惠普 ProBook 655 G2 T9X09ET 笔记本简短评测

Name: HP ProBook 655 G2 T9X09ET
Brand: HP

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。

Sascha Mölck, ✓ Stefanie Voigt (translated by Jinze Lu), Published 10/29/2016 🇺🇸 🇩🇪 ...

AMD Business Carrizo Laptop / Notebook Windows

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。

Test device courtesy of notebooksbilliger.de

Download your licensed rating image as PNG / SVG

ProBook 655 G2 (ProBook 655 Series)

Processor

AMD Pro A8-8600B 4 x 1.6 - 3 GHz, Carrizo

Graphics adapter

AMD Radeon R6 (Carrizo), Core: 720 MHz, 单通道, Crimson 16.7.3 (16.300.2311.0)

Memory

4 GB

, DDR3-1600, 单通道, 双内存槽(一槽可用，一槽已占)

Display

15.60 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 (10/100/1000MBit/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 Euro

Links

HP homepage

Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

see all 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。

SD Card Reader
average JPG Copy Test (av. of 3 runs)
Dell Latitude 15 E5570	155 MB/s +327%
Lenovo ThinkPad L560-20F10026GE	85.4 MB/s +135%
Acer TravelMate P658-M-537B	68.1 MB/s +88%
HP ProBook 650 G2-T9X61ET	60.2 MB/s +66%
HP ProBook 650 G2 V1A44ET	57.3 MB/s +58%
HP ProBook 655 G2 T9X09ET	36.3 MB/s
maximum AS SSD Seq Read Test (1GB)
HP ProBook 650 G2-T9X61ET	88.2 MB/s
Lenovo ThinkPad L560-20F10026GE	72.3 MB/s

Networking
iperf Server (receive) TCP 1 m
HP ProBook 650 G2 V1A44ET Intel Dual Band Wireless-AC 8260 (jseb)	234 MBit/s +81%
HP ProBook 655 G2 T9X09ET Broadcom BCM43228 (jseb)	129 MBit/s
Dell Latitude 15 E5570 Intel Dual Band Wireless-AC 8260	77.4 MBit/s -40%
iperf Client (transmit) TCP 1 m
HP ProBook 650 G2 V1A44ET Intel Dual Band Wireless-AC 8260 (jseb)	79 MBit/s +58%
Dell Latitude 15 E5570 Intel Dual Band Wireless-AC 8260	58 MBit/s +16%
HP ProBook 655 G2 T9X09ET Broadcom BCM43228 (jseb)	50 MBit/s

显示

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 tested with X-Rite i1Pro 2

Maximum: 248 cd/m² (Nits) 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 | 0.5-29.43 Ø4.91
ΔE Greyscale 11.48 | 0.5-98 Ø5.2
67% sRGB (Argyll 1.6.3 3D)
42% AdobeRGB 1998 (Argyll 1.6.3 3D)
45.97% AdobeRGB 1998 (Argyll 2.2.0 3D)
66.9% sRGB (Argyll 2.2.0 3D)
44.49% Display P3 (Argyll 2.2.0 3D)
Gamma: 2.38

Download ICC File (X-Rite i1Pro 2)

	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
Display		17%	-7%	-9%	-12%	38%
Display P3 Coverage	44.49	52.1 17%	41.59 -7%	40.48 -9%	39 -12%	66.6 50%
sRGB Coverage	66.9	78.3 17%	62.3 -7%	60.9 -9%	58.3 -13%	85.7 28%
AdobeRGB 1998 Coverage	45.97	53.7 17%	43 -6%	41.82 -9%	40.33 -12%	62.8 37%
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 dE 2000 *	8.7	11.89 -37%	8.8 -1%	10.02 -15%	8.49 2%	4.51 48%
Colorchecker dE 2000 max. *	14.96	20.81 -39%	15.98 -7%	15.93 -6%	17.99 -20%	10.19 32%
Greyscale dE 2000 *	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)		8% / 5%	-4% / -3%	-4% / -5%	4% / 9%	26% / 27%

* ... smaller is better

Screen Flickering / PWM (Pulse-Width Modulation)

ℹ

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 (worst case, e.g., 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: 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.

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。

Display Response Times

ℹ

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
29 ms ... rise ↗ and fall ↘ combined	↘ 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 0.1 (minimum) to 240 (maximum) ms. » 75 % 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
44 ms ... rise ↗ and fall ↘ combined	↗ 21 ms rise
44 ms ... rise ↗ and fall ↘ combined	↘ 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 0.165 (minimum) to 636 (maximum) ms. » 71 % of all devices are better. This means that the measured response time is worse than the average of all tested devices (32.8 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。

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

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

... in comparison

Cinebench R15 | Geekbench 3 | JetStream 1.1

Cinebench R15
CPU Single 64Bit
Dell Latitude 15 E5570 Intel Core i5-6300U	124 Points +80%
Lenovo ThinkPad L560-20F10026GE Intel Core i5-6200U	116 Points +68%
HP ProBook 650 G2 V1A44ET Intel Core i5-6200U	116 Points +68%
HP ProBook 650 G2-T9X61ET Intel Core i5-6200U	110 Points +59%
Lenovo ThinkPad E560 20EV000MGE Intel Core i3-6100U	98 Points +42%
Acer TravelMate P658-M-537B Intel Core i5-6200U	78 Points +13%
HP EliteBook 745 G3 AMD Pro A12-8800B	72 Points +4%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	70 Points +1%
HP ProBook 655 G2 T9X09ET AMD Pro A8-8600B	69 Points
HP EliteBook 725 G2 AMD A10 Pro-7350B	55 Points -20%
HP ProBook 455 G2 AMD A6 Pro-7050B	49 Points -29%
CPU Multi 64Bit
Dell Latitude 15 E5570 Intel Core i5-6300U	310 Points +71%
HP ProBook 650 G2 V1A44ET Intel Core i5-6200U	291 Points +61%
Lenovo ThinkPad L560-20F10026GE Intel Core i5-6200U	290 Points +60%
HP ProBook 650 G2-T9X61ET Intel Core i5-6200U	288 Points +59%
Lenovo ThinkPad E560 20EV000MGE Intel Core i3-6100U	251 Points +39%
Acer TravelMate P658-M-537B Intel Core i5-6200U	219 Points +21%
HP EliteBook 745 G3 AMD Pro A12-8800B	202 Points +12%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	192 Points +6%
HP ProBook 655 G2 T9X09ET AMD Pro A8-8600B	181 Points
HP EliteBook 725 G2 AMD A10 Pro-7350B	151 Points -17%
HP ProBook 455 G2 AMD A6 Pro-7050B	82 Points -55%

Geekbench 3
32 Bit Single-Core Score
Dell Latitude 15 E5570 Intel Core i5-6300U	2874 Points +55%
HP ProBook 650 G2 V1A44ET Intel Core i5-6200U	2661 Points +43%
Lenovo ThinkPad E560 20EV000MGE Intel Core i3-6100U	2188 Points +18%
HP EliteBook 745 G3 AMD Pro A12-8800B	1969 Points +6%
HP ProBook 655 G2 T9X09ET AMD Pro A8-8600B	1858 Points
HP ProBook 455 G2 AMD A6 Pro-7050B	1255 Points -32%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	950 Points -49%
32 Bit Multi-Core Score
Dell Latitude 15 E5570 Intel Core i5-6300U	6172 Points +48%
HP ProBook 650 G2 V1A44ET Intel Core i5-6200U	5718 Points +37%
Lenovo ThinkPad E560 20EV000MGE Intel Core i3-6100U	4804 Points +15%
HP EliteBook 745 G3 AMD Pro A12-8800B	4691 Points +12%
HP ProBook 655 G2 T9X09ET AMD Pro A8-8600B	4173 Points
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	2728 Points -35%
HP ProBook 455 G2 AMD A6 Pro-7050B	1902 Points -54%

JetStream 1.1 - Total Score
HP ProBook 650 G2-T9X61ET Intel Core i5-6200U	194.1 Points +216%
Dell Latitude 15 E5570 Intel Core i5-6300U	119.8 Points +95%
HP ProBook 650 G2 V1A44ET Intel Core i5-6200U	112.6 Points +83%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	111.2 Points +81%
HP EliteBook 725 G3-P4T48EA AMD Pro A10-8700B	66.4 Points +8%
Lenovo ThinkPad L560-20F10026GE Intel Core i5-6200U	110.1 Points +79%
Lenovo ThinkPad E560 20EV000MGE Intel Core i3-6100U	93.8 Points +53%
HP EliteBook 745 G3 AMD Pro A12-8800B	69.1 Points +13%
HP ProBook 655 G2 T9X09ET AMD Pro A8-8600B	61.4 Points

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

... in comparison

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

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。

HD Tune

CrystalDiskMark 3.0

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		11682%	-1%	11239%	31%	9948%
Read Seq	122.1	475 289%	109.6 -10%	474.7 289%	113.6 -7%	479.1 292%
Write Seq	110.7	435 293%	109.1 -1%	155 40%	111.7 1%	333.1 201%
Read 512	33.53	280.4 736%	30.66 -9%	393.6 1074%	39.65 18%	418 1147%
Write 512	51.3	265.5 418%	45.71 -11%	119.7 133%	55.3 8%	320.5 525%
Read 4k	0.357	32.71 9062%	0.351 -2%	34 9424%	0.488 37%	25.66 7088%
Write 4k	0.641	98.7 15298%	0.798 24%	96.6 14970%	1.022 59%	64.7 9994%
Read 4k QD32	0.778	347.2 44527%	0.656 -16%	383.3 49167%	1.367 76%	226.2 28975%
Write 4k QD32	0.672	154.1 22832%	0.787 17%	100.2 14811%	1.036 54%	211.4 31358%

图形处理器（显卡）

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

... in comparison

3DMark 11 - 1280x720 Performance GPU
HP ProBook 655 G2 T9X09ET AMD Radeon R6 (Carrizo), AMD Pro A8-8600B	1349 Points
Acer TravelMate P658-M-537B Intel HD Graphics 520, Intel Core i5-6200U	1347 Points 0%
HP ProBook 650 G2-T9X61ET Intel HD Graphics 520, Intel Core i5-6200U	1305 Points -3%
Dell Latitude 15 E5570 Intel HD Graphics 520, Intel Core i5-6300U	1296 Points -4%
Lenovo ThinkPad L560-20F10026GE Intel HD Graphics 520, Intel Core i5-6200U	1225 Points -9%
HP ProBook 650 G2 V1A44ET Intel HD Graphics 520, Intel Core i5-6200U	1220 Points -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)	42.2	22.9	18.2

Emissions & Energy Management

系统噪音

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)

	30 dB silent 40 dB(A) audible 50 dB(A) loud
min: , med: , max: Audix TM1, Arta (15 cm distance) environment noise: 31.5 dB(A)

温度

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

Idle


33.5 °C	35.8 °C	31.9 °C
26.6 °C	34.1 °C	31.5 °C
23.9 °C	25 °C	26.4 °C

Maximum: 35.8 °C
Average: 29.9 °C


32.8 °C	36.1 °C	37.6 °C
33.6 °C	32.8 °C	31 °C
28.6 °C	30.3 °C	25.7 °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 29.5 °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 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 37.6 °C / 100 F, compared to the average of 36.8 °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 29.5 °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 27.6 °C / 81.7 F (+1.2 °C / 2.2 F).

Temperature development upper side (load)

Temperature development underside (load)

Temperature development upper side (idle)

Temperature development underside (idle)

Speakers

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
(-) | overall sound is not linear (30.1% difference to median)
Compared to same class
» 90% of all tested devices in this class were better, 3% similar, 6% worse
» The best had a delta of 7%, average was 21%, worst was 53%
Compared to all devices tested
» 87% of all tested devices were better, 3% similar, 10% 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%

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 / Standby	0.26 / 0.5 Watt
Idle	5.8 / 7.5 / 8.6 Watt
Load	31 / 30.5 Watt


Key: min: , med: , max: 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


WiFi Websurfing (IE 11)		3h 40min

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

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.

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%