Notebookcheck

Test: Lenovo ThinkPad A275 (A12-9800B, 256GB) Laptop (Sammanfattning)

Sebastian Jentsch (översatt av Daniel Eriksson), 01/11/2018

Osäker framtidsutsikt. Lenovo har skapat en AMD-version av X270. Den utmärker sig i fråga om inmatningsenheter, säkerhet och mobilitet. Men stabiliteten och kvalitetsnivån är undermåliga och skärmen lyckas av någon anledning inte vara ändamålsenlig.

Lenovo ThinkPad A275 (ThinkPad A Serie)
Processor
AMD PRO A12-9800B
Grafikkort
AMD Radeon R7 (Bristol Ridge) - 512 MB, Kärna: 758 MHz, Minne: 933 MHz, DDR4, Crimson 17.6
Minne
16384 MB 
, DDR4 1 modul Micro Tech
Skärm
12.5 tum 16:9, 1366 x 768 pixlar 125 PPI, Len40E0, TN, glansig: nej
Hårddisk
Samsung PM961 MZVLW256HEHP, 256 GB 
, 168 GB ledigt
Ljudkort
AMD Kabini - High Definition Audio Controller
Anslutningar
3 USB 3.0, 1 VGA, 1 HDMI, 1 DisplayPort, 1 Kensingtonlås, Ljudanslutningar: kombinerad utgång/mikrofon, Kortläsare: SD/​SDHC/​SDXC/​MMC, 1 SmartCard, 1 Fingeravtrycksläsare, dTPM 2.0
Nätverk
Realtek RTL8168/8111 Gigabit-LAN (10/100/1000MBit), Realtek 8822BE Wireless LAN 802.11ac PCI-E NIC (a/b/g/n/ac), Bluetooth 4.1
Storlek
höjd x bredd x djup (i mm) 20.3 x 305.5 x 208.5
Batteri
71 Wh Litiumjon, 3 celler, 23+48 Wh (inbyggt + externt), Batteritid (enligt tillverkaren): 10 tim
Operativsystem
Microsoft Windows 10 Pro 64 Bit
Camera
Webbkamera: HD 1280x720
Primary Camera: 0.9 MPix Webbkamera
Övrigt
Högtalare: Mono, Tangentbord: Chiclet, Tangentbordsbelysning: ja, Lenovo Settings, 36 Månader Garanti
Vikt
1.623 kg, Strömförsörjning: 289 g
Pris
759 Kr

 

Size Comparison

left: power, USB Type-C, HDMI, USB 3.0
left: power, USB Type-C, HDMI, USB 3.0
right: 3.5-mm audio combo jack, USB 3.0, SD card reader, SIM slot, Ethernet, Kensington lock
right: 3.5-mm audio combo jack, USB 3.0, SD card reader, SIM slot, Ethernet, Kensington lock
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
HP EliteBook 820 G3
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
73.7 MB/s ∼100% +20%
Lenovo ThinkPad X260-20F6007RGE
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
63.2 MB/s ∼86% +3%
Lenovo ThinkPad X270-20HMS00T00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
62.2 MB/s ∼84% +1%
Lenovo ThinkPad A275
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
61.3 MB/s ∼83%
HP EliteBook 725 G4
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
60.5 MB/s ∼82% -1%
Lenovo Thinkpad 13-20J1001BUS
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
28.1 MB/s ∼38% -54%
maximum AS SSD Seq Read Test (1GB)
Lenovo ThinkPad X270-20HMS00T00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
88 MB/s ∼100% +6%
HP EliteBook 820 G3
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
86.89 MB/s ∼99% +5%
Lenovo ThinkPad X260-20F6007RGE
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
83.47 MB/s ∼95% +1%
Lenovo ThinkPad A275
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
83 MB/s ∼94%
HP EliteBook 725 G4
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
81.6 MB/s ∼93% -2%
Lenovo Thinkpad 13-20J1001BUS
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
32.7 MB/s ∼37% -61%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Lenovo ThinkPad X270-20HMS00T00
Intel Dual Band Wireless-AC 8265
671 MBit/s ∼100% +41%
Lenovo Thinkpad 13-20J1001BUS
Intel Dual Band Wireless-AC 8265
658 MBit/s ∼98% +39%
HP EliteBook 725 G4
Intel Dual Band Wireless-AC 7265
528 MBit/s ∼79% +11%
Lenovo ThinkPad A275
Realtek 8822BE Wireless LAN 802.11ac PCI-E NIC
475 MBit/s ∼71%
HP Envy x360 15m-bq121dx
RealTek Semiconductor, Device ID: B822
473 MBit/s ∼70% 0%
Lenovo IdeaPad 320S-13IKB
Intel Dual Band Wireless-AC 3165
326 MBit/s ∼49% -31%
iperf3 Client (transmit) TCP 1 m 4M x10
HP EliteBook 725 G4
Intel Dual Band Wireless-AC 7265
610 MBit/s ∼100% +18%
Lenovo ThinkPad A275
Realtek 8822BE Wireless LAN 802.11ac PCI-E NIC
519 MBit/s ∼85%
Lenovo Thinkpad 13-20J1001BUS
Intel Dual Band Wireless-AC 8265
517 MBit/s ∼85% 0%
Lenovo ThinkPad X270-20HMS00T00
Intel Dual Band Wireless-AC 8265
512 MBit/s ∼84% -1%
HP Envy x360 15m-bq121dx
RealTek Semiconductor, Device ID: B822
438 MBit/s ∼72% -16%
Lenovo IdeaPad 320S-13IKB
Intel Dual Band Wireless-AC 3165
295 MBit/s ∼48% -43%
241
cd/m²
247
cd/m²
264
cd/m²
237
cd/m²
255
cd/m²
249
cd/m²
232
cd/m²
243
cd/m²
229
cd/m²
Distribution av ljusstyrkan
X-Rite i1Pro 2
Max: 264 cd/m² Medel: 244.1 cd/m² Minimum: 3.3 cd/m²
Distribution av ljusstyrkan: 87 %
Mitt på batteriet: 130 cd/m²
Kontrast: 490:1 (Svärta: 0.52 cd/m²)
ΔE Color 9.76 | 0.4-29.43 Ø6.3
ΔE Greyscale 11.13 | 0.64-98 Ø6.5
63% sRGB (Argyll 3D) 40% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.38
Lenovo ThinkPad A275
Len40E0, , 1366x768, 12.5
HP EliteBook 820 G3
LG Philips LGD0498, , 1366x768, 12.5
Lenovo ThinkPad X260-20F6007RGE
Lenovo N125HCE-GN1, , 1920x1080, 12.5
Lenovo Thinkpad 13-20J1001BUS
Lenovo LEN4094, , 1920x1080, 13.3
HP EliteBook 725 G4
AU Optronics, , 1920x1080, 12.5
Lenovo ThinkPad X270-20HMS00T00
Innolux N125HCE-GN1, , 1920x1080, 12.5
Response Times
-34%
1%
-15%
-10%
1041%
Response Time Grey 50% / Grey 80% *
41 (22, 19)
58 (24.8, 33.2)
-41%
32.8 (15.6, 17.2)
20%
32.8 (18, 14.8)
20%
47 (27, 20)
-15%
40.8 (21.2, 19.6)
-0%
Response Time Black / White *
23 (19, 4)
29.2 (12, 17.2)
-27%
27.2 (12.4, 14.8)
-18%
34.4 (21.2, 13.2)
-50%
24 (14, 10)
-4%
30.4 (16.4, 14)
-32%
PWM Frequency
800 (30)
26040 (50)
3155%
Screen
-4%
32%
18%
61%
30%
Brightness middle
255
244
-4%
337
32%
266.4
4%
329
29%
283
11%
Brightness
244
240
-2%
322
32%
250
2%
310
27%
281
15%
Brightness Distribution
87
84
-3%
91
5%
88
1%
88
1%
94
8%
Black Level *
0.52
0.6
-15%
0.32
38%
0.31
40%
0.19
63%
0.25
52%
Contrast
490
407
-17%
1053
115%
859
75%
1732
253%
1132
131%
Colorchecker DeltaE2000 *
9.76
9
8%
5.71
41%
5.3
46%
2.69
72%
6.1
37%
Colorchecker DeltaE2000 max. *
14.53
15.73
-8%
15.39
-6%
21
-45%
4.47
69%
15.4
-6%
Greyscale DeltaE2000 *
11.13
9.48
15%
5.15
54%
3.3
70%
4.23
62%
6
46%
Gamma
2.38 101%
2.44 98%
2.38 101%
2.36 102%
2.21 109%
2.05 117%
CCT
12214 53%
11116 58%
6881 94%
6843 95%
6011 108%
6832 95%
Color Space (Percent of AdobeRGB 1998)
40
37.18
-7%
42.38
6%
38
-5%
46
15%
42.26
6%
Color Space (Percent of sRGB)
63
58.63
-7%
65.62
4%
60
-5%
72
14%
65.43
4%
Total Average (Program / Settings)
-19% / -9%
17% / 27%
2% / 13%
26% / 49%
536% / 264%

* ... smaller is better

CalMAN gray scale
CalMAN gray scale
CalMAN gray scale (calibrated)
CalMAN gray scale (calibrated)
CalMAN saturation
CalMAN saturation
CalMAN saturation (calibrated)
CalMAN saturation (calibrated)
CalMAN ColorChecker
CalMAN ColorChecker
CalMAN ColorChecker (calibrated)
CalMAN ColorChecker (calibrated)

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
23 ms ... rise ↗ and fall ↘ combined↗ 19 ms rise
↘ 4 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. » 27 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (25.8 ms).
       Response Time 50% Grey to 80% Grey
41 ms ... rise ↗ and fall ↘ combined↗ 22 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 0.9 (minimum) to 636 (maximum) ms. » 49 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (41.3 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 800 Hz ≤ 30 % brightness setting

The display backlight flickers at 800 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 30 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 800 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 8813 (minimum: 43 - maximum: 142900) Hz was measured.

Systeminfo CPU-Z CPU
Systeminfo CPU-Z Cache
Systeminfo CPU-Z Mainboard
Systeminfo CPU-Z Memory
Systeminfo CPU-Z SPD
Systeminfo CPU-Z Grafik
Systeminfo GPU-Z Radeon R7
Systeminfo HWinfo Summary
Latency Monitor
 
0102030405060708090100110120130140150160170180190200210220230Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15
CPU Single 64Bit
HP Envy x360 15m-bq121dx
AMD Ryzen 5 2500U
137 Points ∼100% +83%
Lenovo ThinkPad X270-20HMS00T00
Intel Core i5-7200U
129 Points ∼94% +72%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
128 Points ∼93% +71%
HP EliteBook 820 G3
Intel Core i5-6300U
123 Points ∼90% +64%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
86 Points ∼63% +15%
HP EliteBook 725 G4
AMD PRO A12-9800B
77 Points ∼56% +3%
Lenovo ThinkPad A275
AMD PRO A12-9800B
75 Points ∼55%
CPU Multi 64Bit
HP Envy x360 15m-bq121dx
AMD Ryzen 5 2500U
574 Points ∼100% +155%
Lenovo ThinkPad X270-20HMS00T00
Intel Core i5-7200U
330 Points ∼57% +47%
Lenovo ThinkPad X260-20F6007RGE
Intel Core i7-6500U
324 Points ∼56% +44%
HP EliteBook 820 G3
Intel Core i5-6300U
311 Points ∼54% +38%
Lenovo Thinkpad 13-20J1001BUS
Intel Core i3-7100U
256 Points ∼45% +14%
HP EliteBook 725 G4
AMD PRO A12-9800B
229 Points ∼40% +2%
Lenovo ThinkPad A275
AMD PRO A12-9800B
225 Points ∼39%
Cinebench R15 CPU Single 64Bit
75 Points
Cinebench R15 OpenGL 64Bit
25.18 fps
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 CPU Multi 64Bit
225 Points
Hjälp
PCMark 8
Work Score Accelerated v2
Lenovo ThinkPad X270-20HMS00T00
HD Graphics 620, 7200U, Toshiba NVMe THNSF5512GPUK
4660 Points ∼100% +12%
HP EliteBook 820 G3
HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e
4581 Points ∼98% +10%
Lenovo ThinkPad X260-20F6007RGE
HD Graphics 520, 6500U, Liteonit LCH-512V2S
4341 Points ∼93% +4%
Lenovo ThinkPad A275
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
4156 Points ∼89%
Lenovo Thinkpad 13-20J1001BUS
HD Graphics 620, 7100U
4139 Points ∼89% 0%
HP EliteBook 725 G4
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
3885 Points ∼83% -7%
Home Score Accelerated v2
Lenovo ThinkPad X270-20HMS00T00
HD Graphics 620, 7200U, Toshiba NVMe THNSF5512GPUK
3575 Points ∼100% +22%
HP EliteBook 820 G3
HD Graphics 520, 6300U, Samsung SM951 MZVPV256HDGL m.2 PCI-e
3400 Points ∼95% +16%
HP Envy x360 15m-bq121dx
Vega 8, 2500U, HGST Travelstar 7K1000 HTS721010A9E630
3385 Points ∼95% +16%
Lenovo ThinkPad X260-20F6007RGE
HD Graphics 520, 6500U, Liteonit LCH-512V2S
3284 Points ∼92% +12%
Lenovo Thinkpad 13-20J1001BUS
HD Graphics 620, 7100U
3163 Points ∼88% +8%
Lenovo ThinkPad A275
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
2925 Points ∼82%
HP EliteBook 725 G4
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
2665 Points ∼75% -9%
PCMark 8 Home Score Accelerated v2
2925 poäng
PCMark 8 Work Score Accelerated v2
4156 poäng
Hjälp
Lenovo ThinkPad A275
Samsung PM961 MZVLW256HEHP
HP EliteBook 820 G3
Samsung SM951 MZVPV256HDGL m.2 PCI-e
Lenovo ThinkPad X260-20F6007RGE
Liteonit LCH-512V2S
Lenovo Thinkpad 13-20J1001BUS
 
HP EliteBook 725 G4
Samsung PM961 MZVLW256HEHP
CrystalDiskMark 3.0
106%
18%
-7%
12%
Write 4k QD32
94.87
343.9
262%
273.1
188%
162.2
71%
100.2
6%
Read 4k QD32
131.5
549.4
318%
316.5
141%
235.3
79%
139.7
6%
Write 4k
46.63
134.1
188%
83.55
79%
76.12
63%
47.35
2%
Read 4k
33.82
51.05
51%
27.22
-20%
34.46
2%
29.75
-12%
Write 512
870.2
811.3
-7%
372.4
-57%
247.2
-72%
890.1
2%
Read 512
943.4
1131
20%
322.9
-66%
315.7
-67%
948.7
1%
Write Seq
1133
1240
9%
403
-64%
331.3
-71%
1409
24%
Read Seq
1196
1255
5%
499.6
-58%
447.3
-63%
1963
64%
Samsung PM961 MZVLW256HEHP
Sequential Read: 1196 MB/s
Sequential Write: 1133 MB/s
512K Read: 943.4 MB/s
512K Write: 870.2 MB/s
4K Read: 33.82 MB/s
4K Write: 46.63 MB/s
4K QD32 Read: 131.5 MB/s
4K QD32 Write: 94.87 MB/s
3DMark - 1280x720 Cloud Gate Standard Graphics
HP Envy x360 15m-bq121dx
AMD Radeon RX Vega 8, AMD Ryzen 5 2500U
16285 Points ∼100% +197%
Lenovo IdeaPad 320S-13IKB
NVIDIA GeForce MX150, Intel Core i5-8250U
16227 Points ∼100% +196%
Lenovo ThinkPad X260-20F6007RGE
Intel HD Graphics 520, Intel Core i7-6500U
6287 Points ∼39% +15%
HP EliteBook 820 G3
Intel HD Graphics 520, Intel Core i5-6300U
6131 Points ∼38% +12%
Lenovo Thinkpad 13-20J1001BUS
Intel HD Graphics 620, Intel Core i3-7100U
5854 Points ∼36% +7%
Lenovo ThinkPad A275
AMD Radeon R7 (Bristol Ridge), AMD PRO A12-9800B
5481 Points ∼34%
HP EliteBook 725 G4
AMD Radeon R7 (Bristol Ridge), AMD PRO A12-9800B
5311 Points ∼33% -3%
3DMark Cloud Gate Standard Score
3942 poäng
Hjälp
BioShock Infinite - 1280x720 Very Low Preset
HP Envy x360 15m-bq121dx
Vega 8, 2500U, HGST Travelstar 7K1000 HTS721010A9E630
114.4 fps ∼100% +152%
Lenovo ThinkPad A275
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
45.4 fps ∼40%
Rise of the Tomb Raider - 1024x768 Lowest Preset
HP Envy x360 15m-bq121dx
Vega 8, 2500U, HGST Travelstar 7K1000 HTS721010A9E630
49.3 fps ∼100% +128%
Lenovo IdeaPad 320S-13IKB
GeForce MX150, 8250U, Samsung PM961 NVMe MZVLW512HMJP
47.33 fps ∼96% +119%
Lenovo ThinkPad A275
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
21.6 fps ∼44%
Battlefield 4 - 1024x768 Low Preset
Lenovo ThinkPad A275
Radeon R7 (Bristol Ridge), PRO A12-9800B, Samsung PM961 MZVLW256HEHP
29 fps ∼100%
låg med. hög ultra
BioShock Infinite (2013) 45.426.923fps
Battlefield 4 (2013) 2920.112.6fps
Rise of the Tomb Raider (2016) 21.613.27fps

Ljudnivå

Låg belastning
30.15 / 30.4 / 32.4 dB(A)
Hög belastning
32.4 / 32.4 dB(A)
  red to green bar
 
 
30 dB
tyst
40 dB(A)
hörbar
50 dB(A)
högt ljud
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm avstånd)   environment noise: 30.15 dB(A)
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2033.832.634.439.62531.933.831.436.13138.637.835.540.64033.532.231.635.3503130.630.136.46329.428.929.344.18026.327.227.329.610026.627.326.829.612524.824.323.733.916024.323.823.428.720023.322.622.226.125022.22221.52431521.821.520.823.340021.520.819.92250020.52019.521.163020.319.318.220.780019.619.51820.7100019.419.617.820.8125019.21917.420.216002019.917.220.6200020.12017.520.4250019.719.917.420.2315021.821.817.521.7400021.121.517.721.3500020.520.717.920.6630019.419.51820.1800019.319.51820.71000018.81918.219.41250019.5211819.31600021.920.918.322.1SPL32.432.430.233.3N1.71.71.42median 20.5Lenovo ThinkPad A275median 20.7median 18median 20.8Delta1.31.11.31.432.232.633.331.432.23131.231.932.53135.436.236.936.335.430.430.630.128.930.429.831.231.23129.829.32927.329.429.327.827.525.725.527.825.825.926.424.925.824.624.425.425.124.623.52424.423.223.523.622.622.722.923.622.222.321.821.422.221.921.621.721.121.921.121.220.32021.120.320.719.819.220.32019.218.718.6202119.418.818.32123.420.518.218.123.422.119.71817.622.121.818.917.717.621.82320.717.917.82326.72017.717.926.723.519.117.817.823.521.418.818.118.121.421.118.918.418.321.120.418.718.318.420.418.918.518.618.518.918.618.618.718.618.618.518.518.418.418.518.518.518.618.418.534.431.730.630.434.421.61.51.42median 21.8HP EliteBook 725 G4median 19.7median 18.6median 18.4median 21.81.51.21.81.81.5hearing rangehide median Fan Noise
Hög belastning
 38.7 °C31 °C27.1 °C 
 37 °C37.2 °C31.2 °C 
 29.3 °C27 °C25.6 °C 
Max: 38.7 °C
Medel: 31.6 °C
27.7 °C38.2 °C42.6 °C
32.1 °C40.5 °C47 °C
24.6 °C26.9 °C34.5 °C
Max: 47 °C
Medel: 34.9 °C
Strömförsörjning (max.)  36.7 °C | Rumstemperatur 21.7 °C | FIRT 550-Pocket
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2034.432.934.42537.536.137.53137.937.237.94035.433.635.45032.63132.66328.830.628.88026.227.326.210026.127.626.112526.325.826.316030.224.430.22003223.43225047.521.647.531557.321.457.340063.72063.750060.319.960.363056.21956.28006318.56310006017.960125053.317.853.3160055.517.455.5200062.117.462.1250057.217.757.231505317.853400056.61856.6500053.118.153.163005818.258800061.118.361.11000059.618.259.61250056.218.256.21600051.918.351.9SPL70.730.470.7N28.21.428.2median 56.2Lenovo ThinkPad A275median 18.3median 56.2Delta61.9634.634.734.7353534.434.434.434.233.733.732.73535.935.935.734.335.635.634.833.633.233.237.731.932.232.23739.539.639.63737.3373737.831.430.230.231.833292940.239.529.129.15048.127.827.858.951.4272761.254.2262664.457.125.425.467.155.3252565.35224.524.561.950.424.324.360.851.223.923.961.151.423.523.561.853.323.423.463.755.523.123.165.957.8232368.756.7232367.360.1232370.363.922.822.873.667.222.722.777.664.522.422.474.652.622.222.262.8median 52.6HP EliteBook 820 G3median 24.3median 24.3median 62.85.7337.13737.63535.13433.432.532.133.432.130.832.231.431.930.430.329.731.427.545.626.745.326.556.826.162.825.563.624.961.923.759.423.165.122.767.222.563.222.464.222.362.322.158.221.85721.96521.959.721.960.821.76221.964.222.268.62259.934.875.12.337.2median 22.5Lenovo Thinkpad 13-20J1001BUSmedian 61.92.15.2hearing rangehide median Pink Noise
Lenovo ThinkPad A275 audio analysis

(-) | not very loud speakers (63.7 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 20% lower than median
(±) | linearity of bass is average (13.8% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4% away from median
(±) | linearity of mids is average (13% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.5% away from median
(±) | linearity of highs is average (9.7% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (19.9% difference to median)
Compared to same class
» 64% of all tested devices in this class were better, 4% similar, 32% worse
» The best had a delta of 8%, average was 19%, worst was 47%
Compared to all devices tested
» 41% of all tested devices were better, 6% similar, 52% worse
» The best had a delta of 3%, average was 21%, worst was 53%

HP EliteBook 820 G3 audio analysis

(±) | speaker loudness is average but good (76.5 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 20.2% lower than median
(±) | linearity of bass is average (14.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2% away from median
(+) | mids are linear (5% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 6.7% higher than median
(+) | highs are linear (6.9% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (22.1% difference to median)
Compared to same class
» 71% of all tested devices in this class were better, 4% similar, 25% worse
» The best had a delta of 8%, average was 19%, worst was 47%
Compared to all devices tested
» 55% of all tested devices were better, 7% similar, 38% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Lenovo Thinkpad 13-20J1001BUS audio analysis

(±) | speaker loudness is average but good (75.1 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 16.8% lower than median
(±) | linearity of bass is average (14.7% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.1% away from median
(+) | mids are linear (6.3% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.5% away from median
(±) | linearity of highs is average (8.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (15.9% difference to median)
Compared to same class
» 19% of all tested devices in this class were better, 5% similar, 77% worse
» The best had a delta of 8%, average was 20%, worst was 51%
Compared to all devices tested
» 21% of all tested devices were better, 4% similar, 76% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Strömförbrukning
Av/Standbydarklight 0.48 / 0.6 Watt
Låg belastningdarkmidlight 4.2 / 8.2 / 10 Watt
Hög belastning midlight 34.5 / 37 Watt
 color bar
Förklaring: min: dark, med: mid, max: light        Metrahit Energy
Lenovo ThinkPad A275
PRO A12-9800B, Radeon R7 (Bristol Ridge), Samsung PM961 MZVLW256HEHP, TN, 1366x768, 12.5
HP EliteBook 820 G3
6300U, HD Graphics 520, Samsung SM951 MZVPV256HDGL m.2 PCI-e, TN LED, 1366x768, 12.5
Lenovo ThinkPad X260-20F6007RGE
6500U, HD Graphics 520, Liteonit LCH-512V2S, IPS, 1920x1080, 12.5
Lenovo Thinkpad 13-20J1001BUS
7100U, HD Graphics 620, , IPS, 1920x1080, 13.3
HP EliteBook 725 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge), Samsung PM961 MZVLW256HEHP, IPS, 1920x1080, 12.5
Power Consumption
21%
17%
28%
12%
Idle Minimum *
4.2
3.5
17%
3.5
17%
3.5
17%
4.5
-7%
Idle Average *
8.2
5.4
34%
5.5
33%
5.7
30%
6.3
23%
Idle Maximum *
10
6.2
38%
6.7
33%
6.2
38%
8.3
17%
Load Average *
34.5
27.3
21%
28.9
16%
24.1
30%
27.6
20%
Load Maximum *
37
39.5
-7%
42.1
-14%
28.5
23%
34.5
7%

* ... smaller is better

Batteritid
Låg belastning (utan WLAN, min. ljusstyrka)
16tim 01min
NBC WiFi Websurfing Battery Test 1.3
8tim 58min
Hög belastning (maximal ljusstyrka)
4tim 03min
Lenovo ThinkPad A275
PRO A12-9800B, Radeon R7 (Bristol Ridge), 71 Wh
HP EliteBook 820 G3
6300U, HD Graphics 520, 44 Wh
Lenovo ThinkPad X260-20F6007RGE
6500U, HD Graphics 520, 46 Wh
Lenovo Thinkpad 13-20J1001BUS
7100U, HD Graphics 620, 42 Wh
HP EliteBook 725 G4
PRO A12-9800B, Radeon R7 (Bristol Ridge), 49 Wh
Battery Runtime
-29%
-23%
-14%
-35%
Reader / Idle
961
826
-14%
953
-1%
989
3%
700
-27%
WiFi v1.3
538
373
-31%
501
-7%
580
8%
380
-29%
Load
243
144
-41%
92
-62%
113
-53%
123
-49%
H.264
495
466
344

För

+ bekväma ThinkPad-inmatningsenheter
+ ett flertal batterialternativ tack vare PowerBridge
+ en mängd portar för att vara en kompakt laptop
+ väldigt lång batteritid
+ tyst och sval

Emot

- basenhet som böjer sig
- skärmen för mörk på batteri
- dåliga betraktningsvinklar (TN-skärm)
- dålig färgrymdstäckning
- jämförelsevis dålig prestanda
- komplicerad att underhålla
Lenovo ThinkPad A275. Review unit courtesy of Lenovo Germany.
Lenovo ThinkPad A275. Review unit courtesy of Lenovo Germany.

A275 är verkligen ingen efterföljare till ThinkPad Edge-serien. Även om dess kvalitetsnivå till viss del påminner om den nedlagda lågskikts-serien Edge och vi var väldigt besvikna på basens brist på rigiditet så är dom andra kvaliteterna hos A275 i nivå med andra subnotebooks från mittenskiktet såsom ThinkPad 13 eller X260.

Det som imponerade på oss mest var dom högkvalitativa inmatningsenheterna som till 95% liknar dom hos ThinkPad 13 i fråga om återkoppling och upplägg. Portutbudet är också utmärkt, med Ethernet, 3st USB 3.0 Gen. 1 och DisplayPort pass-through stöd för USB Typ-C porten. Säkerhetsfunktionerna inkluderar en snabb och pålitlig fingeravtrycksläsare, en smartcard-läsare och ett TPM 2.0-chip.

Den största nackdelen var i särklass den TN-panelsbaserade HD-skärmen. Vi uppmanar kraftigt köpare att välja FHD-panelen istället – den passar ändamålet mycket bättre än HD-panelen.

Med underhållsmöjligheterna är det lite blandat. Även om det externa batteriet kan bytas under körning tack vare det primära inbyggda icke-utbytbara batteriet på 23 Wh så saknar A275 en dedikerat underhålls-lucka. Hela den övre delen av höljet behöver tas bort för att komma åt dess SSD (M.2), fläkten eller den enda RAM-platsen.

Allt övervägt så är A275 definitivt en duglig arbetshäst med onekbara kvaliteter såsom 9 timmars batteritid i vårt WiFi-test, utmärkta inmatningsenheter, dess överflöd av portar och dess säkerhetsfunktioner. Men för över 8 100 SEK ($1,000) så tycker vi den är en aning dyr med tanke på dess långsamma och vid det här laget utdaterade AMD Bristol Ridge SoC.

HP EliteBook 820 G3 utrustad med snabbare i5-6200U Skylake-processorer går redan att hitta för under 8 100 SEK ($1,000), och det gäller även ThinkPad 13 G2 utrustad med i5-7200U.

Vi har stora problem med att hitta en övertygande anledning att köpa denna specifika laptop utöver det faktum att HP:s Bristol Ridge-baserade EliteBook 725 G4 kostar ungefär lika mycket. Men vi anser att även den har ett för högt pris. Ett pris på under 8 100 SEK ($1,000) hade varit rimligare för att kompensera för den tydligt långsammare prestandan.

Lenovo ThinkPad A275 - 12/21/2017 v6
Sebastian Jentsch

Design
68 /  98 → 69%
Tangentbord
91%
Mus
87%
Anslutningar
62 / 80 → 77%
Vikt
68 / 35-78 → 76%
Batteri
91%
Skärm
73%
Spelprestanda
54 / 68 → 80%
Programprestanda
71 / 87 → 82%
Temperatur
91 / 91 → 100%
Ljudnivå
93%
Audio
50 / 91 → 55%
Camera
31 / 85 → 37%
Medel
72%
82%
Subnotebook - Vägt medel

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> Bärbara datorer, laptops - tester och nyheter > Tester > Test: Lenovo ThinkPad A275 (A12-9800B, 256GB) Laptop (Sammanfattning)
Sebastian Jentsch, 2018-01-11 (Update: 2018-01-12)