is average (10.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (26.3% difference to median)
Compared to same class
» 79% of all tested devices in this class were better, 7% similar, 14% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 79% of all tested devices were better, 4% similar, 17% 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
» 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%
| Off / Standby | 0.17 / 0.33 Watt |
| Ocioso | 4.11 / 7.87 / 8.74 Watt |
| Carga |
30.2 / 32.4 Watt |
   
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Clave:
min: ,
med: ,
max: Metrahit Energy | |
| Fujitsu LifeBook U747 i5-7200U, HD Graphics 620, Samsung MZYTY256HDHP, IPS LED, 1920x1080, 14" | Lenovo ThinkPad T470-20HD002HGE i5-7200U, HD Graphics 620, Samsung PM961 NVMe MZVLW512HMJP, IPS, 1920x1080, 14" | Acer TravelMate P648-M-757N 6500U, HD Graphics 520, Lite-On CV1-8B256, IPS, 1920x1080, 14" | Dell Latitude 14 7000 Series E7470 6600U, HD Graphics 520, Samsung SSD PM851 M.2 2280 256GB, IPS, 2560x1440, 14" | HP EliteBook 840 G3 T9X59ET#ABD 6500U, HD Graphics 520, Samsung SSD PM851 256 GB MZNTE256HMHP, TN LED, 1920x1080, 14" | Lenovo ThinkPad T470s-20HGS00V00 i7-7600U, HD Graphics 620, Samsung SSD PM961 1TB M.2 PCIe 3.0 x4 NVMe (MZVLW1T0), IPS, 2560x1440, 14" | |
|---|---|---|---|---|---|---|
| Power Consumption | 13% | -16% | -12% | 10% | -23% | |
| Idle Minimum * | 4.11 | 3.21 22% | 5.3 -29% | 5.1 -24% | 3.8 8% | 4.64 -13% |
| Idle Average * | 7.87 | 6.15 22% | 9.3 -18% | 8.5 -8% | 6.3 20% | 8.93 -13% |
| Idle Maximum * | 8.74 | 6.82 22% | 11.5 -32% | 10.1 -16% | 6.8 22% | 9.12 -4% |
| Load Average * | 30.2 | 28.5 6% | 30.8 -2% | 35.2 -17% | 34.4 -14% | 42.2 -40% |
| Load Maximum * | 32.4 | 34.5 -6% | 32 1% | 31 4% | 28.3 13% | 47.3 -46% |
* ... más pequeño es mejor
| Fujitsu LifeBook U747 i5-7200U, HD Graphics 620, 50 Wh | Lenovo ThinkPad T470-20HD002HGE i5-7200U, HD Graphics 620, 48 Wh | Acer TravelMate P648-M-757N 6500U, HD Graphics 520, 54 Wh | Dell Latitude 14 7000 Series E7470 6600U, HD Graphics 520, 55 Wh | HP EliteBook 840 G3 T9X59ET#ABD 6500U, HD Graphics 520, 46 Wh | Lenovo ThinkPad T470s-20HGS00V00 i7-7600U, HD Graphics 620, 51 Wh | |
|---|---|---|---|---|---|---|
| Duración de Batería | 8% | 17% | -12% | 20% | -8% | |
| Reader / Idle | 782 | 1083 38% | 1020 30% | 787 1% | ||
| H.264 | 490 | 623 27% | 545 11% | 454 -7% | ||
| WiFi v1.3 | 430 | 438 2% | 543 26% | 346 -20% | 453 5% | 417 -3% |
| Load | 117 | 110 -6% | 110 -6% | 112 -4% | 146 25% | 93 -21% |
Pro
Contra
El Lifebook U747 es un buen portátil. Fujitsu apenas comete errores. Ofrece una soberbia pantalla, buena duración de batería y un teclado que permite un tecleo agradable. La carcasa es estable, bien construida, y su diseño encaja bien con lo que se espera de un portátil de negocios. Esto se puede decir también de la variedad de interfaces. A pesar de que no incluye Thunderbolt 3, esto no es realmente un punto negativo porque tampoco sería algo esperable. Las temperaturas del modelo de prueba siempre se han mantenido bajas y el ventilador casi siempre parado.
Esto nos lleva a la pequeña lista de inconvenientes: a pesar de que el ventilador se mantiene bastante en calma, produce un ruido de alta frecuencia cuando empieza a funcionar. Esto no es una razón para descartarlo, pero sí resulta molesto. Lo mismo ocurre con los altavoces y la webcam instalada. Sin embargo, no es inusual que estos componentes no reciban demasiada atención. El mayor inconveniente es el touchpad: Fujitsu no ha instalado un touchpad Precision, el incluido es un poco antiguo y por tanto no es tan bueno como podría haber sido. Desafortunadamente las teclas del touchpad solo empeoran esta impresión. Un TrackPoint podría haber compensado este problema, pero no se incluye ninguno. Finalmente el periodo de garantía es corto en comparación con sus competidores.
Con el Lifebook U747 Fujitsu presenta un solido aspirante a la corona de portátiles para negocios. Desafortunadamente el mediocre touchpad arruina la buena presentación del portátil.
Despite the touchpad, the Lifebook receives a recommendation as it is overall well-conceived otherwise. However, the competition will not make it easy for Fujitsu as this market sector is highly competitive. A very strong rival is certainly Lenovo's ThinkPad T470 that scores better than the Lifebook in many aspects; only its screen is considerably worse. Dell's new Latitude and HP's new EliteBook models (Latitude 7480 and EliteBook 840 G4) will also surely be strong rivals. The corresponding tests will be published soon.
A pesar del touchpad, el Lifebook recibe nuestra recomendación por su nivel global. Sin embargo, la competencia no se lo pone fácil ya que este sector es muy competitivo. Un rival muy fuerte es el Lenovo's ThinkPad T470 que puntua mejor que el Liefbook en varios aspectos aunque su pantalla es bastante peor. El nuevo Latitude de Dell y el nuevo EliteBook de HP (Latitude 7480 y Elitebook 840 G4) son también potentes rivales. Los analizaremos pronto.
Ésta es una versión acortada del análisis original. Puedes leer el análisis completo en inglés aquí.
Fujitsu LifeBook U747
- 03/09/2017 v6 (old)
Benjamin Herzig
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