Notebookcheck

Breve Análise do Portátil Lenovo ThinkPad E470 (HD-Display, HD 620)

Benjamin Herzig (traduzido por Ricardo Soto), 10/27/2017

Tela da Idade da Pedra. O Lenovo ThinkPad E470 é um ThinkPad acessível com sua extensa base de usuários entre estudantes e usuários home office. Já analisamos este portátil anteriormente este ano. No entanto hoje estamos analisando um modelo com hardware um pouco pior para poder explicar por que você não deve optar por este portátil, nesta configuração em particular. Nunca!

Lenovo ThinkPad E470 (ThinkPad E470 Serie)
Processador
Intel Core i5-7200U
Placa gráfica
Intel HD Graphics 620
Memória
8192 MB 
Pantalha
14 polegadas 16:9, 1366x768 pixel 111 PPI, NT140WHM-N41, TN LED, Brilhante: não
placa mãe
Intel Kaby Lake-U Premium PCH
Disco rígido
SanDisk X400 SED 256GB, SATA (SD8TB8U-256G), 256 GB 
Placa de Som
Intel Kaby Lake-U/Y PCH - High Definition Audio
Conexões
1 USB 2.0, 2 USB 3.0, 1 HDMI, 1 Kensington Lock, Conexões Audio: Conector de áudio combinado de 3,5 mm, Card Reader: 4-in-1 SD, MMC, SDHC, SDXC
Funcionamento em rede
Realtek RTL8168/8111 Gigabit-LAN (10/100/1000MBit), Intel Dual Band Wireless-AC 8265 (a/b/g/n/ac), Bluetooth 4.1
Tamanho
altura x largura x profundidade (em mm): 22.4 x 339 x 242
Bateria
45 Wh Lítio-Polímero
Sistema Operativo
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: 720p
Características adicionais
Alto falantes: Estéreo de 2 W, Teclado: chiclet de 6 filas, Iluminação do Teclado: não, Carregador de 45 W, Lenovo Connect2, Lenovo App Explorer, Lenovo Companion, Lenovo Settings, McAfee LiveSafe, Microsoft Office Trial, 12 Meses Garantia
peso
1.87 kg, Suprimento de energia: 200 g

 

Size Comparison

Connectivity

left: charger, Ethernet, HDMI, USB 3.0 Type-A
left: charger, Ethernet, HDMI, USB 3.0 Type-A
right: SD card reader, combo audio jack, USB 3.0 Type-A, USB 2.0 Type-A, Kensington lock
right: SD card reader, combo audio jack, USB 3.0 Type-A, USB 2.0 Type-A, Kensington lock
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad E470-20H2S00400
Atheros/Qualcomm QCA6174
621 MBit/s ∼100% +21%
Lenovo ThinkPad E470
Intel Dual Band Wireless-AC 8265
512 MBit/s ∼82%
iperf3 Client (transmit) TCP 1 m 4M x10
Lenovo ThinkPad E470
Intel Dual Band Wireless-AC 8265
666 MBit/s ∼100%
Lenovo ThinkPad E470-20H2S00400
Atheros/Qualcomm QCA6174
413 MBit/s ∼62% -38%
215
cd/m²
180
cd/m²
207
cd/m²
221
cd/m²
209
cd/m²
216
cd/m²
216
cd/m²
199
cd/m²
209
cd/m²
Distribuição do brilho
X-Rite i1Pro 2
Máximo: 221 cd/m² Médio: 208 cd/m² Minimum: 25 cd/m²
iluminação: 81 %
iluminação com acumulador: 215 cd/m²
Contraste: 360:1 (Preto: 0.58 cd/m²)
ΔE Color 8.12 | - Ø
ΔE Greyscale 9.86 | - Ø
58% sRGB (Argyll) 37% AdobeRGB 1998 (Argyll)
Gamma: 2.37
Lenovo ThinkPad E470
NT140WHM-N41, , 1366x768, 14
Lenovo ThinkPad E470-20H2S00400
N140HCA-EAB, , 1920x1080, 14
HP ProBook 440 G4-Y8B51EA
AUO1E3D, , 1920x1080, 14
Acer TravelMate P249-M-5452
Chi Mei N140HGE-EAA, , 1920x1080, 14
Dell Latitude 14 3470
Innolux N140BGE, , 1366x768, 14
Lenovo ThinkPad T470-20HD002HGE
N140HCA-EAB, , 1920x1080, 14
Response Times
-55%
-36%
-30%
-47%
-69%
Response Time Grey 50% / Grey 80% *
44 (22, 22)
40.8 (22, 18.8)
7%
43.2 (21.2, 22)
2%
44 (23, 21)
-0%
47 (25, 22)
-7%
41.6 (20.4, 21.2)
5%
Response Time Black / White *
14 (8, 6)
30.4 (8.4, 22)
-117%
24.4 (7.2, 17.2)
-74%
16 (10, 6)
-14%
26 (18, 8)
-86%
34 (9.6, 24.4)
-143%
PWM Frequency
200 (90)
50 (10)
-75%
Screen
27%
4%
13%
-1%
45%
Brightness
208
231
11%
203
-2%
238
14%
193
-7%
287
38%
Brightness Distribution
81
89
10%
83
2%
87
7%
87
7%
88
9%
Black Level *
0.58
0.37
36%
0.47
19%
0.41
29%
0.48
17%
0.3
48%
Contrast
360
659
83%
460
28%
607
69%
429
19%
1020
183%
Colorchecker DeltaE2000 *
8.12
6.41
21%
8.98
-11%
9.09
-12%
11
-35%
6.2
24%
Greyscale DeltaE2000 *
9.86
5.94
40%
9.61
3%
9.92
-1%
11.51
-17%
5.8
41%
Gamma
2.37 101%
2.28 105%
2.63 91%
2.42 99%
2.23 108%
2.04 118%
CCT
10218 64%
6101 107%
11265 58%
11177 58%
13671 48%
6277 104%
Color Space (Percent of AdobeRGB 1998)
37
39.3
6%
35.9
-3%
36.5
-1%
38.46
4%
39.62
7%
Color Space (Percent of sRGB)
58
61.1
5%
56.7
-2%
56.7
-2%
60.61
5%
61.44
6%
Total Average (Program / Settings)
-14% / 10%
-16% / -4%
-9% / 1%
-24% / -10%
-12% / 22%

* ... smaller is better

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
14 ms ... rise ↗ and fall ↘ combined↗ 8 ms rise
↘ 6 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 0.8 (minimum) to 240 (maximum) ms. » 8 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (26.6 ms).
       Response Time 50% Grey to 80% Grey
44 ms ... rise ↗ and fall ↘ combined↗ 22 ms rise
↘ 22 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. » 62 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (42.5 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 200 Hz90 % brightness setting

The display backlight flickers at 200 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 90 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 200 Hz is relatively low, so sensitive users will likely notice flickering and experience eyestrain at the stated brightness setting and below.

In comparison: 55 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9257 (minimum: 43 - maximum: 247500) Hz was measured.

HWiNFO
HWiNFO
CPU-Z
CPU-Z
CPU-Z Caches
CPU-Z Caches
CPU-Z Mainboard
CPU-Z Mainboard
CPU-Z Memory
CPU-Z Memory
CPU-Z SPD
CPU-Z SPD
GPU-Z
GPU-Z
LatencyMon
LatencyMon
0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15
CPU Single 64Bit
Lenovo ThinkPad T470p-20J7S00000
Intel Core i7-7700HQ
161 Points ∼100% +28%
HP ProBook 440 G4-Y8B51EA
Intel Core i7-7500U
145 Points ∼90% +15%
Lenovo ThinkPad T470-20HD002HGE
Intel Core i5-7200U
126 Points ∼78% 0%
Lenovo ThinkPad E470
Intel Core i5-7200U
126 Points ∼78%
Acer TravelMate P249-M-5452
Intel Core i5-6200U
117 Points ∼73% -7%
Dell Latitude 14 3470
Intel Core i3-6100U
97 Points ∼60% -23%
CPU Multi 64Bit
Lenovo ThinkPad T470p-20J7S00000
Intel Core i7-7700HQ
735 Points ∼100% +127%
HP ProBook 440 G4-Y8B51EA
Intel Core i7-7500U
335 Points ∼46% +3%
Lenovo ThinkPad T470-20HD002HGE
Intel Core i5-7200U
326 Points ∼44% +1%
Lenovo ThinkPad E470
Intel Core i5-7200U
324 Points ∼44%
Acer TravelMate P249-M-5452
Intel Core i5-6200U
294 Points ∼40% -9%
Dell Latitude 14 3470
Intel Core i3-6100U
250 Points ∼34% -23%
Cinebench R15 OpenGL 64Bit
39.97 fps
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 CPU Multi 64Bit
324 Points
Cinebench R15 CPU Single 64Bit
126 Points
Ajuda
PCMark 8
Work Score Accelerated v2
HP ProBook 440 G4-Y8B51EA
GeForce 930MX, 7500U, SanDisk SD8SNAT256G1002
4837 Points ∼100% 0%
Lenovo ThinkPad E470
HD Graphics 620, 7200U, SanDisk X400 SED 256GB, SATA (SD8TB8U-256G)
4834 Points ∼100%
Lenovo ThinkPad T470-20HD002HGE
HD Graphics 620, 7200U, Samsung PM961 NVMe MZVLW512HMJP
4667 Points ∼96% -3%
Lenovo ThinkPad E470-20H2S00400
GeForce 940MX, 7200U, SanDisk X400 SED 256GB, SATA (SD8TB8U-256G)
4642 Points ∼96% -4%
Acer TravelMate P249-M-5452
HD Graphics 520, 6200U, SK Hynix HFS256G39TND-N210A
4463 Points ∼92% -8%
Dell Latitude 14 3470
HD Graphics 520, 6100U, Toshiba MQ01ACF050
3982 Points ∼82% -18%
Home Score Accelerated v2
Lenovo ThinkPad E470
HD Graphics 620, 7200U, SanDisk X400 SED 256GB, SATA (SD8TB8U-256G)
3674 Points ∼100%
HP ProBook 440 G4-Y8B51EA
GeForce 930MX, 7500U, SanDisk SD8SNAT256G1002
3614 Points ∼98% -2%
Lenovo ThinkPad E470-20H2S00400
GeForce 940MX, 7200U, SanDisk X400 SED 256GB, SATA (SD8TB8U-256G)
3546 Points ∼97% -3%
Lenovo ThinkPad T470-20HD002HGE
HD Graphics 620, 7200U, Samsung PM961 NVMe MZVLW512HMJP
3507 Points ∼95% -5%
Acer TravelMate P249-M-5452
HD Graphics 520, 6200U, SK Hynix HFS256G39TND-N210A
3472 Points ∼95% -5%
Dell Latitude 14 3470
HD Graphics 520, 6100U, Toshiba MQ01ACF050
3074 Points ∼84% -16%
PCMark 8 Home Score Accelerated v2
3674 pontos
PCMark 8 Work Score Accelerated v2
4834 pontos
Ajuda
Lenovo ThinkPad E470
SanDisk X400 SED 256GB, SATA (SD8TB8U-256G)
Lenovo ThinkPad E470-20H2S00400
SanDisk X400 SED 256GB, SATA (SD8TB8U-256G)
HP ProBook 440 G4-Y8B51EA
SanDisk SD8SNAT256G1002
Acer TravelMate P249-M-5452
SK Hynix HFS256G39TND-N210A
Dell Latitude 14 3470
Toshiba MQ01ACF050
Lenovo ThinkPad T470-20HD002HGE
Samsung PM961 NVMe MZVLW512HMJP
CrystalDiskMark 3.0
-0%
-14%
7%
-92%
117%
Write 4k QD32
208.8
178.3
-15%
241.4
16%
266.4
28%
0.901
-100%
425.4
104%
Read 4k QD32
284.2
276
-3%
146.3
-49%
392.8
38%
0.721
-100%
496.2
75%
Write 4k
75.07
78.82
5%
77.85
4%
95.9
28%
0.946
-99%
134.6
79%
Read 4k
34.15
35.15
3%
19.57
-43%
33.12
-3%
0.362
-99%
55.46
62%
Write 512
343.7
291.1
-15%
276
-20%
267.5
-22%
861.6
151%
Read 512
304.6
346.4
14%
310.1
2%
347.6
14%
810.6
166%
Write Seq
438.1
458.7
5%
322.2
-26%
267.2
-39%
103.2
-76%
1076
146%
Read Seq
454.2
476.5
5%
491.2
8%
509.6
12%
108.9
-76%
1155
154%
SanDisk X400 SED 256GB, SATA (SD8TB8U-256G)
Sequential Read: 454.2 MB/s
Sequential Write: 438.1 MB/s
512K Read: 304.6 MB/s
512K Write: 343.7 MB/s
4K Read: 34.15 MB/s
4K Write: 75.07 MB/s
4K QD32 Read: 284.2 MB/s
4K QD32 Write: 208.8 MB/s
3DMark 11 - 1280x720 Performance GPU
Lenovo ThinkPad E470-20H2S00400
NVIDIA GeForce 940MX, Intel Core i5-7200U
2556 Points ∼100% +81%
HP ProBook 440 G4-Y8B51EA
NVIDIA GeForce 930MX, Intel Core i7-7500U
2206 Points ∼86% +56%
Lenovo ThinkPad T470-20HD002HGE
Intel HD Graphics 620, Intel Core i5-7200U
1432 Points ∼56% +1%
Lenovo ThinkPad E470
Intel HD Graphics 620, Intel Core i5-7200U
1412 Points ∼55%
Acer TravelMate P249-M-5452
Intel HD Graphics 520, Intel Core i5-6200U
1343 Points ∼53% -5%
Dell Latitude 14 3470
Intel HD Graphics 520, Intel Core i3-6100U
1063 Points ∼42% -25%
3DMark
1920x1080 Fire Strike Graphics
Lenovo ThinkPad E470-20H2S00400
NVIDIA GeForce 940MX, Intel Core i5-7200U
1752 Points ∼100% +104%
HP ProBook 440 G4-Y8B51EA
NVIDIA GeForce 930MX, Intel Core i7-7500U
1621 Points ∼93% +89%
Lenovo ThinkPad E470
Intel HD Graphics 620, Intel Core i5-7200U
858 Points ∼49%
Lenovo ThinkPad T470-20HD002HGE
Intel HD Graphics 620, Intel Core i5-7200U
818 Points ∼47% -5%
Acer TravelMate P249-M-5452
Intel HD Graphics 520, Intel Core i5-6200U
786 Points ∼45% -8%
Dell Latitude 14 3470
Intel HD Graphics 520, Intel Core i3-6100U
569 Points ∼32% -34%
1280x720 Cloud Gate Standard Graphics
Lenovo ThinkPad E470-20H2S00400
NVIDIA GeForce 940MX, Intel Core i5-7200U
9501 Points ∼100% +36%
HP ProBook 440 G4-Y8B51EA
NVIDIA GeForce 930MX, Intel Core i7-7500U
9056 Points ∼95% +29%
Lenovo ThinkPad E470
Intel HD Graphics 620, Intel Core i5-7200U
7006 Points ∼74%
Acer TravelMate P249-M-5452
Intel HD Graphics 520, Intel Core i5-6200U
6924 Points ∼73% -1%
Lenovo ThinkPad T470-20HD002HGE
Intel HD Graphics 620, Intel Core i5-7200U
6824 Points ∼72% -3%
Dell Latitude 14 3470
Intel HD Graphics 520, Intel Core i3-6100U
5238 Points ∼55% -25%
3DMark 11 Performance
1522 pontos
3DMark Cloud Gate Standard Score
5502 pontos
3DMark Fire Strike Score
789 pontos
Ajuda
baixo média alto ultra
BioShock Infinite (2013) 39.7423.6119.56fps
Company of Heroes 2 (2013) 21.28fps
Rise of the Tomb Raider (2016) 15.7fps

Barulho

Ocioso
30.5 / 30.5 / 30.5 dB
Carga
32.9 / 32.9 dB
 
 
 
30 dB
silencioso
40 dB(A)
audível
50 dB(A)
ruidosamente alto
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm de distância)   environment noise: 30.5 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2032.532.631.531.132.52532.131.730.430.532.13133.936.233.335.133.94030.630.330.730.630.65030.12928.529.130.16327.927.627.726.927.98026.127.326.826.926.110027.226.226.225.927.212525.725.225.624.325.716024.324.12423.624.320023.523.823.22323.525023.123.322.321.623.131522.523.321.620.822.540021.422.320.720.421.450020.621.319.119.620.663020.721.319.118.520.78002020.818.418.320100019.119.618.21819.1125019.920.917.817.819.9160019.820.717.517.319.8200020.721.517.617.820.7250021.923.217.617.821.9315020.421.618.117.820.4400019.119.618.118.219.150001919.618.318.319630018.71918.618.218.7800018.718.718.518.618.71000018.818.918.718.718.81250018.81918.818.818.8160001919.119.11919SPL32.232.930.630.532.2N1.71.81.51.41.7median 20.4Lenovo ThinkPad E470median 21.3median 18.7median 18.6median 20.4Delta1.91.91.81.81.9hearing rangehide median Fan Noise
Carga Máxima
 30.4 °C35.6 °C34 °C 
 29.6 °C35.3 °C32 °C 
 26 °C25.1 °C26.7 °C 
Máximo: 35.6 °C
Médio: 30.5 °C
33.8 °C37.2 °C36.2 °C
30.1 °C37.2 °C30 °C
27.9 °C26.2 °C25.9 °C
Máximo: 37.2 °C
Médio: 31.6 °C
alimentação elétrica  41.5 °C | Temperatura do quarto 21.6 °C | FIRT 550-Pocket
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs203331.1332532.530.532.53135.235.135.2403130.631503129.131632926.9298028.226.928.21002825.92812532.324.332.316035.723.635.720043.72343.725053.521.653.531556.320.856.340059.520.459.55005919.65963063.418.563.480082.418.382.4100076.21876.2125073.617.873.6160069.217.369.2200074.317.874.325006917.869315065.317.865.3400059.118.259.1500059.518.359.5630062.918.262.9800052.418.652.41000054.518.754.51250058.118.858.11600055.41955.4SPL84.530.584.5N49.91.449.9median 59.1Lenovo ThinkPad E470median 18.6median 59.1Delta5.71.85.73336.432.635.528.436.629.234.626.23225.934.926.138.325.936.924.339.922.741.62245.324.550.52159.519.262.21862.218.668.618.573.420.369.216.56814.66614.962.814.466.514.771.315.160.214.867.11569.915.357.215.257.614.960.914.953.828.879.71.247.3median 16.5Lenovo ThinkPad T470-20HD002HGEmedian 62.23.17.1hearing rangehide median Pink Noise
Lenovo ThinkPad E470 audio analysis

(+) | speakers can play relatively loud (82.4 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 17.5% lower than median
(±) | linearity of bass is average (11.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | higher mids - on average 10.6% higher than median
(±) | linearity of mids is average (14% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 4.5% away from median
(±) | linearity of highs is average (11.2% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (24.3% difference to median)
Compared to same class
» 73% of all tested devices in this class were better, 7% similar, 20% worse
» The best had a delta of 11%, average was 21%, worst was 48%
Compared to all devices tested
» 64% of all tested devices were better, 8% similar, 28% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Lenovo ThinkPad T470-20HD002HGE audio analysis

(±) | speaker loudness is average but good (80.44 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 (17.3% difference to median)
Compared to same class
» 28% of all tested devices in this class were better, 9% similar, 63% worse
» The best had a delta of 11%, average was 21%, worst was 48%
Compared to all devices tested
» 29% of all tested devices were better, 5% similar, 66% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Consumo de energia
desligadodarklight 0.5 / 0.42 Watt
Ociosodarkmidlight 5.2 / 7.6 / 9.9 Watt
Carga midlight 31 / 29.7 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Lenovo ThinkPad E470
7200U, HD Graphics 620, SanDisk X400 SED 256GB, SATA (SD8TB8U-256G), TN LED, 1366x768, 14
Lenovo ThinkPad E470-20H2S00400
7200U, GeForce 940MX, SanDisk X400 SED 256GB, SATA (SD8TB8U-256G), IPS, 1920x1080, 14
HP ProBook 440 G4-Y8B51EA
7500U, GeForce 930MX, SanDisk SD8SNAT256G1002, TN, 1920x1080, 14
Acer TravelMate P249-M-5452
6200U, HD Graphics 520, SK Hynix HFS256G39TND-N210A, TN LED, 1920x1080, 14
Dell Latitude 14 3470
6100U, HD Graphics 520, Toshiba MQ01ACF050, TN LED, 1366x768, 14
Lenovo ThinkPad T470-20HD002HGE
7200U, HD Graphics 620, Samsung PM961 NVMe MZVLW512HMJP, IPS, 1920x1080, 14
Power Consumption
-11%
-4%
8%
7%
16%
Idle Minimum *
5.2
2.7
48%
3
42%
3.8
27%
5
4%
3.21
38%
Idle Average *
7.6
5.5
28%
5.4
29%
7.6
-0%
6.8
11%
6.15
19%
Idle Maximum *
9.9
6.5
34%
6.3
36%
8
19%
8.9
10%
6.82
31%
Load Average *
31
44.2
-43%
37.5
-21%
30.5
2%
26.2
15%
28.5
8%
Load Maximum *
29.7
65.2
-120%
61.1
-106%
32.5
-9%
31.8
-7%
34.5
-16%

* ... smaller is better

Tempo de Execução da Bateria
Ocioso (sem WLAN, min brilho)
18h 32min
Navegar com WLAN v1.3 (Edge)
8h 00min
Big Buck Bunny H.264 1080p
9h 06min
Carga (máximo brilho)
1h 51min
Lenovo ThinkPad E470
7200U, HD Graphics 620, 45 Wh
Lenovo ThinkPad E470-20H2S00400
7200U, GeForce 940MX, 45 Wh
HP ProBook 440 G4-Y8B51EA
7500U, GeForce 930MX, 48 Wh
Acer TravelMate P249-M-5452
6200U, HD Graphics 520, 41 Wh
Dell Latitude 14 3470
6100U, HD Graphics 520, 41 Wh
Lenovo ThinkPad T470-20HD002HGE
7200U, HD Graphics 620, 48 Wh
Battery Runtime
-9%
6%
-26%
-19%
1%
Reader / Idle
1112
1043
-6%
1083
-3%
791
-29%
668
-40%
H.264
546
503
-8%
571
5%
361
-34%
623
14%
WiFi v1.3
480
326
-32%
414
-14%
400
-17%
278
-42%
438
-9%
Load
111
124
12%
151
36%
87
-22%
140
26%
110
-1%

Pro

+ Carcaça decente
+ Dispositivos de entrada confortáveis
+ Desempenho decente de aplicativos
+ Conexão Wi-Fi veloz
+ Silencioso e frio inclusive sob uso intenso
+ Duração da bateria melhorada

Contra

- Sem USB Tipo C
- Apenas 12 meses de garantia
- Tela TN horrível com ângulos de visão medíocres
- Desempenho reduzido da CPU com a bateria
- Flickering PWM de baixa frequência com níveis de brilho de menos de 90 %
Lenovo Thinkpad E470. Review unit courtesy of Lenovo.
Lenovo Thinkpad E470. Review unit courtesy of Lenovo.

A conclusão é que o E470 é um portátil empresarial acessível, mas não podemos recomendar esta configuração particular que analisamos hoje.

Ele compartilha muitas das suas vantagens com o outro E470: dispositivos de entrada confortáveis e decentes com os quase lendários teclado ThinkPad e trackpad; uma carcaça sólida e bem construída que, embora não seja a mais bonita, faz o trabalho é muito bem; um modem Wi-Fi rápido; e um desempenho de aplicativos sólido - tudo o que você pode esperar do E470. Os únicos dois aspectos em que a unidade de teste de hoje é melhor  que o outro Lenovo ThinkPad E470 (Core i5, GeForce 940MX) equipado com a 940MXhttps://www.notebookcheck.net/Lenovo-ThinkPad-E470-Core-i5-GeForce-940MX-Notebook-Review.189999.0.html são o sistema de resfriamento e a duração da bateria. A falta da GPU Nvidia torna o portátil muito mais frio e mais silencioso, e a baixa resolução de tela resulta em uma duração melhorada.

Isso é, no entanto, a única vantagem da tela HD. De outra maneira, a tela é péssima: muito alto nível de preto, ângulos de visão muito estreitos e cobertura de espaço de cores não digna de seu nome. Além disso, ele também usa PWM para modulação do brilho com uma frequência muito baixa.

Não podemos recomendar o modelo E470 específico em análise devido à sua configuração desequilibrada e sua péssima tela. Se estiver interessado no E470, certifique-se de optar pela tela IPS.

Isso é suficiente para negar uma recomendação para o E470. Quase $800 é simplesmente demais para um portátil com uma tela tão pobre quanto esta. Se estiver interessado no E470, certifique-se de optar pela tela IPS FHD. De qualquer forma, o E470 está longe de ser perfeito. Por exemplo, sentimos falta de uma porta USB-C e a garantia limitada padrão da Lenovo de apenas 12 meses, estão no lado fraco. Podemos viver com essas desvantagens, dado o baixo preço do portátil, mas a tela é um ponto negativo. Além disso, o aparelho foi incapaz de entregar o seu desempenho máximo com a bateria, razão pela qual a pontuação final teve que ser reduzida em conformidade.

Lenovo ThinkPad E470 - 10/12/2017 v6
Benjamin Herzig

Acabamento
81 / 98 → 83%
Teclado
84%
Mouse
84%
Conectividade
52 / 80 → 65%
Peso
65 / 67 → 95%
Bateria
90%
Pantalha
69%
Desempenho do jogos
56 / 68 → 82%
Desempenho da aplicação
88 / 92 → 95%
Temperatura
95%
Ruído
94%
Audio
66%
Camera
44 / 85 → 52%
Impressão
-2%
Médio
69%
81%
Office - Médio equilibrado

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> Análises e revisões de portáteis e celulares > Análises > Análises > Breve Análise do Portátil Lenovo ThinkPad E470 (HD-Display, HD 620)
Benjamin Herzig, 2017-10-27 (Update: 2017-11- 1)