Notebookcheck

惠普 ProBook 655 G2 T9X09ET 笔记本简短评测

Sascha Mölck, Stefanie Voigt (translated by Jinze Lu), 10/29/2016
AMD Business Carrizo Laptop / Notebook Windows

AMD @商务.. 对于ProBook 655 G2来说,大约790欧元(~5852人民币)的价格不可忽视。以这个价格,你可以得到一台搭载良好输入设备,外壳坚固而且运行安静的商务笔记本。但不幸的是,655 G2的屏幕再次成了一个败笔。

点击here以浏览原版德文翻译。

惠普为ProBook 655 G2使用了与其姐妹型号ProBook 650 G2相同的外观设计,而我们已经测评过后者了。650 G2型号都采用了Intel的处理器,655 G2系列则采用了AMD的APU,其主要竞争对手机型为联想ThinkPad L560,戴尔Latitude 15 E5570还有宏碁TravelMate P658-M。

由于655 G2和650 G2模具相同,我们将不会再详细评测其外壳,输入设备以及扬声器等外设,除非655 G2作出了任何改动。详细的外设测评可以在ProBook 650 G2 T9X61ET的测评中找到。

HP ProBook 655 G2 T9X09ET (ProBook 655 Series)
Processor
AMD Pro A8-8600B
Graphics adapter
AMD Radeon R6 (Carrizo), Core: 300-720 MHz, 单通道, Crimson 16.7.3 (16.300.2311.0)
Memory
4096 MB 
, DDR3-1600, 单通道, 双内存槽(一槽可用,一槽已占)
Display
15.6 inch 16:9, 1366 x 768 pixel 100 PPI, BOE, TN LED屏, glossy: no
Mainboard
AMD CZ FCH
Storage
Seagate ST500LM021-1KJ15, 500 GB 
, 5400 rpm, 420 GB free
Soundcard
Conexant CX20724 @ AMD K15.6 - High Definition Audio Controller
Connections
3 USB 3.0 / 3.1 Gen1, 1 VGA, 1 DisplayPort, 1 Kensington Lock, 1 Serial Port, 1 Docking Station Port, Audio Connections: 音频组合, Card Reader: SD卡读卡器, 1 SmartCard, 1 Fingerprint Reader, Brightness Sensor
Networking
Realtek RTL8168/8111 Gigabit-LAN (10/100/1000/2500/5000MBit/s), Broadcom BCM43228 (a/b/g/n = Wi-Fi 4), Bluetooth 4
Optical drive
HP DVDRW GUD1N
Size
height x width x depth (in mm): 27.4 x 378 x 257
Battery
48 Wh Lithium-Ion
Operating System
Microsoft Windows 7 Professional (64 Bit) + Windows 10 Pro (64 Bit)
Camera
Webcam: HD高清
Additional features
Speakers: 立体声, Keyboard: 巧克力键盘, Keyboard Light: no, Windows 10 DVD, 驱动DVD, 迅连Cyberlink Power2Go, 讯连Cyberlink PowerDVD 12, 讯连Cyberlink YouCam, 微软MS Office (试用版), 12 Months Warranty
Weight
2.31 kg, Power Supply: 297 g
Price
899欧元(~6689人民币) Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

外设设备

ProBook 655 G2和ProBook 650 G2在外部设备方面区别很小。650 G2使用了DDR4类型的内存,而655 G2使用了DDR3类型的内存。还有,655 G2的读卡器速度比650 G2的读卡器稍慢。使用655 G2转换250张JPG格式的图片(每张大小约5MB)能达到36.3 MB/s的速度(650 G2速度约为60 MB/s)。我们使用了东芝Exceria Pro SDXC UHS-II 64GB型号SD卡测试了读卡器。

SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Dell Latitude 15 E5570
 
155 MB/s ∼100% +327%
Lenovo ThinkPad L560-20F10026GE
 
85.38 MB/s ∼55% +135%
Acer TravelMate P658-M-537B
 
68.1 MB/s ∼44% +88%
HP ProBook 650 G2-T9X61ET
 
60.2 MB/s ∼39% +66%
HP ProBook 650 G2 V1A44ET
 
57.3 MB/s ∼37% +58%
HP ProBook 655 G2 T9X09ET
 
36.3 MB/s ∼23%
maximum AS SSD Seq Read Test (1GB)
HP ProBook 650 G2-T9X61ET
 
88.2 MB/s ∼100%
Lenovo ThinkPad L560-20F10026GE
 
72.3 MB/s ∼82%
Networking
iperf Server (receive) TCP 1 m
HP ProBook 650 G2 V1A44ET
Intel Dual Band Wireless-AC 8260 (jseb)
234 MBit/s ∼100% +81%
HP ProBook 655 G2 T9X09ET
Broadcom BCM43228 (jseb)
129 MBit/s ∼55%
Dell Latitude 15 E5570
Intel Dual Band Wireless-AC 8260
77.4 MBit/s ∼33% -40%
iperf Client (transmit) TCP 1 m
HP ProBook 650 G2 V1A44ET
Intel Dual Band Wireless-AC 8260 (jseb)
79 MBit/s ∼100% +58%
Dell Latitude 15 E5570
Intel Dual Band Wireless-AC 8260
58 MBit/s ∼73% +16%
HP ProBook 655 G2 T9X09ET
Broadcom BCM43228 (jseb)
50 MBit/s ∼63%

显示

Pixel grid
Pixel grid
Continuous PWM in battery operation (@max. brightness) at 200 Hz!
Continuous PWM in battery operation (@max. brightness) at 200 Hz!

这台ProBook搭载着一块雾面的15.6英寸屏,原生分辨率为1366x768像素。其亮度(201.8  cd/m²)以及对比度(371:1)参数很差。除此以外,这块屏幕在亮度低于等于90%的时候会出现频率为200Hz的PWM调光闪烁情况。这很可能会对一些敏感的用户造成头疼和伤眼等问题。很不幸的事,坏消息还不止这些,这台电脑在未接入电源适配器的时候亮度会大幅降低,因此PWM闪屏问题会一直出现,而用户并没有办法解决。也正因此,对这块屏幕的评价还要更差一筹。

228
cd/m²
219
cd/m²
236
cd/m²
230
cd/m²
248
cd/m²
233
cd/m²
217
cd/m²
230
cd/m²
226
cd/m²
Distribution of brightness
BOE
X-Rite i1Pro 2
Maximum: 248 cd/m² Average: 229.7 cd/m² Minimum: 11.8 cd/m²
Brightness Distribution: 88 %
Center on Battery: 248 cd/m²
Contrast: 443:1 (Black: 0.56 cd/m²)
ΔE Color 8.7 | 0.6-29.43 Ø6
ΔE Greyscale 11.48 | 0.64-98 Ø6.3
67% sRGB (Argyll 3D) 42% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.38
HP ProBook 655 G2 T9X09ET
TN LED, 1366x768
HP ProBook 650 G2 V1A44ET
TN LED, 1920x1080
HP ProBook 650 G2-T9X61ET
TN LED, 1366x768
Dell Latitude 15 E5570
TN LED, 1366x768
Lenovo ThinkPad L560-20F10026GE
AH-IPS, 1920x1080
Acer TravelMate P658-M-537B
IPS, 1920x1080
Response Times
5%
-1%
0%
7%
14%
Response Time Grey 50% / Grey 80% *
44 (21, 23)
41 (23, 18)
7%
40.4 (19.6, 20.8)
8%
47 (22, 25)
-7%
39.2 (18.8, 20.4)
11%
38 (14, 24)
14%
Response Time Black / White *
29 (9, 20)
27 (10, 17)
7%
32 (18.8, 13.2)
-10%
27 (10, 17)
7%
28 (12.4, 15.6)
3%
25 (6, 19)
14%
PWM Frequency
200 (90)
200 (90)
0%
200 (90)
0%
Screen
2%
-3%
-4%
16%
27%
Brightness middle
248
313
26%
247
0%
228
-8%
262
6%
308
24%
Brightness
230
296
29%
223
-3%
236
3%
250
9%
319
39%
Brightness Distribution
88
90
2%
85
-3%
90
2%
92
5%
71
-19%
Black Level *
0.56
0.59
-5%
0.61
-9%
0.56
-0%
0.29
48%
0.61
-9%
Contrast
443
531
20%
405
-9%
407
-8%
903
104%
505
14%
Colorchecker DeltaE2000 *
8.7
11.89
-37%
8.8
-1%
10.02
-15%
8.49
2%
4.51
48%
Colorchecker DeltaE2000 max. *
14.96
20.81
-39%
15.98
-7%
15.93
-6%
17.99
-20%
10.19
32%
Greyscale DeltaE2000 *
11.48
12.95
-13%
10.13
12%
10.66
7%
8.11
29%
2.91
75%
Gamma
2.38 92%
2.4 92%
2.34 94%
2.48 89%
2.37 93%
2.4 92%
CCT
11179 58%
15063 43%
12581 52%
11800 55%
6300 103%
6740 96%
Color Space (Percent of AdobeRGB 1998)
42
50
19%
39.6
-6%
39
-7%
37.07
-12%
56
33%
Color Space (Percent of sRGB)
67
78
16%
62.2
-7%
61
-9%
57.94
-14%
86
28%
Total Average (Program / Settings)
4% / 2%
-2% / -3%
-2% / -3%
12% / 14%
21% / 24%

* ... smaller is better

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 Hz ≤ 90 % 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: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9418 (minimum: 43 - maximum: 142900) Hz was measured.

出厂设置状态下的屏幕在DeltaE-2000测试中得出其色差值为8.7。屏幕在此项目下的理想得分应小于3。而且,这块屏幕显示色调明显偏蓝。

CalMAN - ColorChecker
CalMAN - ColorChecker
CalMAN - Grayscale
CalMAN - Grayscale
CalMAN - Saturation Sweeps
CalMAN - Saturation Sweeps

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
29 ms ... rise ↗ and fall ↘ combined↗ 9 ms rise
↘ 20 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 0.8 (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 (25 ms).
       Response Time 50% Grey to 80% Grey
44 ms ... rise ↗ and fall ↘ combined↗ 21 ms rise
↘ 23 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. » 65 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (39.8 ms).

惠普赋予了这台ProBook一块可视角度很低的TN屏。这块屏幕在任何角度都几乎无法轻易看清显示内容。这台笔记本无法在室外使用。在未接入电源适配器时它的屏幕亮度甚至会降到81  cd/m²。

The ProBook outdoors
The ProBook outdoors

性能

惠普ProBook 655 G2属于中端定位的商务笔记本。它搭载了一个扩展槽,一块TPM安全芯片还有一个指纹识别器。如果有需求也可以再加装一块LTE调解器模块。我们的测试机可以通过约790欧元(~5878人民币)的价格购买到。当然还有其他可选的配置。他的定价最高可以贵于同级搭载Intel处理器的650 G2系列笔记本。

处理器

HWInfo
HWInfo

这台电脑装载着一块AMD的Pro A8-8600B (Carrizo架构)处理器。这块APU由一个频率为1.6GHz的四核处理器,其动态加速的最高频率理论上可达3.0GHz。我们的测试机的APU在测试下达到了2.1GHz的速度。而在单线程性能测试中其速度偶尔也达到了3.0GHz。 其动态加速频率如此之低的原因在于它的TDP。惠普将他的TDP设置到了15瓦,使它的功耗与Intel的ULV超低压处理器同级。正因此,这块CPU必须以更低的性能来换取低压的实现。

Cinebench R10 Shading 32Bit
4282
Cinebench R10 Rendering Multiple CPUs 32Bit
5885
Cinebench R10 Rendering Single 32Bit
2111
Cinebench R11.5 OpenGL 64Bit
17.82 fps
Cinebench R11.5 CPU Multi 64Bit
2.18 Points
Cinebench R11.5 CPU Single 64Bit
0.81 Points
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 OpenGL 64Bit
22.04 fps
Cinebench R15 CPU Multi 64Bit
181 Points
Cinebench R15 CPU Single 64Bit
69 Points
Help
Cinebench R15
CPU Single 64Bit
Dell Latitude 15 E5570
Intel Core i5-6300U
124 Points ∼57% +80%
Lenovo ThinkPad L560-20F10026GE
Intel Core i5-6200U
116 Points ∼53% +68%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
116 Points ∼53% +68%
HP ProBook 650 G2-T9X61ET
Intel Core i5-6200U
110 Points ∼50% +59%
Lenovo ThinkPad E560 20EV000MGE
Intel Core i3-6100U
98 Points ∼45% +42%
Acer TravelMate P658-M-537B
Intel Core i5-6200U
78 Points ∼36% +13%
HP EliteBook 745 G3
AMD Pro A12-8800B
72 Points ∼33% +4%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
70 Points ∼32% +1%
HP ProBook 655 G2 T9X09ET
AMD Pro A8-8600B
69 Points ∼32%
HP EliteBook 725 G2
AMD A10 Pro-7350B
55 Points ∼25% -20%
HP ProBook 455 G2
AMD A6 Pro-7050B
49 Points ∼22% -29%
CPU Multi 64Bit
Dell Latitude 15 E5570
Intel Core i5-6300U
310 Points ∼7% +71%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
291 Points ∼7% +61%
Lenovo ThinkPad L560-20F10026GE
Intel Core i5-6200U
290 Points ∼7% +60%
HP ProBook 650 G2-T9X61ET
Intel Core i5-6200U
288 Points ∼7% +59%
Lenovo ThinkPad E560 20EV000MGE
Intel Core i3-6100U
251 Points ∼6% +39%
Acer TravelMate P658-M-537B
Intel Core i5-6200U
219 Points ∼5% +21%
HP EliteBook 745 G3
AMD Pro A12-8800B
202 Points ∼5% +12%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
192 Points ∼4% +6%
HP ProBook 655 G2 T9X09ET
AMD Pro A8-8600B
181 Points ∼4%
HP EliteBook 725 G2
AMD A10 Pro-7350B
151 Points ∼3% -17%
HP ProBook 455 G2
AMD A6 Pro-7050B
82 Points ∼2% -55%
Geekbench 3
32 Bit Multi-Core Score
Dell Latitude 15 E5570
Intel Core i5-6300U
6172 Points ∼8% +48%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
5718 Points ∼7% +37%
Lenovo ThinkPad E560 20EV000MGE
Intel Core i3-6100U
4804 Points ∼6% +15%
HP EliteBook 745 G3
AMD Pro A12-8800B
4691 Points ∼6% +12%
HP ProBook 655 G2 T9X09ET
AMD Pro A8-8600B
4173 Points ∼5%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
2728 Points ∼3% -35%
HP ProBook 455 G2
AMD A6 Pro-7050B
1902 Points ∼2% -54%
32 Bit Single-Core Score
Dell Latitude 15 E5570
Intel Core i5-6300U
2874 Points ∼59% +55%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
2661 Points ∼55% +43%
Lenovo ThinkPad E560 20EV000MGE
Intel Core i3-6100U
2188 Points ∼45% +18%
HP EliteBook 745 G3
AMD Pro A12-8800B
1969 Points ∼40% +6%
HP ProBook 655 G2 T9X09ET
AMD Pro A8-8600B
1858 Points ∼38%
HP ProBook 455 G2
AMD A6 Pro-7050B
1255 Points ∼26% -32%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
950 Points ∼19% -49%
JetStream 1.1 - Total Score
HP ProBook 650 G2-T9X61ET
Intel Core i5-6200U
194.11 Points ∼55% +216%
Dell Latitude 15 E5570
Intel Core i5-6300U
119.79 Points ∼34% +95%
HP ProBook 650 G2 V1A44ET
Intel Core i5-6200U
112.57 Points ∼32% +83%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
111.17 Points ∼32% +81%
HP EliteBook 725 G3-P4T48EA
AMD Pro A10-8700B
66.403 Points ∼19% +8%
Lenovo ThinkPad L560-20F10026GE
Intel Core i5-6200U
110.11 Points ∼31% +79%
Lenovo ThinkPad E560 20EV000MGE
Intel Core i3-6100U
93.761 Points ∼27% +53%
HP EliteBook 745 G3
AMD Pro A12-8800B
69.06 Points ∼20% +12%
HP ProBook 655 G2 T9X09ET
AMD Pro A8-8600B
61.4 Points ∼17%

系统性能

这台笔记本运行系统十分流畅,我们使用的时候并没遇到任何问题。它在PCMark基准测试中的得分也属优良。如若基准测试总分突然出现误差也不并不出人意料。当我们往机器中加装第二根内存条,它的内存双通道模式便开启了,而且这还增强了它的图形计算性能。把HDD机械硬盘替换成SSD固态硬盘之后系统运行极为流畅。而且测试下,它的完全充电时间也缩短了。

PCMark 7 Score
1888 points
PCMark 8 Home Score Accelerated v2
2634 points
PCMark 8 Creative Score Accelerated v2
2607 points
PCMark 8 Work Score Accelerated v2
3577 points
Help
PCMark 8 - Home Score Accelerated v2
Acer TravelMate P658-M-537B
HD Graphics 520, 6200U, Kingston RBU-SNS8152S3256GG2
3475 Points ∼57% +32%
Dell Latitude 15 E5570
HD Graphics 520, 6300U, Samsung SSD PM871 MZ7LN128HCHP
3282 Points ∼54% +25%
HP ProBook 650 G2 V1A44ET
HD Graphics 520, 6200U, Sandisk X300 SD7SN6S-256G-1006
3234 Points ∼53% +23%
HP ProBook 650 G2-T9X61ET
HD Graphics 520, 6200U, Hitachi Travelstar Z7K500 HTS725050A7E630
3229 Points ∼53% +23%
Lenovo ThinkPad L560-20F10026GE
HD Graphics 520, 6200U, WDC Slim WD10SPCX-21KHST0
2886 Points ∼47% +10%
HP ProBook 655 G2 T9X09ET
Radeon R6 (Carrizo), Pro A8-8600B, Seagate ST500LM021-1KJ15
2634 Points ∼43%

储存设备

这台ProBook原装有一块2.5英寸的机械硬盘,它的转速为7200rpm,容量为500GB。测试下这块硬盘的文件传送速度和一般7200rpm的硬盘没什么区别。当然,消费者也可以选择一块M.2 2280格式的固态硬盘来代替这块2.5英寸的传统机械硬盘。由于只有一个硬盘位,没有办法同时使用一块2.5英寸传统机械硬盘和一块M.2 2280的固态硬盘。

Seagate ST500LM021-1KJ15
Transfer Rate Minimum: 58.1 MB/s
Transfer Rate Maximum: 134.9 MB/s
Transfer Rate Average: 105.9 MB/s
Access Time: 16.4 ms
Burst Rate: 124.6 MB/s
HP ProBook 655 G2 T9X09ET
Seagate ST500LM021-1KJ15
HP ProBook 650 G2 V1A44ET
Sandisk X300 SD7SN6S-256G-1006
HP ProBook 650 G2-T9X61ET
Hitachi Travelstar Z7K500 HTS725050A7E630
Dell Latitude 15 E5570
Samsung SSD PM871 MZ7LN128HCHP
Lenovo ThinkPad L560-20F10026GE
WDC Slim WD10SPCX-21KHST0
Acer TravelMate P658-M-537B
Kingston RBU-SNS8152S3256GG2
CrystalDiskMark 3.0
11683%
-1%
11238%
31%
9947%
Write 4k QD32
0.672
154.1
22832%
0.787
17%
100.2
14811%
1.036
54%
211.4
31358%
Read 4k QD32
0.778
347.2
44527%
0.656
-16%
383.3
49167%
1.367
76%
226.2
28975%
Write 4k
0.641
98.74
15304%
0.798
24%
96.59
14969%
1.022
59%
64.67
9989%
Read 4k
0.357
32.71
9062%
0.351
-2%
34
9424%
0.488
37%
25.66
7088%
Write 512
51.35
265.5
417%
45.71
-11%
119.7
133%
55.33
8%
320.5
524%
Read 512
33.53
280.4
736%
30.66
-9%
393.6
1074%
39.65
18%
418
1147%
Write Seq
110.7
435
293%
109.1
-1%
155
40%
111.7
1%
333.1
201%
Read Seq
122.1
475
289%
109.6
-10%
474.7
289%
113.6
-7%
479.1
292%

图形处理器(显卡)

GPU-Z
GPU-Z

这台机器所用的AMD Radeon R6融合独显完全可以承担其图像输出的任务。这块显卡支持DirectX 12,最高频率理论至少可达720 MHz。这块显卡的核心频率一般都不会超过654MHz。其在3DMark基准测试得出的分数与Intel的HD Graphics 520核心显卡处在同一级别。如果这台笔记本电脑中加装了第二根内存条(=开启双通道模式),那么它的图形性能会更强,这也会使其在3DMark测试得出的分数更高。

3DMark 11 Performance
1348 points
Help
3DMark 11 - 1280x720 Performance GPU
HP ProBook 655 G2 T9X09ET
AMD Radeon R6 (Carrizo), AMD Pro A8-8600B
1349 Points ∼3%
Acer TravelMate P658-M-537B
Intel HD Graphics 520, Intel Core i5-6200U
1347 Points ∼3% 0%
HP ProBook 650 G2-T9X61ET
Intel HD Graphics 520, Intel Core i5-6200U
1305 Points ∼3% -3%
Dell Latitude 15 E5570
Intel HD Graphics 520, Intel Core i5-6300U
1296 Points ∼3% -4%
Lenovo ThinkPad L560-20F10026GE
Intel HD Graphics 520, Intel Core i5-6200U
1225 Points ∼2% -9%
HP ProBook 650 G2 V1A44ET
Intel HD Graphics 520, Intel Core i5-6200U
1220 Points ∼2% -10%

游戏性能

电脑所搭载的APU可以流畅的玩不少游戏。但是,用户必须妥协于低分辨率以及选择更低的画面画质选项。这种妥协适用于玩那些对硬件要求适中的游戏。比如古墓丽影崛起的这类硬件杀手游戏是完全不可玩的。通过加装第二根内存条(=开启双通道模式)可以稍微提升游戏帧率。

low med. high ultra
BioShock Infinite (2013) 42.222.918.2fps

Emissions & Energy Management

系统噪音

Fan noise
Fan noise

正如其姐妹型号笔记本ProBook 650 G2,这台ProBook 655 G2几乎不会产生任何噪音。在低功耗使用情况下它的风扇处在一个低转速的状态。由于机械硬盘的噪音,风扇的声音几乎听不到。而且,即使在压力测试下,这个风扇也几乎不会怎么转。我们的测试结果,这个风扇的响度在33.5分贝,算是非常优秀。但是,CPU和GPU在压力测试中发生了可见的明显降频。

Noise Level

Idle
31.6 / 31.6 / 31.6 dB(A)
HDD
31.7 dB(A)
DVD
37 / dB(A)
Load
33.5 / 33.5 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm distance)   environment noise: 31.5 dB(A)

温度

The ProBook in the stress test
The ProBook in the stress test

用这台ProBook 655 G2运行压力测试(Prime95以及Furmark至少持续运行一小时),无论电源适配器是否接入,结果都是一样的。它的CPU和GPU会高速运行很短一会儿,然后处理器降频到了1.2GHz,显卡更是降频到了300MHz。所以这台电脑的温度上升很温和。整个测试经过,它的温度从没高于过40摄氏度。

Max. Load
 33.5 °C35.8 °C31.9 °C 
 26.6 °C34.1 °C31.5 °C 
 23.9 °C25 °C26.4 °C 
Maximum: 35.8 °C
Average: 29.9 °C
32.8 °C36.1 °C37.6 °C
33.6 °C32.8 °C31 °C
28.6 °C30.3 °C25.7 °C
Maximum: 37.6 °C
Average: 32.1 °C
Power Supply (max.)  41.8 °C | Room Temperature 22.4 °C | FIRT 550-Pocket
(+) The average temperature for the upper side under maximal load is 29.9 °C / 86 F, compared to the average of 29.4 °C / 85 F for the devices in the class Office.
(+) The maximum temperature on the upper side is 35.8 °C / 96 F, compared to the average of 33.9 °C / 93 F, ranging from 21.2 to 62.5 °C for the class Office.
(+) The bottom heats up to a maximum of 37.6 °C / 100 F, compared to the average of 36.4 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 27.6 °C / 82 F, compared to the device average of 29.4 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 26.4 °C / 79.5 F and are therefore cool to the touch.
(±) The average temperature of the palmrest area of similar devices was 28.1 °C / 82.6 F (+1.7 °C / 3.1 F).
Temperature development upper side (load)
Temperature development upper side (load)
Temperature development underside (load)
Temperature development underside (load)
Temperature development upper side (idle)
Temperature development upper side (idle)
Temperature development underside (idle)
Temperature development underside (idle)

Speakers

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2032.232.232.22540.734.440.73132.432.832.44030.631.530.6503736.5376328.427.828.4802626.42610027.224.927.212534.725.234.716027.425.427.42002623.82625027.52227.531534.721.634.740048.920.648.950049.719.849.763056.719.456.780061.318.561.3100069.618.169.6125073.217.873.2160065.417.765.420006317.863250069.317.769.3315065.817.865.8400065.21865.2500069.51869.5630069.118.269.1800064.318.264.31000061.418.361.41250059.818.159.81600057.618.157.6SPL79.430.579.4N41.21.541.2median 61.3median 18.2median 61.3Delta11.8211.835.335.132.931.831.83236.535.132.428.93328.936.328.848.32761.52752.924.860.92462.822.763.32269.521.267.82174.82075.919.472.718.97117.770.117.86917.671.817.668.117.671.417.673.717.670.417.571.617.671.617.669.617.459.717.583.630.662.51.5median 69.6median 17.84.62.4hearing rangehide median Pink NoiseHP ProBook 655 G2 T9X09ETApple MacBook 12 (Early 2016) 1.1 GHz
HP ProBook 655 G2 T9X09ET audio analysis

(±) | speaker loudness is average but good (75 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 31.7% lower than median
(±) | linearity of bass is average (10.1% delta to prev. frequency)
Mids 400 - 2000 Hz
(±) | reduced mids - on average 6.8% lower than median
(±) | linearity of mids is average (14.1% delta to prev. frequency)
Highs 2 - 16 kHz
(±) | higher highs - on average 5.1% higher than median
(±) | linearity of highs is average (7.6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (28.8% difference to median)
Compared to same class
» 89% of all tested devices in this class were better, 2% similar, 9% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 85% of all tested devices were better, 4% similar, 11% worse
» The best had a delta of 3%, average was 21%, worst was 53%

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 (9.3% difference to median)
Compared to same class
» 1% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 8%, average was 20%, worst was 50%
Compared to all devices tested
» 1% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Frequency diagram in comparison (check boxes above can be turned on/off!)

功耗

在低负载下我们测出的最高功耗使用为8.6瓦,十分优良。在压力测试下,其功耗短暂地升到了42.1瓦,然后很快降到了30.5瓦。原因在于GPU和CPU降频了。其官方宣称的电源适配器输出功率为45瓦。

Power Consumption
Off / Standbydarklight 0.26 / 0.5 Watt
Idledarkmidlight 5.8 / 7.5 / 8.6 Watt
Load midlight 31 / 30.5 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy

电池续航

通过我们的WiFi实践测试我们浏览了不同的网页。电源使用计划为“平衡”,未开启省电模式。我们通常会将测试机的显示亮度调整为150 cd/m²,但这对ProBook 655 G2来说不可能。电池模式下其最高亮度仅仅为81 cd/m²。这台ProBook的续航时间为5小时14分钟,对比ProBook 650 G2的成绩(7小时4分钟)来说几乎少了两小时。

Battery Runtime
NBC WiFi Websurfing Battery Test 1.3 (IE 11)
3h 40min
Battery Runtime - WiFi Websurfing 1.3
Dell Latitude 15 E5570
6300U, HD Graphics 520, 62 Wh
632 min ∼24% +187%
Acer TravelMate P658-M-537B
6200U, HD Graphics 520, 55 Wh
512 min ∼19% +133%
HP ProBook 650 G2 V1A44ET
6200U, HD Graphics 520, 48 Wh
424 min ∼16% +93%
HP ProBook 650 G2-T9X61ET
6200U, HD Graphics 520, 48 Wh
408 min ∼15% +85%
Lenovo ThinkPad L560-20F10026GE
6200U, HD Graphics 520, 48 Wh
406 min ∼15% +85%
HP ProBook 655 G2 T9X09ET
Pro A8-8600B, Radeon R6 (Carrizo), 48 Wh
220 min ∼8%

Pros

+ 哑光雾面屏幕
+ M.2硬盘位
+ 可添LTE调解器模块
+ 扩展槽
+ 相对坚固的外壳
+ 键盘优秀

Cons

- 屏幕显示很暗,低对比度,可视角度窄
- 未接入电源适配器是保持PWM
- 仅有一年保修
- 接口定位
- 无第二代USB 3.1接口
- 键盘无背光

Verdict

In review: HP ProBook 655 G2 T9X09ET. Test provided by HP Germany.
In review: HP ProBook 655 G2 T9X09ET. Test provided by HP Germany.

  惠普Probook 655 G2和其姐妹型号Probook 650 G2使用了相同的模具。它们都属于中端15.6英寸的商务笔记本。655 G2采用了AMD的APU,而650 G2使用了Intel的处理器。655 G2内置的处理器并不能发挥全部性能,原因在于惠普将APU的TDP限制在了15瓦,使其与Intel超低功耗ULV架构处理器同级。也正因此,655 G2的CPU的动态超频技术也受到了限制。尽管如此,这台机器的性能对于办公以及上网浏览用途来说也是绰绰有余了。

  Probook 650 G2对于Probook 655 G2来说并不算一个替代品。650 G2的低价也说明了其更低的CPU性能以及明显更低的电池续航。

  这台电脑运行时十分安静也很少会有明显发热。我们的测试机并没有固态硬盘,但是655 G2支持加装固态。现用的2.5英寸硬盘位可以放入任意一个2.5英寸或者M.2接口的固态硬盘。这台机器并没有提供一个可以直接加装固态硬盘和内存的维护底舱。所以加装固态硬盘的时候它的底部需要被整个移除。后面的步骤并没有什么特殊的地方。

  Probook 655 G2的内置键盘给我们留下了一个很好的印象,而且也能满足频繁打字的需求。但是,这块键盘并不支持背光,这和我们所测试过的650 G2一样。对于Probook来说,背光键盘应该成为标配。655 G2的电池续航时间仅仅是平均水平。我们的测试机不搭载LTE/3G网络调解器,但LTE/3G网络调解器可以加装。机器里提供了调解器所使用的空间和天线。

  很难令人接受,但是惠普再一次明显的阉割了650 G2和655 G本来就不怎么样的屏幕。655 G2上现用的屏幕很暗,对比度很低而且可视角度非常的窄。在未接入电源适配器的时候亮度降低到了81cd/m²,这对于室内使用也未免太低

HP ProBook 655 G2 T9X09ET - 11/07/2016 v5.1(old)
Sascha Mölck

Chassis
81 / 98 → 83%
Keyboard
85%
Pointing Device
88%
Connectivity
51 / 80 → 63%
Weight
61 / 20-67 → 87%
Battery
73%
Display
75%
Games Performance
54 / 68 → 79%
Application Performance
59 / 92 → 64%
Temperature
93%
Noise
91%
Audio
59%
Camera
48 / 85 → 56%
Average
71%
81%
Office - Weighted Average

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> Notebookcheck中文版(NBC中国) > 评测 > 惠普 ProBook 655 G2 T9X09ET 笔记本简短评测
Sascha Mölck, 2016-10-29 (Update: 2018-05-15)