Notebookcheck

HP ProBook 455 G2 Notebook Review

Till Schönborn, Tanja Hinum (translated by Liala Stieglitz), 05/10/2015

You get what you pay for. HP demands less than 400 Euros (~$446) for the basic configuration of its ProBook 455 G2, which recommends it for entering the world of semi-professional office laptops. Unfortunately, the weak hardware slows down the user far too often.

For the original German review, see here.

In addition to the premium-range models of the EliteBook lineup, HP has had the so-called ProBook series in its portfolio for many years. It promises a comparatively affordable entry into the world of business laptops. It almost seems inevitable that compromises have to be made in casing, connectivity and performance - but what qualities does a basic configuration for below 400 Euros (~$446), such as the ProBook 455 G2, really have?

Our review sample is based on an AMD A6 Pro 7050B and has been furnished with 4 GB of RAM and a 500 GB hard drive. Not much more can be expected considering the price. The same is true for the 15.6-inch, AR-coated WXGA screen that is powered by the integrated Radeon R4 GPU. The preloaded Windows 7 Professional with a free upgrade option to Windows 8.1 Pro is a nice surprise. Many contenders are only shipped with the less expensive non-Pro version.

Since both the casing and input devices only differ insignificantly from the former ProBook 455 G1 and the 450 G2 Intel version, we will only briefly discuss these points and primarily focus on the AMD APU that is in our tests for the first time.

good (76%) HP ProBook 455 G2 AMD A6 Pro-7050BAMD Radeon R4 (Kaveri) Office - 04/30/2015 - v4
Test device courtesy of HP Deutschland
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HP ProBook 455 G2 (ProBook 455 Series)
Graphics adapter
AMD Radeon R4 (Kaveri), Core: 200 - 533 MHz, Memory: 800 MHz, single-channel memory, 9.14.10.01017
Memory
4096 MB 
, 1x 4 GB DDR3L-1600, single-channel, 1 of 2 slots filled
Display
15.6 inch 16:9, 1366 x 768 pixel, AUO B156XW04, TN screen, LED backlight, glossy: no
Storage
Hitachi Travelstar Z5K500 HTS545050A7E680, 500 GB 
, 5400 rpm, 418 GB free
Soundcard
AMD Kaveri - High Definition Audio Controller
Connections
2 USB 2.0, 2 USB 3.0 / 3.1 Gen1, 1 VGA, 1 HDMI, 1 Kensington Lock, Audio Connections: 3.5 mm headset jack, Card Reader: SD, 1 Fingerprint Reader
Networking
Realtek RTL8168/8111 Gigabit-LAN (10/100/1000MBit), Realtek RTL8723BE Wireless LAN 802.11n PCI-E NIC (b/g/n), Bluetooth 4.0
Optical drive
hp DVDRW SU208GB
Size
height x width x depth (in mm): 25.5 x 375 x 234 ( = 1 x 14.76 x 9.21 in)
Battery
40 Wh Lithium-Ion, 4 cells
Operating System
Microsoft Windows 7 Professional 64 Bit
Camera
Webcam: 1.0 megapixel
Additional features
Speakers: stereo, Keyboard: chiclet, Keyboard Light: no, 45 watt power supply, driver DVD, Windows 8.1 Pro DVD, Cyberlink Power2Go, Cyberlink PowerDVD 12, Cyberlink YouCam, HP Client Security Manager, HP Drive Encryption, HP File Sanitizer, Microsoft Office 365 (trial), Microsoft Security Essentials, PDF Complete Corporate Edition, 12 Months Warranty
Weight
2.23 kg ( = 78.66 oz / 4.92 pounds), Power Supply: 230 g ( = 8.11 oz / 0.51 pounds)
Price
400 Euro
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Comparison with the Precursor

Apart from a few minor modifications in design, HP has taken the tried ProBook 450/455 chassis almost without alteration into 2015. Even if its quality cannot compete with that of a considerably pricier EliteBook, the casing convinces with a decent build and relatively high-quality plastic. A massive plate of brushed aluminum is even installed around the keyboard. It not only boosts the laptop's looks but also its stability and stiffness. Our review sample reaps in more plus points for its extensive connectivity that is comprised of a total of four USB ports (2x USB 3.0, 2x USB 2.0), VGA and HDMI, and a now rarely found DVD drive.

The usual, comprehensive information regarding casing, connectivity, communication and input devices can be found in the review of the identically built ProBook 450 G2 Intel model.

Display

The 455 G2 is only offered with a 15.6-inch anti-glare screen that has a native resolution of 1366x768 pixels (WXGA). That is definitely too little for productive work with multi-sided documents or even multitasking. However, it reflects the common standard of this price category. Besides the limited desktop, many users will likely also dislike the resulting low pixel density of just 100 ppi, which leads to a very coarse representation of icons and fonts.

At least the screen's brightness of 222 cd/m² is marginally higher than in most low-cost rivals, and generally no restrictions should be faced indoors. The ProBook, unfortunately, does not feature an ambient light sensor for controlling the LED backlight automatically. We can describe the illumination as very homogeneous subjectively; minor clouding is only visible at the lower edge in dark content.

209
cd/m²
220
cd/m²
216
cd/m²
221
cd/m²
245
cd/m²
219
cd/m²
230
cd/m²
210
cd/m²
227
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 245 cd/m² Average: 221.9 cd/m²
Brightness Distribution: 85 %
Center on Battery: 245 cd/m²
Contrast: 430:1 (Black: 0.57 cd/m²)
ΔE Color 11.47 | 0.6-29.43 Ø6.1
ΔE Greyscale 11.58 | 0.64-98 Ø6.3
35.4% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.15
HP ProBook 455 G2
Radeon R4 (Kaveri), A6 Pro-7050B, Hitachi Travelstar Z5K500 HTS545050A7E680
Lenovo ThinkPad Edge E550-20DGS00300
HD Graphics 5500, 5005U, Hitachi Travelstar Z7K500 HTS725050A7E630
Lenovo Thinkpad E555
Radeon R5 (Kaveri), A8-7100, Seagate ST500LM021-1KJ15
Acer TravelMate P256-M-39NG
HD Graphics 4400, 4005U, Seagate Momentus Thin ST500LT012-1DG142
Screen
-3%
-6%
-0%
Brightness middle
245
228
-7%
203
-17%
232
-5%
Brightness
222
210
-5%
209
-6%
230
4%
Brightness Distribution
85
89
5%
85
0%
82
-4%
Black Level *
0.57
0.688
-21%
0.65
-14%
0.66
-16%
Contrast
430
331
-23%
312
-27%
352
-18%
Colorchecker DeltaE2000 *
11.47
10.04
12%
11.01
4%
12
-5%
Greyscale DeltaE2000 *
11.58
10.65
8%
11.57
-0%
12.65
-9%
Gamma
2.15 102%
2.53 87%
2.09 105%
3.09 71%
CCT
13213 49%
12807 51%
12849 51%
14904 44%
Color Space (Percent of AdobeRGB 1998)
35.4
38.8
10%
39
10%
53
50%

* ... smaller is better

AdobeRGB coverage (35.4%)
AdobeRGB coverage (35.4%)
sRGB coverage (55.5%)
sRGB coverage (55.5%)

The TN screen from AUO dubbed B156XW04 is the same model that is installed in the ProBook 450 G2. As expected, the black level (0.57 cd/m²) and contrast ratio (430:1) are only middling, which leads to a relatively pale image impression. Although that is not particularly annoying in routine office applications, movies or games would be far more enjoyable on a (pricier) IPS screen.

The screen exhibits an intensive bluish cast ex-factory. The manufacturer set a very cold white point of 7700 K rather than the usual 6500 K, under which the entire color and grayscale level reproduction suffers (DeltaE both over 11). The reproduction improved considerably after our calibration, and the DeltaE shift dropped to approximately 3.8 (ColorChecker) and 0.8 (grayscale). Photographers and VDU workers will have to use an external monitor in view of the very limited color space anyway.

ColorChecker (pre-calibration)
ColorChecker (pre-calibration)
Saturation Sweeps (pre-calibration)
Saturation Sweeps (pre-calibration)
Grayscale (pre-calibration)
Grayscale (pre-calibration)
ColorChecker (post-calibration)
ColorChecker (post-calibration)
Saturation Sweeps (post-calibration)
Saturation Sweeps (post-calibration)
Grayscale (post-calibration)
Grayscale (post-calibration)

The screen's AR-coating allows using the laptop outdoors without problems. Distracting reflections do not impair legibility. However, an even higher maximum brightness would be very welcome - the user should avoid direct sunlight in any event.

Outdoors (overcast)

Like multiple other low-cost TN screens, the present screen is very sensitive vertically. The slightest movement of the head is enough to provoke a strong brightening or darkening of the image. It tolerates lateral deviations up to an angle of approximately 20 degrees; beyond that the colors also distort increasingly and the contrast drops rapidly.

Viewing angles: HP ProBook 455 G2
Viewing angles: HP ProBook 455 G2

Performance

Considering Intel's dominance in virtually all laptop categories, we are pleased to finally again hold an AMD-based device in our hands with the ProBook 455 G2. The present review sample only sports the low-end A6 Pro-7050B APU (2 cores; 2.2 to 3.0 GHz; 17 watts) for price reasons. However, the ProBook is also available with a stronger A8-7100 (4 cores; 1.8 to 3.0 GHz; 19 watts). Both models come from AMD's (still) current Kaveri generation and are built in the 28 nanometer technology.

The processor-integrated Radeon R4 takes care of all 2D and 3D calculations for the lack of a dedicated graphics card. Only 192 units of the physical 512 GCN Shaders in the Kaveri chip are active in this case. They clock at up to 533 MHz. Like all current AMD GPUs, the Radeon R4 supports DirectX 11.2 in addition to the manufacturer's Mantle API.

HP only installs 4 GB DDR3L-1600 in one of the two memory banks, and thus the memory controller operates in the slower single-channel mode. However, the consequently resulting performance losses should stay within limits owing to the relatively weak graphics card. That also facilitates future upgrading. The storage device is a conventional hard drive with a capacity of 500 GB.

System information: HP ProBook 455 G2

Processor

Roughly 2.4 GHz in single-threading,...
Roughly 2.4 GHz in single-threading,...
...base clock of only 2.2 GHz in multi-threading.
...base clock of only 2.2 GHz in multi-threading.

Since the quad-core models of the Kaveri line barely reach the performance level of an Intel Core i3, new performance records cannot really be expected from the A6 Pro-7050B that has been cut down to only two cores (one module). It could be assumed that the chip's Turbo headroom will be utilized quite well since the TDP specified with 17 watts will rarely be limiting.

Unfortunately, it looks a bit different in reality. The maximum possible 3.0 GHz was only achieved for a few seconds before the clock dropped to approximately 2.4 GHz even in the single-thread benchmarks. The APU started at 2.7 GHz in a multi-thread task only to settle permanently to approximately 2.2 GHz. That in conjunction with the comparatively low per-MHz performance and poor core scaling (not all units of the dual-core really exist twice due to the module architecture of the Kaveris) result in a very mediocre performance impression. The A6 Pro is located somewhere between an A6-6310 (single-threading) and Celeron N2910 (multi-threading). The performance of a Core i3 based on Haswell or Broadwell is approximately 1.5 to 2 times as high.

We did not ascertain differences between AC mode and battery mode in the test.

Cinebench R11.5
CPU Single 64Bit (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
0.56 Points ∼58%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
0.96 Points ∼100% +71%
Lenovo Thinkpad E555
AMD A8-7100
0.56 Points ∼58% 0%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
0.76 Points ∼79% +36%
CPU Multi 64Bit (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
0.99 Points ∼44%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
2.27 Points ∼100% +129%
Lenovo Thinkpad E555
AMD A8-7100
1.55 Points ∼68% +57%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
1.85 Points ∼81% +87%
Cinebench R15
CPU Single 64Bit (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
49 Points ∼60%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
82 Points ∼100% +67%
Lenovo Thinkpad E555
AMD A8-7100
48 Points ∼59% -2%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
68 Points ∼83% +39%
CPU Multi 64Bit (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
82 Points ∼39%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
208 Points ∼100% +154%
Lenovo Thinkpad E555
AMD A8-7100
140 Points ∼67% +71%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
172 Points ∼83% +110%
X264 HD Benchmark 4.0
Pass 2 (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
6.29 fps ∼49%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
12.96 fps ∼100% +106%
Lenovo Thinkpad E555
AMD A8-7100
11.1 fps ∼86% +76%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
10.88 fps ∼84% +73%
Pass 1 (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
32.67 fps ∼47%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
69.7 fps ∼100% +113%
Lenovo Thinkpad E555
AMD A8-7100
56.2 fps ∼81% +72%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
57.27 fps ∼82% +75%
Geekbench 3
32 Bit Multi-Core Score (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
1902 Points ∼47%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
4016 Points ∼100% +111%
Lenovo Thinkpad E555
AMD A8-7100
3355 Points ∼84% +76%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
3441 Points ∼86% +81%
32 Bit Single-Core Score (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
1255 Points ∼66%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
1912 Points ∼100% +52%
Lenovo Thinkpad E555
AMD A8-7100
1459 Points ∼76% +16%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
1673 Points ∼88% +33%
Mozilla Kraken 1.1 - Total Score (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B
5810 ms * ∼100%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U
3339.4 ms * ∼57% +43%
Lenovo Thinkpad E555
AMD A8-7100
4949.9 ms * ∼85% +15%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U
3960.4 ms * ∼68% +32%

* ... smaller is better

Cinebench R10 Shading 32Bit
3019
Cinebench R10 Rendering Multiple CPUs 32Bit
3075
Cinebench R10 Rendering Single 32Bit
1850
Cinebench R10 Shading 64Bit
3153 Points
Cinebench R10 Rendering Multiple CPUs 64Bit
4073 Points
Cinebench R10 Rendering Single CPUs 64Bit
2398 Points
Cinebench R11.5 OpenGL 64Bit
12.3 fps
Cinebench R11.5 CPU Multi 64Bit
0.99 Points
Cinebench R11.5 CPU Single 64Bit
0.56 Points
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 OpenGL 64Bit
12.33 fps
Cinebench R15 CPU Multi 64Bit
82 Points
Cinebench R15 CPU Single 64Bit
49 Points
Help

Storage Device

HD Tune benchmark
HD Tune benchmark

The installed storage device is a rather unspectacular 2.5-inch hard drive (7 millimeters height) from HGST - formerly Hitachi - and which belongs to the Travelstar Z5K500 lineup. The access time (18.8 milliseconds) and sequential transfer rate (86 MB/s) correspond to the level of comparable drives that spin at 5400 rpm. Retrofitting an SSD would hold out the prospect of a drastic performance boost. Even less tech-savvy users could replace it, owing to the maintenance cover on the underside.

Hitachi Travelstar Z5K500 HTS545050A7E680
Transfer Rate Minimum: 53.8 MB/s
Transfer Rate Maximum: 111.3 MB/s
Transfer Rate Average: 85.8 MB/s
Access Time: 18.8 ms
Burst Rate: 274.7 MB/s
CPU Usage: 1 %

System Performance

High CPU load while loading intricate websites
High CPU load while loading intricate websites

Before reporting about our real-life experiences with the ProBook 455 G2, we will look at the results of the synthetic PCMark series. Interestingly, our review sample scored considerably worse in the older PCMark 7 than in the latest PCMark 8 and even defeats the Core i3-based TravelMate P256-M. That is presumably because the newer benchmark version is very much geared to OpenCL utilization - and, as known, the OpenCL performance is one of the absolute specialties of modern AMD APUs. However, we do not believe that this focus is really practically relevant.

We primarily noticed the processor's limited performance reserves unfavorably in installations, complex websites and larger PDF documents. Minor lags and waiting times were routine, particularly while performing other operations simultaneously. The 455 G2 will likely cope with these tasks much better with the optionally available A8-7100, or the buyer could opt for the Intel-based sister model from the outset.

PCMark 7 - Score (sort by value)
HP ProBook 455 G2
Radeon R4 (Kaveri), A6 Pro-7050B, Hitachi Travelstar Z5K500 HTS545050A7E680
1488 Points ∼53%
Lenovo ThinkPad Edge E550-20DGS00300
HD Graphics 5500, 5005U, Hitachi Travelstar Z7K500 HTS725050A7E630
2784 Points ∼100% +87%
Lenovo Thinkpad E555
Radeon R5 (Kaveri), A8-7100, Seagate ST500LM021-1KJ15
2150 Points ∼77% +44%
Acer TravelMate P256-M-39NG
HD Graphics 4400, 4005U, Seagate Momentus Thin ST500LT012-1DG142
2098 Points ∼75% +41%
PCMark 8
Work Score Accelerated v2 (sort by value)
HP ProBook 455 G2
Radeon R4 (Kaveri), A6 Pro-7050B, Hitachi Travelstar Z5K500 HTS545050A7E680
3030 Points ∼91%
Lenovo ThinkPad Edge E550-20DGS00300
HD Graphics 5500, 5005U, Hitachi Travelstar Z7K500 HTS725050A7E630
3321 Points ∼100% +10%
Acer TravelMate P256-M-39NG
HD Graphics 4400, 4005U, Seagate Momentus Thin ST500LT012-1DG142
2624 Points ∼79% -13%
Creative Score Accelerated v2 (sort by value)
HP ProBook 455 G2
Radeon R4 (Kaveri), A6 Pro-7050B, Hitachi Travelstar Z5K500 HTS545050A7E680
1805 Points ∼63%
Lenovo ThinkPad Edge E550-20DGS00300
HD Graphics 5500, 5005U, Hitachi Travelstar Z7K500 HTS725050A7E630
2870 Points ∼100% +59%
Acer TravelMate P256-M-39NG
HD Graphics 4400, 4005U, Seagate Momentus Thin ST500LT012-1DG142
1838 Points ∼64% +2%
Home Score Accelerated v2 (sort by value)
HP ProBook 455 G2
Radeon R4 (Kaveri), A6 Pro-7050B, Hitachi Travelstar Z5K500 HTS545050A7E680
2026 Points ∼80%
Lenovo ThinkPad Edge E550-20DGS00300
HD Graphics 5500, 5005U, Hitachi Travelstar Z7K500 HTS725050A7E630
2544 Points ∼100% +26%
Acer TravelMate P256-M-39NG
HD Graphics 4400, 4005U, Seagate Momentus Thin ST500LT012-1DG142
1869 Points ∼73% -8%
PCMark 7 Score
1488 points
PCMark 8 Home Score Accelerated v2
2026 points
PCMark 8 Creative Score Accelerated v2
1805 points
PCMark 8 Work Score Accelerated v2
3030 points
Help

Graphics Card

No smooth 4K playback (H.264)
No smooth 4K playback (H.264)

Slimmed to just 192 Shader units, the Radeon R4 Kaveri GPU loses a large part of its potential performance and is defeated by both the HD Graphics 5500 (Broadwell) and HD 4400 (Haswell). Consequently, the graphics unit is only conditionally suitable for more demanding 3D applications, such as from the CAD field.

The ProBook copes better with multimedia tasks, such as rendering HD videos. 1080p materials in the H.264 codec (Big Buck Bunny) are rendered smoothly and with low CPU load, just like an H.265 trailer in 720p resolution (Tears of Steel). However, we did not manage a lag-free playback of 4K videos with a high bit rate regardless of the underlying codec.

3DMark 11 - 1280x720 Performance (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
658 Points ∼68%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
909 Points ∼94% +38%
Lenovo Thinkpad E555
AMD A8-7100, AMD Radeon R5 (Kaveri)
964 Points ∼100% +47%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U, Intel HD Graphics 4400
802 Points ∼83% +22%
3DMark
1920x1080 Fire Strike Score (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
375 Points ∼69%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
540 Points ∼100% +44%
Lenovo Thinkpad E555
AMD A8-7100, AMD Radeon R5 (Kaveri)
527 Points ∼98% +41%
1280x720 Cloud Gate Standard Score (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
1976 Points ∼51%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
3886 Points ∼100% +97%
Lenovo Thinkpad E555
AMD A8-7100, AMD Radeon R5 (Kaveri)
2594 Points ∼67% +31%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U, Intel HD Graphics 4400
3366 Points ∼87% +70%
1280x720 Ice Storm Standard Score (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
21081 Points ∼56%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
37420 Points ∼100% +78%
Lenovo Thinkpad E555
AMD A8-7100, AMD Radeon R5 (Kaveri)
24924 Points ∼67% +18%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U, Intel HD Graphics 4400
29560 Points ∼79% +40%
3DMark 06 Standard
3179 points
3DMark Vantage P Result
1958 points
3DMark 11 Performance
658 points
3DMark Ice Storm Standard Score
21081 points
3DMark Cloud Gate Standard Score
1976 points
3DMark Fire Strike Score
375 points
Help

Gaming Performance

Games released in the past 3 years overburden the A6 Pro-7050B already when just using minimum graphics settings - of the titles with low graphics requirement that we tested here, only The Sims 4 and TrackMania were rendered in acceptable frame rates. The actual problem is, however, not as much the available GPU power but in fact the processor's lack of performance as a comparison with multiple (w/ similarly strong GPU) Beema APUs proves. We also observed strange "rubber band effects" that were caused by extremely irregular frame rates - the suspicion arises that modern games are no longer satisfied with only one CPU module including CMT extensions.

Counter-Strike: GO - 1024x768 (Very) Low (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
27.9 fps ∼46%
Asus F551MA-SX063H
Intel Pentium N3520, Intel HD Graphics (Bay Trail)
46.6 fps ∼76% +67%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
61 fps ∼100% +119%
Lenovo IdeaPad G50-45
AMD A6-6310, AMD Radeon R4 (Beema)
48.3 fps ∼79% +73%
Diablo III - 1024x768 Low / off (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
29.1 fps ∼62%
Asus Transformer Book T200TA
Intel Atom Z3775, Intel HD Graphics (Bay Trail)
10.7 fps ∼23% -63%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
47.1 fps ∼100% +62%
Lenovo IdeaPad G50-45
AMD A6-6310, AMD Radeon R4 (Beema)
39.9 fps ∼85% +37%
Tomb Raider - 1024x768 Low Preset (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
24 fps ∼60%
Asus F551MA-SX063H
Intel Pentium N3520, Intel HD Graphics (Bay Trail)
15.5 fps ∼39% -35%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
40.2 fps ∼100% +68%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U, Intel HD Graphics 4400
38.2 fps ∼95% +59%
Lenovo IdeaPad G50-45
AMD A6-6310, AMD Radeon R4 (Beema)
31.7 fps ∼79% +32%
HP 15-g005ng
AMD A8-6410, AMD Radeon R5 (Beema/Carrizo-L)
34 fps ∼85% +42%
BioShock Infinite - 1280x720 Very Low Preset (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
17.6 fps ∼58%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U, Intel HD Graphics 4400
28.96 fps ∼96% +65%
Lenovo IdeaPad G50-45
AMD A6-6310, AMD Radeon R4 (Beema)
30.2 fps ∼100% +72%
Dota 2 - 1024x768 Low / Off, Render Quality: 40 % (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
15.7 fps ∼35%
Asus Transformer Book T200TA PL
Intel Atom Z3775, Intel HD Graphics (Bay Trail)
31.9 fps ∼71% +103%
Lenovo ThinkPad Edge E550-20DGS00300
Intel Core i3-5005U, Intel HD Graphics 5500
44.8 fps ∼100% +185%
Lenovo IdeaPad G50-45
AMD A6-6310, AMD Radeon R4 (Beema)
21.8 fps ∼49% +39%
Fifa 14 - 1024x768 Low Preset (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
28.5 fps ∼30%
Lenovo IdeaPad G50-45
AMD A6-6310, AMD Radeon R4 (Beema)
95.2 fps ∼100% +234%
Fifa 15 - 1280x720 Low Preset (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
14.4 fps ∼45%
Acer TravelMate P256-M-39NG
Intel Core i3-4005U, Intel HD Graphics 4400
32 fps ∼100% +122%
Sims 4 - 1024x768 Low Preset (sort by value)
HP ProBook 455 G2
AMD A6 Pro-7050B, AMD Radeon R4 (Kaveri)
62.6 fps ∼100%
Asus Transformer Book T200TA
Intel Atom Z3775, Intel HD Graphics (Bay Trail)
53.7 fps ∼86% -14%
HP 15-g005ng
AMD A8-6410, AMD Radeon R5 (Beema/Carrizo-L)
57.9 fps ∼92% -8%
low med. high ultra
Trackmania Nations Forever (2008) 92.120.36.6fps
Diablo III (2012) 29.119.615.810.8fps
Counter-Strike: GO (2012) 27.919.816.713.2fps
Tomb Raider (2013) 2412.78.83.7fps
BioShock Infinite (2013) 17.610.78.93.3fps
Dota 2 (2013) 15.714.76.8fps
Fifa 14 (2013) 28.522.816.814.6fps
Sims 4 (2014) 62.613.86.9fps
Fifa 15 (2014) 14.44.5fps

Emissions

System Noise

Unlike the ProBook 450 G2 (and most other laptops based on ULV hardware), the fan in the 455 G2 spins permanently even in idle mode. That and the hard drive's quiet hum result in a noise level of just over 30 dB(A). Although that is not really loud, it is quite audible in quiet surroundings.

The cooling system is even more prevalent with 33.8 to 35.4 dB(A) during load. We would not call the device disturbingly loud yet, especially since the fan operates relatively evenly, and it is not excessively high-pitched. When compared with direct rivals, such as the ThinkPad E550, the ProBook scores only marginally worse.

Noise Level

Idle
30.1 / 30.1 / 31.2 dB(A)
HDD
30.3 dB(A)
DVD
36.7 / dB(A)
Load
33.8 / 35.4 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Voltcraft SL-451 (15 cm distance)

Temperature

Stress test
Stress test
Prime95
Prime95

We did not ascertain an excessive temperature increase on the casing's surfaces in either idle mode or when the hardware was fully loaded. The temperatures never surpassed just over 40 °C even in the vent's area, which is on the device's rear left. The ProBook at most got lukewarm during basic operations, such as Internet browsing, which allows using it comfortably on the lap.

The processor's core temperature settled to an uncritical 55 °C after one hour in the stress test (Prime95 and FurMark), and thus overheating even on hot summer days will not be an issue. However, the CPU throttled to just 1.1 GHz and the GPU throttled 300 MHz directly after initiation. The chip would probably surpass its TDP or a predefined power dissipation limit otherwise. Current Intel models also exhibit the same behavior.

 28 °C
82 F
28.7 °C
84 F
24.9 °C
77 F
 
 29 °C
84 F
29.5 °C
85 F
25.6 °C
78 F
 
 27.4 °C
81 F
29.9 °C
86 F
26.3 °C
79 F
 
Maximum: 29.9 °C = 86 F
Average: 27.7 °C = 82 F
24.2 °C
76 F
26.7 °C
80 F
27.9 °C
82 F
25 °C
77 F
31 °C
88 F
30.1 °C
86 F
26.1 °C
79 F
30.8 °C
87 F
27.5 °C
82 F
Maximum: 31 °C = 88 F
Average: 27.7 °C = 82 F
Power Supply (max.)  38.1 °C = 101 F | Room Temperature 21.1 °C = 70 F | Fluke 62 Max
(±) The average temperature for the upper side under maximal load is 32.1 °C / 90 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 39.4 °C / 103 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 36.9 °C / 98 F, compared to the average of 36.4 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 27.7 °C / 82 F, compared to the device average of 29.4 °C / 85 F.
(+) The palmrests and touchpad are reaching skin temperature as a maximum (34.6 °C / 94.3 F) and are therefore not hot.
(-) The average temperature of the palmrest area of similar devices was 28.2 °C / 82.8 F (-6.4 °C / -11.5 F).

Energy management

Power Consumption

We would have called the ProBook 455 G2's idle power consumption of 8.0 to 12.6 watts acceptable only a few years ago. However, these rates are no longer contemporary in 2015. Broadwell laptops, such as the ThinkPad Edge E550 (3.3 - 7.0 watts) or ProBook 450 G2 (2.4 - 5.0 watts) are satisfied with roughly half. That also explains why the fan in the 455 G2 spins persistently.

The power consumption climbs to almost 30 watts when both the processor and graphics card are put under high load - seen in total, a similar level as the Intel contenders. However, it is definitely too much when put in relation to the available performance, especially since AMD's own low-cost Beema platform (e.g. A8-6410) shines with a considerably better energy efficiency.

Power Consumption
Off / Standbydarklight 0 / 0.1 Watt
Idledarkmidlight 8 / 10.9 / 12.6 Watt
Load midlight 26.1 / 28.7 Watt
 color bar
Key: min: dark, med: mid, max: light        Extech Power Analyzer 380803

Battery Runtime

A comparatively weak 40 Wh battery has to cover the ascertained energy requirement away from the desk. Particularly long runtimes should thus not be expected. In fact, the ProBook is usually depleted after 3 to 4 hours when playing a video with a brightness set to approx. 150 cd/m² or browsing on the Internet via Wi-Fi. Some extra minutes might be achieved by installing a frugal SSD, but the 455 G2 will unlikely match the endurance of its sister model anyway.

Reader's test
Reader's test
Wi-Fi test
Wi-Fi test
H.264 test
H.264 test
Classic test
Classic test
Charging
Charging
HP ProBook 455 G2
40 Wh
Lenovo ThinkPad Edge E550-20DGS00300
48 Wh
Lenovo Thinkpad E555
48 Wh
Acer TravelMate P256-M-39NG
52 Wh
HP ProBook 450 G2 L3Q27EA
40 Wh
Battery Runtime
70%
9%
87%
Reader / Idle
306
748
144%
404
32%
721
136%
H.264
175
328
87%
193
10%
WiFi v1.3
244
310
27%
Load
106
128
21%
91
-14%
145
37%
WiFi
395
238
368
456
Battery Runtime
Idle (without WLAN, min brightness)
5h 06min
NBC WiFi Websurfing Battery Test 1.3
4h 04min
Big Buck Bunny H.264 1080p
2h 55min
Load (maximum brightness)
1h 46min

Pros

+ Decent build
+ Good input devices
+ Matte screen surface
+ Low temperature development
+ Low price

Cons

- Weak application and 3D performance
- Fan spins permanently
- Below average battery life
- 12 months warranty only

Verdict

HP ProBook 455 G2, courtesy of HP Germany.
HP ProBook 455 G2, courtesy of HP Germany.

HP's ProBook 455 G2 sooner leaves a mixed overall impression after our test. The laptop with a price of below 400 Euros (~$446) appeals with decent connectivity, office-suitable input devices and an above average casing quality. Of course, a swift SSD or a high-resolution IPS screen is not found for this price, and thus we will overlook these points.

In our opinion, a bigger drawback is the performance. Even if high-end hardware is not needed for Word, Excel & co., the user will expect a certain amount of performance reserves from a modern laptop, which the A6 Pro-7050B simply does not have. An intricate website is already enough to push the chip to its limits - it would have been better had HP installed a presumably equally priced quad-core from the Beema series here. Models, such as the A6-5310 not only calculate faster but also consume less power and would additionally increase the 455 G2's battery life.

Thus our verdict is:

Buyers who are interested in the ProBook 455 G2 despite the listed restrictions should at least take a configuration with the stronger A8-7100.

The virtually identically built ProBook 450 G2 is also an interesting alternative, just like the competing models from Lenovo and Acer.

HP ProBook 455 G2 - 04/30/2015 v4(old)
Till Schönborn

Chassis
83 / 98 → 85%
Keyboard
82%
Pointing Device
84%
Connectivity
68 / 80 → 85%
Weight
62 / 20-67 → 89%
Battery
81%
Display
76%
Games Performance
58 / 68 → 85%
Application Performance
50 / 92 → 54%
Temperature
91%
Noise
91%
Audio
59%
Camera
47 / 85 → 55%
Add Points
-3%
Average
66%
76%
Office - Weighted Average

Pricecompare

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> Notebook / Laptop Reviews and News > Reviews > Archive of our own reviews > HP ProBook 455 G2 Notebook Review
Till Schönborn, 2015-05-10 (Update: 2015-05-11)