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Sony Xperia Tablet Z Review

AMD Radeon HD 7450M

AMD Radeon HD 7450M

The AMD Radeon HD 7450M (sometimes also still called ATI Mobility Radeon HD 7450) is a laptop graphics card for entry level to middle class notebooks. It is based on the old Seymore chip and therefore feature the UVD 3 video decoder. Technically it is therefore just a renamed Radeon HD 6400M chip and due to the support of fast GDDR5, the HD 6450M or HD 6490M should be comparable. The DDR3 version should offer slightly faster clock rates than the GDDR5 version and therefore both should perform similar.

The 120 Stream processors should be still based on the "old" 5D architecture similar to the 5000 series. Therefore, the number of shaders is not comparable to the 1D cores of current Nvidia GPUs. The Tessellation performance should be improved (like the desktop 6800 series) with the new cards. The Stream processors can be used with DirectX 11, OpenGL 4.1, DirectCompute 11 and OpenCL. With the later two the cores can also be used for general computations like transcoding videos.

The performance is somewhere between the 6450M and 6490M depending on the clock speeds and the used graphics memory. The HD 6490M for example was able to run modern games like Starcraft 2 and Call of Duty Black Ops in medium settings and XGA resolution fluently. Very demanding games like Metro 2033 should be playable only in the lowest settings and resolution.

The new UVD3 video decoder supports the decoding of MPEG-4 AVC/H.264, VC-1, MPEG-2, Flash and now also Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD videos on the graphics card.

Furthermore, the HD 6400M series integrates a HD audio controller to transmit HD Audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g. für Blu-Ray videos).

The AMD HD3D Technology offers support for Blu-Ray 3D and 3D displays (integrated and external). However, the solution is not as mature as Nvidias 3D Vision.

Thanks to Eyefinity the graphics chip is able to theoretically drive up to 4 monitors simultaneously. However, this only works if the laptop features enough DisplayPort outputs.

The power consumption of the chip should be similar to the Mobility Radeon HD 5470 and therefore suited for 13" laptops and up.

ManufacturerAMD
Radeon HD 7400M Series

Radeon HD 7490M 160@800MHz

Radeon HD 7470M 160@750 / 800MHz

Radeon HD 7450M 160@700MHz

Radeon HD 7430M 160@600MHz

CodenameSeymour-PRO
ArchitectureTerascale 2
Pipelines160 - unified
Core Speed *700 MHz
Shader Speed *700 MHz
Memory Speed *900 MHz
Memory Bus Width64 Bit
Memory TypeDDR3, GDDR5
Shared Memoryno
DirectXDirectX 11, Shader 5.0
technology40 nm
Date of Announcement08.02.2012
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark 11 - Performance 1280x720
0% 100%
min: 613     avg: 652 (6%)     max: 691 points
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 547     avg: 581.5 (5%)     max: 616 points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 2034     avg: 2280.5 (6%)     max: 2527 Points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 1716     avg: 1938 (5%)     max: 2160 Points
3DMark 06
0% 100%
min: 3886     avg: 4346.5 (15%)     max: 4807 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 8358     avg: 8358 (23%)     max: 8358 Points
3DMark 03 - Standard 1024x768
0% 100%
min: 14302     avg: 14302 (9%)     max: 14302 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 6.3     avg: 6.9 (5%)     max: 7.4 fps
PCMark Vantage - Gaming Score 1024x768
0% 100%
min: 3513     avg: 3513 (13%)     max: 3513 Points
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 17.47     avg: 17.5 (20%)     max: 17.47 Points
Cinebench R10 - Shading 32Bit
0% 100%
min: 3513     avg: 3513 (32%)     max: 3513 Points
Windows 7 Experience Index - Graphics
0% 100%
min: 4.7     avg: 5.3 (67%)     max: 5.9 points
Windows 7 Experience Index - Gaming graphics
0% 100%
min: 6.1     avg: 6.3 (80%)     max: 6.5 points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailled information on the benchmark results, click on the fps number.

Fifa 13
Fifa 13 (2012)
low:
81  fps      Compare
med.:
60  fps      Compare
high:
56  fps      Compare
» With all tested laptops playable in detail settings high.
F1 2012 (2012): Not playable with a weaker graphics card. - more...
Mass Effect 3
low:
24  fps      Compare
high:
18  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Alan Wake (2012): Not playable with a weaker graphics card. - more...
Star Wars: The Old Republic
Star Wars: The Old Republic (2011)
low:
25.6  fps      Compare
high:
16.8  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Anno 2070
Anno 2070 (2011)
low:
48.1 54.5 ~ 51 fps      Compare
med.:
17.1 21 ~ 19 fps      Compare
high:
13.6  fps      Compare
» With all tested laptops playable in detail settings low.
The Elder Scrolls V: Skyrim
low:
29.5  fps      Compare
med.:
20.2  fps      Compare
high:
13.1  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
CoD: Modern Warfare 3 (2011): Playable with a weaker graphics card in detail settings low. - more...
Battlefield 3
low:
17.5 21.8 ~ 20 fps      Compare
med.:
13.9 14.8 ~ 14 fps      Compare
high:
11.2  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Batman: Arkham City (2011): Not playable with a weaker graphics card. - more...
Fifa 12
Fifa 12 (2011)
low:
87 125.3 ~ 106 fps      Compare
med.:
56 69.9 ~ 63 fps      Compare
high:
40 55.6 ~ 48 fps      Compare
» With all tested laptops playable in detail settings high.
F1 2011
F1 2011 (2011)
low:
49  fps      Compare
med.:
30  fps      Compare
high:
21  fps      Compare
» With all tested laptops playable in detail settings low.
Deus Ex Human Revolution
low:
61.3  fps      Compare
high:
19.8  fps      Compare
» With all tested laptops playable in detail settings low.
Dirt 3
Dirt 3 (2011)
low:
75.7  fps      Compare
med.:
38.3  fps      Compare
high:
25  fps      Compare
» With all tested laptops playable in detail settings med..
The Witcher 2: Assassins of Kings (2011): Not playable with a weaker graphics card. - more...
Crysis 2
Crysis 2 (2011)
low:
35  fps      Compare
med.:
23.5  fps      Compare
high:
17.7  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Total War: Shogun 2 (2011): Not playable with a weaker graphics card. - more...
Call of Duty: Black Ops
low:
52.8  fps      Compare
med.:
36.5  fps      Compare
high:
30.1  fps      Compare
» With all tested laptops playable in detail settings med..
Fifa 11 (2010): Playable with a weaker graphics card in detail settings high. - more...
Mafia 2
Mafia 2 (2010)
low:
34.4  fps      Compare
med.:
29.2  fps      Compare
high:
24.7  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
StarCraft 2
StarCraft 2 (2010)
low:
92.9  fps      Compare
med.:
28.4  fps      Compare
high:
19.8  fps      Compare