Notebookcheck

Review HP ProBook 6475b Notebook

Sebastian Jentsch (translated by A Kammel), 04/07/2013

Old-school business laptop. You are looking for a first-class office notebook? If attributes like stable, premium, typing-friendly, matte, cool, silent and money-saving are important to you, then you should keep on reading. But the main surprise of the HP ProBook 6475b lies with its display: Its color fidelity is excellent, despite a low-contrast screen. You shouldn't be too fond of stylish ultrabooks though, because the HP is far from cutting edge when it comes to weight and height.

HP ProBook 6475b (C5A55EA) - a reliable, high-resolution office workhorse for demanding customers?
HP ProBook 6475b (C5A55EA) - a reliable, high-resolution office workhorse for demanding customers?

For the original German review, see here.

The Dell Vostro, Fujitsu's S/E series, Lenovo's ThinkPad L series (L530), Asus' Pro B series and Acer's TravelMate P models as well as HP's ProBook have something in common: All of them are aimed at business customers or private users who look for a workhorse device, people who don't want to spend more than $800-1000, but at the same time don't want to miss out on essential business features such as - at least - a typing-friendly keyboard, a matte display, a multitude of ports and a stable, non-glossy case suitable for everyday use.

With its 14-inch ProBook 6475b (model C5A55EA) equipped with an AMD A6-4400M and a WXGA++ panel, HP complements its series of 13-inch (6360b), 14-inch (6470b), 15-inch (4540s, 4535s) and 17-inch (4740s) notebooks which we have already reviewed. The 6475b is a direct sibling of the Intel-based 6470b with which it shares the same barebone. Like all ProBooks, the 6475b is available in a variety (9) of configurations ranging from $800 to $1000.

We are comparing the 6475b with three of its competitors which are also aimed at business users and demanding consumers, namely the Dell Vostro 3460, Lenovo's ThinkPad L430 and Acer's TravelMate P643. Of course, these are but a small selection of all comparable laptops, as can be seen in the corresponding list below this review - which does not even include cheaper office devices with worse build quality, less ports or unsatisfying input devices. But first let's have a closer look at the 6475b.

Case

How we test - Case

As already mentioned, the 6475b shares a common barebone with its Intel sibling, the 6470b. Number and type of ports are the same, as are their locations. Even the interior of the device looks alike, which makes maintenance of its components a breeze.

However, the 6475b differs considerably from the larger 15-inch 6570b, which sports a completely different chassis with different port locations and an additional numpad which the 6475b does not have. Only color, material and general shape and design remain similar.

HP has chosen to simply reuse the case of the 14-inch predecessor ProBook 6465b (early 2012) - apparently, its stable, high-quality build didn't require any improvements. For a more detailed analysis of all ports, we refer to our reviews of the ProBook 6465b (AMD) and the 6470b (Intel).

Robust metal lids
Robust metal lids
Large maintenance hatch
Large maintenance hatch
Massive (2.4 kg) chassis
Massive (2.4 kg) chassis

Connectivity

How we test - Connectivity

Docking & battery port
Docking & battery port

The ProBook 6475b offers all the numerous connections which more demanding users have come to expect. Since the lid is attached in the conventional way, some ports are even located on the back side of the laptop. Here, one can find both the Ethernet and VGA ports. The power adapter is straight and rigid, thus making it bulkier than necessary (but this is typical for HP). One advantage of the back side ports: The sides show less clutter. We are also quite fond of the concentration of ports near the rear end of the laptop.

Like its predecessor, the right side of the P6475b offers a DisplayPort replacing the older HDMI port. With a DisplayPort cable, external screen resolutions of up to 2560x1600 pixels are possible. Nostalgia sets in when we discover the old ExpressCard54 slot next to it. Both standard interface cards and ExpressCard34 cards fit here, rendering the 15.6-inch laptop expandable.

FireWire (i.LINK) might be of more interest in typical usage scenarios. FireWire used to be a USB 2.0 competitor for external hard drives (also eSATA) and camcorders, offering higher data transfer rates. It was rendered obsolete by USB 3.0 (the ProBook 6475b has two ports), but it might be a nice extra for users with older peripheral devices.

Front side: No ports, stereo speakers (below)
Front side: No ports, stereo speakers (below)
Left side: 2x USB 3.0, FireWire, AC, ExpressCard54, DVD burner
Left side: 2x USB 3.0, FireWire, AC, ExpressCard54, DVD burner
Back side: Ethernet, VGA
Back side: Ethernet, VGA
Right side: Audio In/Out, USB 2.0 / eSATA combination, USB 2.0, DisplayPort, Kensington Lock
Right side: Audio In/Out, USB 2.0 / eSATA combination, USB 2.0, DisplayPort, Kensington Lock

Communication

All P6475b variants offer Wi-Fi draft-n, but some come equipped with pretty much every possible radio device. There is a Broadcom module for Bluetooth 4.0 support, while the Realtek LAN adapter runs with full gigabit speed. Our model does not include an HSDPA modem (3G), although other variants do. In our test device, a free mini-PCI-Express slot with preinstalled antennas, as well as SIM card slot in the battery compartment, heavily imply a 3G version as well. An HP Connection Manager allows for different, location-sensitive Wi-Fi and Bluetooth profiles to be put in place.

Reception is excellent, not only three meters away from the router, but also in the first floor (10 m distance) and outside (15 m). It takes 40 meters for the signal quality to drop down to two bars, which is still satisfying. Even then, the connection remains uninterrupted. These values are astonishing, even more so considering that our router (Fritz!Box 7270) was set at 50% transmission power. Among the last ten devices this reviewer tested, only one - the Fujitsu Lifebook P702 with an Intel Centrino Advanced-N 6205 - was equally good concerning reception.

Security

It is possible to insert an optional SmartCard reader into the ExpressCard54 slot. SmartCards see some usage in corporate environments to allow for personalized logins. BIOS access can be locked with a password and a passive TPM 1.2 Embedded Security Chip for business usage is installed, allowing for unambiguous identification of a computer via a cryptographic key code. The keyboard is splash-proof and comes equipped with a drain in the bottom panel. All security solutions are bundled in the HP ProtectTools Security Manager.

Accessories

The HP 6475b wouldn't be a real business laptop without a matching docking solution. Both the HP 230W and the 90W docking stations (which cost around $180 and $160 respectively) fit, expanding the HP ProBook with a serial, PS2, DVI and parallel port. The Advanced Docking Station (Upgrade Bay, eSATA) is also suitable for usage with the 6475b. It costs around $280. All docking stations offer their own power supply, thereby also recharging the laptop.

The bottom panel also sports a battery port, where the travel battery pack (73 Wh, $80) can be attached as a slice beneath the base unit. This might be a recommendable addition to the P6475b, since its battery life of 4 hours (Wi-Fi usage) is rather fair to middling.

A Windows 8 Pro Recovery DVD is enclosed. This is not the case for Windows 7 Pro - with which the P6475b ships - as only a recovery partition exists. The HP laptop comes with few manuals: A Windows 8 installation guide and a setup booklet, that's it.

Maintenance

Maintenance is a breeze; the bottom panel can easily be removed by activating a simple slider mechanism. Afterwards, all internal components are accessible, including fans, CPU, RAM and the Mini PCI-Express ports (Wi-Fi, optional 3G modem). The Seagate HDD is a standard 9.5mm specimen so that all common 2.5-inch SATA SSDs and HDDs can be installed.

Warranty

HP offers 12 months of warranty for its ProBooks, however, in some countries, the laptop has to be sent in. This warranty can be extended to cover up to 3 years next-workday on-site service (Care Pack Services) for a hefty $300.

ProtectTools Security Manager
ProtectTools Security Manager
ProtectTools Device Access
ProtectTools Device Access
ProtectTools TPM activation
ProtectTools TPM activation
HP Webcam Software
HP Webcam Software

Despite its decent resolution (1280x720 pixels), the HD webcam suffers from bad image quality due to pale colors and a hit-and-miss autofocus. The Power Assistant is meant for switching between different energy profiles for different application or usage scenarios, replacing the more tedious Windows energy modes.

Webcam photo (1280x720)
Webcam photo (1280x720)
Reference picture (Canon EOS 1100D)
Reference picture (Canon EOS 1100D)
Power Assistant / Profile
Power Assistant / Profile

Input Devices

How we test - Input Devices

Keyboard

The keys of the 6475b offer a well-defined pressure point, generous travel as well as firm feedback. Nothing wobbles or bends when pressure is applied. We have a sweet tooth for the arrow keys, which can be accessed well without looking, even though they are not separated from the rest of the keys.

Writing maniacs are going to appreciate the slightly conic shape of the keys which guide the fingers, caressing them haptically. The Return key is a bit on the narrow side due to the neighboring Page Up and Page Down keys, but this didn't diminish our typing experience - the full-sized right Shift key is much more important in our opinion. In addition to the standard keys, there are also hardware buttons for the radio modems, speakers and the browser, which complement the function keys perfectly while being easy to reach.

Touchpad

The touchpad is positioned in a small, edged depression. The Synaptics LuxPad V7.5 (110 mm diagonally) is quite sensitive even in its edge regions, while offering an enjoyably smooth gliding experience. There is both a vertical and a horizontal scroll bar - neither of which is marked on the touchpad. One-finger scrolling is deactivated in its delivery condition.

The mouse keys are made from hard rubber, rendering them slip-proof. Travel is extraordinarily large and the keys can easily be actuated. Their feedback is great, increasing productivity far more than the usual rigid, short-winded keys of almost all consumer laptops.

The Synaptics touchpad comes equipped with a small palm sensor, deactivating the touchpad while the keyboard is in use. Like in all consumer laptops nowadays, this touchpad is also multitouch-enabled, thus allowing for two-finger scrolling, pinching or twisting.

Keyboard
Keyboard
Numpad
Numpad
Touchpad
Touchpad

Display

How we test - Display

WXGA++ 1600x900
WXGA++ 1600x900

The WXGA++ display of our ProBook 6475b model offers a very decent resolution of 1600x900 pixels. It provides an alternative to the HD panels (1366x768) of some low-cost variants of the P6475. The LG panel (type LP140WD1-TLD2) is matte, so that no strong reflections occur.

The brightness of the TN panel depends on the availability of an external power supply, throttling down from 205 cd/m² to 136 cd/m² while running on battery power. Brightness homogeneity levels of 77% are also disappointing - most test devices exceed 80%. However, no halos could be discerned visually near the edges.

The 6475b offers a contrast ratio of 209:1 due to a black level of 0.95 cd/m² (measured in the center). This is not much, but sill typical for its class. The competition (Vostro 3460, ThinkPad L430 and TravelMate P643) ends up with similar ratios.

192
cd/m²
189
cd/m²
180
cd/m²
205
cd/m²
199
cd/m²
193
cd/m²
224
cd/m²
233
cd/m²
231
cd/m²
Distribution of brightness
Information
X-Rite i1Pro 2
Maximum: 233 cd/m²
Average: 205.1 cd/m²
Brightness Distribution: 77 %
Center on Battery: 136 cd/m²
Black: 0.95 cd/m²
Contrast: 209:1

"Color space" are two important words for digital artists and graphics designers which require good agreement between real-life colors and their digital substitutes. Like its competitors, the 6475b does not manage to fully cover the sRGB color space, let alone the AdobeRGB color space. However, even expensive business laptops have a hard time fulfilling these requirements, as the last two graphs show. Even Lenovo's X1 Carbon (sporting the same HD+ resolution) fails to render all of the sRGB color space, despite expanding it upwards.

ICC HP 6475b vs. sRGB(t)
ICC HP 6475b vs. sRGB(t)
ICC HP 6475b vs. AdobeRGB(t)
ICC HP 6475b vs. AdobeRGB(t)
ICC HP 6475b vs. Dell Latitude E6530 FHD(t)
ICC HP 6475b vs. Dell Latitude E6530 FHD(t)
ICC HP 6475b vs. Lenovo X1 Carbon Touch(t)
ICC HP 6475b vs. Lenovo X1 Carbon Touch(t)

Due to its matte display, outdoor usage seems viable, but the non-preventable dimming down to 136 cd/m² while on battery power destroys these hopes. Our test image below is barely visible in sunlight, even less so from the sides. The situation can be improved by plugging the laptop into an outlet, however, even then 205 cd/m² may not be enough for a pleasant day on the terrace. 250 cd/m² or more would be needed for acceptable outdoor usage. 

No reflections (cloudy)
No reflections (cloudy)
Frontal view (cloudy)
Frontal view (cloudy)
Lateral view (cloudy)
Lateral view (cloudy)

Wide viewing angles are important, allowing the user to make out all the details on the display even from the sides or from above. Office notebooks often employ inexpensive TN panels, leading to limited viewing angles. The 6475b doesn't perform quite as bad as some of its competitors. Horizontally, the display begins to darken at around 40 degrees, while color distortions occur beyond 70 degrees.

Vertical deviations are less benign. Colors start to invert at approximately 15 degrees, text becomes unrecognizable at 25 degrees or less. The Vostro 3460, the ThinkPad L430 and the TravelMate P643 offer the same experience concerning vertical viewing angles, but they fare worse in the horizontal direction (image stability lasting to around 45 degrees).

Viewing angles HP ProBook 6475b
Viewing angles HP ProBook 6475b

Performance

How we test - Performance

In the case of its 6475b model, HP employs the AMD Trinity platform (Intel is used in the 6470b). Only one of the variants, the A3Z20AV, sports an A8-4500M quad-core processor (4 x 1.9 GHz, accompanied by a Radeon HD 7640G, but without a Windows 8 license), while the other variants - one of them being our test version - come equipped with a dual-core AMD A6-4400M processor (2 x 2.7 GHz).

Only one of the two memory banks is occupied by a single 4 GB RAM module. Since Windows 7 Pro (32-bit) came preinstalled, all tests have been performed under Windows 7, despite the 6475b being shipped with a Windows 8 DVD. The graphics board of our test device is an integrated HD 7520G which snaps off 512 MB RAM.

Systeminfo CPUZ CPU
Systeminfo CPUZ Cache
Systeminfo CPUZ Mainboard
Systeminfo CPUZ RAM
Systeminfo CPUZ RAM SPD
Systeminfo GPUZ Radeon HD 7520G
DPC Latenzen Idle OK
DPC Latenzen WLAN On/Off OK
System information HP ProBook 6475b

Processor

CPU @full load: 2.4 to 2.9 GHz stable
CPU @full load: 2.4 to 2.9 GHz stable

Cinebench 11.5 does not work in a 32-bit environment, which is why we had to use the 32-bit version of the R10 Multi benchmark. Typical business laptops are equipped with an Intel Core i3 (+ 80-90%) or an i5 (+ 160-190%), rendering them much more potent than AMD's dual-core processor. Even the A8-4500M variant cannot compete with Intel's Core i platform, outperforming the A6-4400M by only 30% (this being an average taken over five test devices).

According to its fact sheet, the CPU clock speed varies between 2.7 and 3.2 GHz due to its turbo core. However, even under full load we measure only a value swaying between 2.4 and 2.9 GHz - for both cores. The clock speed decreases whenever the GPU is needed, as can also be seen in our high-temperature stress test evaluation.

Redeployment of resources is a fundamental principle of Accelerated Processing Units (APUs), distributing and allotting energy input variably between the CPU and GPU. While the Intel Core platform is capable of exhausting the maximum performance levels of both units at the same time, this cannot be done with the A6 or the A8. Only while operating on battery can the AMD APU use both CPU and GPU to the fullest (When 'Maximize Power' is chosen in the PowerPlay Battery settings), yielding similar Cinebench and 3DMark 11 scores as before.

Cinebench R10 - Rendering Multiple CPUs 32Bit (sort by value)
HP ProBook 6475b
Radeon HD 7520G, A6-4400M, Seagate Momentus 7200.4 ST9500423AS
3407 Points ∼10%
Fujitsu Lifebook S752
HD Graphics 3000, 2328M, WDC Scorpio Blue WD3200BPVT-16JJ5
6451 Points ∼19% +89%
Asus B43E-VO158X
HD Graphics 3000, 2350M, Seagate Momentus 5400.6 ST9500325AS
6703 Points ∼19% +97%
Dell Vostro 3460
GeForce GT 630M, 3210M, Seagate Momentus 7200.4 ST9500423AS
8832 Points ∼25% +159%
Asus Pro B43V-CU024X
NVS 5200M, 3210M, Toshiba MQ01ABD050
8952 Points ∼26% +163%
Lenovo ThinkPad L430
HD Graphics 4000, 3210M, Hitachi Travelstar Z7K500 HTS725050A7E630
8945 Points ∼26% +163%
Dell Latitude E5430
HD Graphics 4000, 3360M, Seagate Momentus Thin ST320LT007-9ZV142
10073 Points ∼29% +196%
Cinebench R10 Rendering Single 32Bit
2383
Cinebench R10 Rendering Multiple CPUs 32Bit
3407
Cinebench R10 Shading 32Bit
4966
Help

System Performance

PCMark 7 sub scores
PCMark 7 sub scores

PC Mark 7 yields a score of 1615 points. That's considerably less than the Core i5 competitors, the Vostro 3460, the ThinkPad L430 and the TravelMate P643. The Vostro 3460 fares best, both due to its fast GT 630M graphics board and its HDD cache, resulting in a high storage score. The P643's GT 640M GPU is even better, but it gets slowed down by its weak HDD performance. The HP ProBook 6475b's HDD scores in PCMark 7 and Vantage are actually quite okay for a 7200 rpm-HDD, but that is not enough to make up for its weaker CPU when compared to the Intel systems.

Core i3 systems like the Fujitsu S752 (HD 3000) are approximately on par with and possibly slightly superior to the 6475b. An SSD would be capable of boosting both synthetic and real-life performance considerably, as had been shown with our ProBook 6465b test device in 2012 (PCMark 7: 2420 points, Samsung SSD 470). Without an SSD, system boot times are mediocre (70 seconds until everything has been loaded) and programs may take a few extra seconds to start. This suffices for simple office applications, but Intel might be a more future-proof alternative: The ProBook 6470b sibling (our test device had a Core i5) managed to achieve 7256 points in the PCMark Vantage benchmark (instead of 4194 for the 6475b).

PCMark 7
Score (sort by value)
HP ProBook 6475b
1615 Points ∼24%
Acer TravelMate P643-MG-53214G75Mikk
2050 Points ∼31% +27%
Fujitsu Lifebook S752
1806 Points ∼27% +12%
Asus Pro B43V-CU024X
2069 Points ∼31% +28%
Lenovo ThinkPad Edge S430
2196 Points ∼33% +36%
Lenovo ThinkPad L430
2881 Points ∼43% +78%
Dell Latitude E5430
3054 Points ∼46% +89%
Dell Vostro 3460
3281 Points ∼50% +103%
System Storage (sort by value)
HP ProBook 6475b
1638 Points ∼23%
Acer TravelMate P643-MG-53214G75Mikk
1417 Points ∼20% -13%
Fujitsu Lifebook S752
1348 Points ∼19% -18%
Lenovo ThinkPad Edge S430
1758 Points ∼25% +7%
Dell Vostro 3460
4091 Points ∼57% +150%
4.5
Windows 7 Experience Index
Processor
Calculations per second
5.6
Memory (RAM)
Memory operations per second
5.5
Graphics
Desktop performance for Windows Aero
4.5
Gaming graphics
3D business and gaming graphics
5.9
Primary hard disk
Disk data transfer rate
5.9
PC Mark
PCMark Vantage4194 points
PCMark 71615 points
Help

Storage Devices

Data transfer rates are just average in both HD Tune and Crystal Disk Mark, with 87 MB/s and 100 MB/s read speed respectively. Nowadays, little difference is left between 5400 rpm and 7200 rpm HDDs. 4K-test results are far worse with 0.4 to 0.8 MB/s compared with up to 20 MB/s for SSDs, but HDDs are at a natural disadvantage when it comes to reading small scattered files as they have to move their reading heads into position first. Accordingly, the Vostro 3460 manages to achieve a 19 MB/s 4K read score due to its SSD cache, although this is a partially artificial result since it only takes into account accessing the small cache storage.

HD Tune 87 MB/s read seq.
HD Tune 87 MB/s read seq.
Crystal Disk Mark 98 MB/s read seq.
Crystal Disk Mark 98 MB/s read seq.
Seagate Momentus 7200 ST9500423AS 500 GB 7200 rpm
Seagate Momentus 7200 ST9500423AS 500 GB 7200 rpm
Seagate Momentus 7200.4 ST9500423AS
Transfer Rate Minimum: 50.1 MB/s
Transfer Rate Maximum: 111.6 MB/s
Transfer Rate Average: 87.6 MB/s
Access Time: 15.5 ms
Burst Rate: 62.2 MB/s
CPU Usage: 15 %

Graphics Card

The HD 7520G branches off up to 512 MB of main memory and boasts higher clock speeds than the HD 7640G of the A8-4500M (the AMD quad-core alternative to the 6475b) while settling with only 192 shader core units (the HD 7640G comes with 256), thus having to content itself with slightly worse benchmark results. The HD 7520G profits from dual channel memory, however, only one memory bank is in use in the 6475b. Still, it was never meant to power PC games or to conduct demanding encoding tasks. Its strengths lie with its low power consumption in idle mode (especially when the laptop is running on battery) and as an aide in decoding (Video Encoder) to the under-performing Piledriver core. More information can be found on the GPU data sheet.

The Radeon graphics card of the 6475b barely manages to squeeze ahead of the Intel HD 4000 in terms of processing power as our 3D Mark 11 figure shows. It doesn't stand a chance in both the brand-new 3DMark Cloud Gate (HD 4000: +59%; Vaio SV-E14 i3 3120M) and the Fire Strike benchmark (HD 4000: +36%) though.

Performance of the Radeon HD 7520G might increase by around 15% (empirical value) if a second RAM module was installed, making use of its dual channel mode. Even then, dedicated cards would still be uncatchable, as the 3DMark 11 performance of the GT 620M (S430), the NVS 5200M (B43V) and the GT 630M (Vostro 3460) can be up to twice as good. Of these three, only the Asus laptop sports an actual "business GPU". Still, the CAD/CAM-optimized drivers of the NVS 5200M will be probably be irrelevant for most users, making it a no better choice than its GeForce counterparts.

3D Mark
3DMark 06
 1280x1024
3832 points
3DMark Vantage2011 points
3DMark 11608 points
3DMark Ice Storm24204 points
3DMark Cloud Gate2148 points
Help
3DMark 11 - 1280x720 Performance (sort by value)
HP ProBook 6475b
608 Points ∼4%
Lenovo ThinkPad L430
585 Points ∼4% -4%
Dell Latitude E5430
689 Points ∼5% +13%
Lenovo ThinkPad Edge S430
793 Points ∼6% +30%
Asus Pro B43V-CU024X
1138 Points ∼8% +87%
Dell Vostro 3460
1260 Points ∼9% +107%

Gaming Performance

The integrated GPU has not been designed with modern games in mind, which may even become apparent for office users during occasional gaming sessions. The only exceptions are undemanding games such as FIFA 13, which actually runs smoothly in HD. The data sheet of the HD 7520G provides an elaborate list of games and their performance. Obviously, modern PC games are a no-go. This holds true not only in the case of 3D shooter games like Crysis 3 and MoH: Warfighter, but also for Sim City (2013 version). Performance of an HD 4000 in combination with a Core i3 (ProBook 4340s) is marginally better, sometimes even worse (FIFA 13). Similar considerations apply in case of the HD 3000.

HP ProBook 6475b
AMD A6-4400M, AMD Radeon HD 7520G, Seagate Momentus 7200.4 ST9500423AS
Asus B43E-VO158X
Intel Core i3-2350M, Intel HD Graphics 3000, Seagate Momentus 5400.6 ST9500325AS
HP ProBook 4340s H4R47EA
Intel Core i3-3120M, Intel HD Graphics 4000, Hitachi Travelstar Z5K500 HTS545050A7E380
SimCity
1024x768 Low1921
11%
Fifa 13
1366x768 High AA:2xMS4230
-29%
33
-21%
Mass Effect 3
1280x720 all off2121.4
2%
Medal of Honor: Warfighter
1024x768 Low Preset AF:2x1919
0%
Total Average (Program / Settings)
-14% / -14%
-3% / -3%
low med.high ultra
Mass Effect 3 (2012) 21fps
Fifa 13 (2012) 654942fps
Medal of Honor: Warfighter (2012) 1913fps
Dead Space 3 (2013) 442318fps
Crysis 3 (2013) 1495fps
SimCity (2013) 19129fps

Emissions

How we test - Emissions

System Noise

Fan and heat pipe of the 6475b
Fan and heat pipe of the 6475b

Noise is no issue with the ProBook 6475b - at least, if the user chooses to deactivate the BIOS option "Fan always on when AC". In that case, the fan remains silent when the laptop is left (mostly) idle, being used only for office tasks and some light browsing. Some ambient noise exists due to the 7200 rpm HDD, which causes a minimal sound pressure of 32.6 dB(A).

Even when the fan is spinning slowly, the HDD remains the loudest component. At least, no disturbing vibrations occurred - a problem earlier ProBook models encountered. The read-write heads are quieter than the HDD rotation, so that general noise levels remain rather constant. Even the radiator, which is sometimes active for approximately 30 to 60 seconds, doesn't surpass 33 dB(A).

Under full load, 36.6 to 39.7 dB(A) was measured. At least the upper limit will hardly ever be reached in normal office use as it was derived in our stress test (see below), which lacks in practical relevance. Three of the 6475b's competitors - the Vostro 3460, the TravelMate P643 and the Asus Pro B43V - are louder due to their dedicated GPUs, at least under full load (up to 46 dB(A)). Both the ThinkPad L430 (HD 4000) and the Edge S430 (GT 620M) fare better in this regard (35 and 33 dB(A)).

Noise Level

Idle 32.6 / 32.6 / 32.8 dB(A)
HDD 32.9 dB(A)
DVD 38.7 / dB(A)
Load 36.6 / 39.7 dB(A)
 
    30 dB
silent
40 dB
audible
50 dB
loud
 
min: , med: , max:    Voltcraft sl-320 (15 cm distance)

Temperature

When idle, the underbelly of the 6475b remains fairly cool with an average of 34 °C, although some parts of the bottom panel can get as warm as 38 °C (most likely because of the deactivated fan, since these parts actually get cooler under full load when the fan spins up). Palm rest temperatures are more pleasant still, reaching approximately 30 °C.

We appreciate that both the palm rest and the keys themselves remain rather cool, with the latter becoming lukewarm at best, while the former remain cool (up to 32 °C) even under full load. Temperatures underneath the laptop don't exceed 41 °C (this maximum value is reached above the fan during our stress test) while their average only increases by 1 °C when compared to the idle state. When no demanding tasks are active, all the waste heat gets distributed rather evenly across the case, but during the stress test, the 6475b's heatpipe (recuperator) concentrates all of it at one point, which is exactly where we measure this maximum of 41 °C.

As we have mentioned in the Performance section, the stress test - where both Furmark and Prime95 are active at the same time - leads to a redistribution of computational power between the CPU and the GPU, with the graphics card running at full power (685 MHz, maximum turbo), while the CPU is throttled down to 910 MHz on a single core.

Stress test start: CPU @1.4 GHz or 910 MHz
Stress test start: CPU @1.4 GHz or 910 MHz
Stress test: Focus at GPU speed; CPU temporary at 910 MHz
Stress test: Focus at GPU speed; CPU temporary at 910 MHz
Furmark Solo: GPU @685MHz, max. Turbo
Furmark Solo: GPU @685MHz, max. Turbo
Max. Load
 29.8 °C32.3 °C32.2 °C 
 28.7 °C33.2 °C34.8 °C 
 27 °C31.5 °C32.4 °C 
Maximum: 34.8 °C
Average: 31.3 °C
41.3 °C39.3 °C32 °C
36.4 °C38.2 °C28.74 °C
34.8 °C31.8 °C29 °C
Maximum: 41.3 °C
Average: 34.6 °C
Power Supply (max.)  49.1 °C | Room Temperature 23.8 °C | Voltcraft IR-360

Speakers

Both speakers are located beneath the laptop, in a box made out of plastic which has been integrated close to the user in the front. Basses are unconvincing and the chassis vibrates considerably, but at least distortions at full volume turn out to be minimal. Plus, the 6475b is as loud as office laptops go. It shouldn't be hard to fill an entire conference room with its sound.
 
Mids and highs were unbalanced. As with most laptops without a dedicated subwoofer or more powerful speakers in general, emphasis is put on the mids. Still, external speakers and microphones can always be plugged in via not one but two separate 3.5 mm ports, one for Line In, the other for Line Out. This could lead to a better audio quality than with the combined Line In/Out ports which are much more common in consumer notebooks. Unfortunately, the connections have not been reinforced with metal, making them more susceptible to breaking when used intensively.

Energy Management

How we test - Battery life

Power Consumption

The HP ProBook 6475b is a rather power-hungry machine, as evidenced by a minimum power consumption of 10.5 watts (while idle, with an active energy saver profile and minimal luminance) which foreshadows no more than average battery life. Power consumption during idle mode tops out at 16.5 watts (high performance profile). The 6475b's Intel competitors prove to be more economical: 9 to 15 watts (Vostro 3460), 7 to 12.5 watts (ThinkPad L430) and 8 to 11 watts (TravelMate P643) respectively.

This situation reverses under full load. Power consumption increases when both CPU and GPU are working together (39 to 40 watts, 3DMark 06 & stress test), but still ends up being exceeded by its competitors, which require 64 to 66 watts (Vostro 3460), 36 to 48 watts (ThinkPad L430) and 58 to 60 watts (TravelMate P643) respectively. The difference stems from their dedicated GPUs.

The power adapter supplies 65 watts, which is adequate for the 6475b. Recharging the battery takes 1:50 h, an acceptable charging time.

Power Consumption

Off / Standby 0.3 / 0.3 Watt
Idle 10.5 / 14.8 / 16.5 Watt
Load 39.1 / 40.3 Watt
 
Key: min: , med: , max:         Voltcraft VC 960

Battery Life

The 14-inch laptop sports a comparatively small 48 Wh battery. Its Intel competitors, the Vostro 3460 (48 Wh, 3:52 h during our Wi-Fi test), the ThinkPad L430 (57 Wh, 3:30 h) and the TravelMate P643 (66 Wh, 6:05 h) tend to boast higher capacities, which in combination with their low power consumption leads to better battery life when idle. During our Wi-Fi benchmark, our test device (which comes equipped with a 55 Wh battery) achieves 4:15 hours at 150 cd/m² brightness (actually, 136 cd/m²).

The Battery Eater Reader's Test (CPU and GPU are idle, all radio modems are deactivated and brightness is set as low as it gets) yields 9:01 hours. DVD playback lasts 3:54 hours, which is almost as good as during the Wi-Fi test because the DVD video test demands full display brightness, while the 6475b is incapable of going beyond 136 cd/m² as long as it is on battery. Our test device manages to squeeze 2:01 hours out of its battery under full load. Only one of its competitors surpasses the two-hour mark as well, the P643 (2:03 h due to its 66 Wh battery). A comparable 48 Wh battery in an Intel laptop only manages to reach 1:15 h (Vostro 3460).

Charging 110 min
Max. battery life (Reader's Test)
Idle 541 min
Min. battery life  (Classic Test)
Wi-Fi test 255 min
DVD playback 234 min
Full load 121 min
Battery Runtime
Idle (without WLAN, min brightness)
9h 01min
WiFi Surfing
4h 15min
DVD
3h 54min
Load (maximum brightness)
2h 01min

Verdict

How we test - Verdict

HP (mostly) made the right choices with the ProBook 6475b, delivering a more or less balanced package of time-proven office features. We appreciate the excellent feedback its input devices (keys, touchpad) provide. Its conically curved keys come particularly close to the level of much more expensive laptops including the Dell Latitude, Lenovo ThinkPad (T and L) and HP EliteBook series.

Its understated look works very well with the matte aluminum touch to its surfaces. But the 6475b is not just all show and no substance. Connectivity is important to the ProBook, with options ranging from external docking stations, DisplayPort and VGA ports (for high-resolution as well as legacy displays) to an ExpressCard54 slot for old extension cards which are still being used for measuring devices by craftspeople and engineers. Traditionalists can rejoice: HP has chosen to install Windows 7 Pro (32 bit), although the 6475b ships with a Windows 8 DVD as well.

The HP ProBook is also very maintenance-friendly. Plus, there are many variants to choose from, including some with UMTS and/or an HD panel (if a lower resolution than HD+ is desired). There is no SSD option though - this has to be installed by the user.

Ergonomics in idle mode or under half load could have been better and although the fan can be deactivated through an option in the BIOS (turn "Fan always on when AC" off), the background noise the HDD produces can be heard at all times. Then again, excess heat is no issue - neither while idle nor under full load.

Despite of our praise for its well-balanced color rendition, the TN panel only manages to secure a score of 76%, since a typical user of the ProBook 6475b will most likely not be a professional digital artist or graphics designer so that an exact reproduction of real-life colors is not as crucial as it could be. The weaknesses of the display lie with its low contrast and terrible brightness, especially so when it is running on battery power: Maximum brightness gets throttled down to 137 cd/m². Outdoor usage becomes a pain. Hardly any screen contents at all can be read under direct sunlight.

Other laptops offer more in terms of processor, graphics card and memory for the same price point as our test device ($900), namely Core i5 CPUs with dedicated GPUs for an improved gaming performance. Great input devices, an optional docking station, a matte WXGA++ display and a superbly stable, well-built chassis are harder to find for less than $1000. Only variants of the Vostro 3460 or the ThinkPad L430 offer such amenities. The TravelMate P643, equipped with a gaming-friendly GT 640M, tempts with its great value-for-money ratio, while the best input devices and highest build quality can be found in one of the cheaper (HD panel) Latitude E5430 configurations.

We have written reviews of all of the following competitors to the 6475b and we recommend having a look at them before a purchase decision is made. If this takes too much time, it is also possible to just focus on the four models which are highlighted in bold.

HP ProBook 6475b (C5A55EA): Old-school notebook with an old-school weak display panel (brightness, contrast)
HP ProBook 6475b (C5A55EA): Old-school notebook with an old-school weak display panel (brightness, contrast)
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In Review: HP ProBook 6475b C5A55EA
In Review: HP ProBook 6475b C5A55EA

Specifications

HP ProBook 6475b

:: Processor
AMD A6-4400M 2.7 GHz
:: Mainboard
AMD A70M
:: Memory
4096 MB, 1 x 4096 MB PC3-12800 Micron Tech Single Channel
:: Graphics adapter
AMD Radeon HD 7520G - 512 MB, Core: 686 MHz, Memory: 800 MHz, DDR3, 8.947.1.1000 Win7
:: Display
14 inch 16:9, 1600x900 pixel, LG Display LP140WD1-TLD2, TN LED, glossy: no
:: Harddisk
Seagate Momentus 7200.4 ST9500423AS, 500 GB 7200 rpm
:: Soundcard
HD Audio
:: Connections
1 Express Card 54mm, 2 USB 2.0, 2 USB 3.0, 1 Firewire, 1 VGA, 1 DisplayPort, 1 Kensington Lock, 1 eSata, Audio Connections: Line Out, Microphone, Card Reader: SD/MMC, 1 Fingerprint Reader, Sensors: HDD shock sensor,
:: Networking
Realtek PCIe GBE Family Controller (10/100/1000MBit), Broadcom BCM943228HM4L 2x2 WiFi (a b g n ), 4.0 Bluetooth, Optional
:: Optical drive
HL-DT-ST DVD+/-RW GT80N
:: Size
height x width x depth (in mm): 34 x 338 x 231.3
:: Weight
2.395 kg Power Supply: 0.411 kg
:: Battery
55 Wh Lithium-Ion, 10.8 V
:: Price
899 Euro
:: Operating System
Microsoft Windows 7 Professional 32 Bit
:: Additional features
Webcam: 1,3 MP 1280 x 720, Speakers: Stereo, Keyboard: Chiclet, conical, spill-resistant keyboard with drains, Keyboard Light: no, Microsoft Office Starter: Word and Excel only, with ads, Microsoft Security Essentials, Connection Manager, Hotkey Support, Power Assistant, ProtectTools for Central Management, ProtectTools Security Manager, Recovery Manager, Support Assistant, Webcam

 

[+] compare
Quite a lot of business laptop for little money.
Quite a lot of business laptop for little money.
Maintenance options are commendable: A second memory bank can be installed.
Maintenance options are commendable: A second memory bank can be installed.
There is a slot for a 56K/V90 modem.
There is a slot for a 56K/V90 modem.
It is not the UMTS module (variant B6P77EA with 3G),
It is not the UMTS module (variant B6P77EA with 3G),
for which a PCI Express Slot has been reserved (antennas are prepared). The two-antenna Wi-Fi module is located right below.
for which a PCI Express Slot has been reserved (antennas are prepared). The two-antenna Wi-Fi module is located right below.
Of course, the hard drive could be swapped for an SSD (9 mm, 2.5-inch).
Of course, the hard drive could be swapped for an SSD (9 mm, 2.5-inch).
The "speaker box" is revealed.
The "speaker box" is revealed.
The fingerprint sensor is a nice addition to all the security features and ports of the ProBook 6475b.
The fingerprint sensor is a nice addition to all the security features and ports of the ProBook 6475b.
The VGA and Ethernet ports are located on the back side.
The VGA and Ethernet ports are located on the back side.
Quite rare: There is an ExpressCard54 slot for extension cards.
Quite rare: There is an ExpressCard54 slot for extension cards.
The matte panel would be perfect for outdoor usage
The matte panel would be perfect for outdoor usage
if it wasn't stifled by weak contrast and low brightness.
if it wasn't stifled by weak contrast and low brightness.
The 65 watts power adapter
The 65 watts power adapter
which never has to provide more than 40 watts (stress test, no charging taking place)
which never has to provide more than 40 watts (stress test, no charging taking place)
is always sufficient
is always sufficient
but weighs 411 grams (including the cable), making it rather heavy for a 65 watts adapter.
but weighs 411 grams (including the cable), making it rather heavy for a 65 watts adapter.
Notably, the cable is 1.2 meters long.
Notably, the cable is 1.2 meters long.
HP ProBook 6475b (C5A55EA)
HP ProBook 6475b (C5A55EA)
which can also be achieved with the help of a single slider.
which can also be achieved with the help of a single slider.
We start by removing the 55 Wh battery,
We start by removing the 55 Wh battery,
HP's ProBooks aim at those customers
HP's ProBooks aim at those customers
flirting with a very good office laptop
flirting with a very good office laptop
for between $700 and $1000.
for between $700 and $1000.
No new performance records are set:
No new performance records are set:
The 6475b is driven by an AMD A6-4400M APU with an integrated AMD Radeon HD 7520G.
The 6475b is driven by an AMD A6-4400M APU with an integrated AMD Radeon HD 7520G.
The APU stands for frugality instead of high performance.
The APU stands for frugality instead of high performance.
In all other regards, the ProBook 6475b is very well capable of
In all other regards, the ProBook 6475b is very well capable of
yielding good or even excellent results.
yielding good or even excellent results.
Its build quality and its matte, brushed aluminum surfaces
Its build quality and its matte, brushed aluminum surfaces
are not only appealing, they also prevent fingerprints.
are not only appealing, they also prevent fingerprints.
The chassis is massive and heavy, but also very resistant to twisting.
The chassis is massive and heavy, but also very resistant to twisting.
Even when treated roughly, ProBooks will rarely suffer
Even when treated roughly, ProBooks will rarely suffer
from cracks in their chassis or from worn lids.
from cracks in their chassis or from worn lids.
Old-school: Locating pins keep the lid close to the base unit.
Old-school: Locating pins keep the lid close to the base unit.
The underside of the laptop is dominated by a large maintenance hatch,
The underside of the laptop is dominated by a large maintenance hatch,
which can be removed without a screwdriver by sliding it open.
which can be removed without a screwdriver by sliding it open.
The 6475b comes with a small screw to prevent unauthorized access.
The 6475b comes with a small screw to prevent unauthorized access.
HP ProBook 6475b (C5A55EA)
HP ProBook 6475b (C5A55EA)

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Links

  • Manufacturer's information

Price Comparison

Pro

+Great build quality, stable
+Excellent connectivity, many ports
+Heat management
+Very good input devices
+Good battery life
+Matte display with good color rendition
+Above-average viewing angles for a TN panel
+Many security features
+Windows 7 Pro + Windows 8 Pro
 

Cons

-Low contrast, low brightness
-High weight
-HDD noise always present
-Low application performance
-No SSD variant sold by HP
-Windows 7 Pro is 32-bit only

Shortcut

What we like

Understated design, surfaces suitable for daily use, high stability. Such a chassis will last for years without accumulating ugly traces of usage.

What we'd like to see

A silent HDD or even better, a fast SSD. The panel should have been brighter, but an increased contrast ratio wouldn't have hurt either.

What surprises us

HP doesn't offer any SSD variant - an upgrade option its predecessor (the ProBook 6465b) provided.

The competition

Dell Latitude E6430 (i3, HD 3000); Dell Latitude E5430 (i3, HD 3000); Dell Vostro 3460 (i5, GT 630M, WXGA++); Asus Pro B43V-CU024X (i5, GT 630M, 128 GB SSD); ASUS B43E-VO158X (i3, HD 3000); Acer TravelMate P643-MG-53214G75Mikk (i5, GT 640M); Fujitsu Lifebook S752 (i3, HD 3000); HP ProBook 6465b LY433EA (A6-3410MX, 128 GB SSD); HP ProBook 6470b (i5, HD 4000); Lenovo ThinkPad L430 (i5, HD 4000, WXGA++); Lenovo ThinkPad Edge S430 (i5, GT 620M, WXGA++); Toshiba Tecra R840-11E (i5, HD 3000).

Rating

HP ProBook 6475b
03/27/2013 v3
Sebastian Jentsch

Chassis
88%
Keyboard
90%
Pointing Device
87%
Connectivity
84%
Weight
82%
Battery
89%
Display
71%
Games Performance
65%
Application Performance
84%
Temperature
88%
Noise
85%
Add Points
85%
Average
83%
85%
Office *
Weighted Average

> Notebook / Laptop Reviews and News > Reviews > Archive of our own reviews > Review HP ProBook 6475b Notebook
Author: Sebastian Jentsch, 2013-04- 7 (Update: 2013-06- 6)