AMD Radeon HD 7640G + HD 7670M Dual Graphics
The AMD Radeon HD 7640G + HD 7670M Dual Graphics is the combination of a integrated AMD Radeon HD 7640G APU processor graphics card and a dedicated entry level AMD Radeon HD 7670M graphics card in CrossFire combination. It is called AMD Dual Graphics or asymmetric CrossFire and uses AFR (Alternate Frame Rendering) to render different frames on the two graphic cores. Therefore the combination also suffers from micro stuttering (different spaces between two images lead to stuttering altough the framerate is high enough for fluent gaming with only one GPU).
The performance of the Dual Graphics solution depends greatly on the driver support for the used games. In some games the performance may even degrade by 10-15% compared to using only the APU graphics card. Therefore, due to the micro stuttering and performance problems, Dual Graphics may impose more problems than bring performance gains. Only in a best case scenario the performance is similar to the GeForce GT 635M.
The features like PureVideo HD (UVD3) or OpenCL support are similar to the two graphics cards.
As both graphics cards are rendering frames, the power consumption is clearly higher than using only one GPU.
Radeon HD 7600M Series |
Architecture | Terascale 3 |
Pipelines | 736 - unified |
Core Speed | 655 / 600 MHz |
Memory Speed | 1800 MHz |
Memory Bus Width | 128 Bit |
Shared Memory | yes |
API | DirectX 11, Shader 5.0, OpenGL 4.2 |
technology | 32/40 nm |
Notebook Size | medium sized |
Date of Announcement | 15.05.2012 |
Benchmarks
Performance Rating - 3DMark 11 + Fire Strike + Time Spy
3.4 pt (3%)
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark - 3DMark Cloud Gate Score
min: 3566 avg: 3709 median: 3566 (4%) max: 3995 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark - 3DMark Cloud Gate Graphics
min: 5715 avg: 6138 median: 5715 (2%) max: 6983 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark - 3DMark Fire Strike Standard Score
min: 529 avg: 571 median: 529 (1%) max: 654 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark - 3DMark Fire Strike Standard Graphics
min: 623 avg: 666 median: 623 (1%) max: 753 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark - 3DMark Ice Storm Graphics
min: 37273 avg: 48282 median: 53786 (7%) max: 53786 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark 11 - 3DM11 Performance Score
min: 1585 avg: 1626 median: 1628 (2%) max: 1664 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark 11 - 3DM11 Performance GPU
min: 1629 avg: 1671 median: 1649 (2%) max: 1757 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark Vantage
3DM Vant. Perf. total +3DMark Vantage - 3DM Vant. Perf. total
min: 4696 avg: 4970 median: 5049 (1%) max: 5085 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DM Vant. Perf. GPU no PhysX +3DMark Vantage - 3DM Vant. Perf. GPU no PhysX
min: 4554 avg: 4812 median: 4887 (3%) max: 4918 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark 03 - 3DMark 03 - Standard
21584 Points (11%)
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark 05 - 3DMark 05 - Standard
min: 10288 avg: 10403 median: 10288 (11%) max: 10632 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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3DMark 06 3DMark 06 - Standard 1280x1024 +min: 7090 avg: 8122 median: 8451.5 (12%) max: 8493 Points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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Unigine Heaven 3.0 - Unigine Heaven 3.0 DX 11
13.9 fps (5%)
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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Unigine Heaven 3.0 - Unigine Heaven 3.0 OpenGL
10.6 fps (5%)
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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Cinebench R10 Cinebench R10 Shading (32bit) +Cinebench R10 - Cinebench R10 Shading (32bit)
min: 4566 avg: 4589 median: 4589 (3%) max: 4612 points
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +Cinebench R11.5 - Cinebench R11.5 OpenGL 64 Bit
min: 17.26 avg: 24.4 median: 24.4 (9%) max: 31.57 fps
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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LuxMark v2.0 64Bit - LuxMark v2.0 Room GPU
145 Samples/s (1%)
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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LuxMark v2.0 64Bit - LuxMark v2.0 Sala GPU
342 Samples/s (1%)
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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ComputeMark v2.1 - ComputeMark v2.1 Result
772 points (1%)
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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- Range of benchmark values for this graphics card

- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
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 detailed information on the benchmark results, click on the fps number.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» The benchmarks indicate that the game is not playable in the tested settings.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings high.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» The benchmarks indicate that the game is not playable in the tested settings.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings ultra.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With most tested laptops playable in detail settings low.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings ultra.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings low.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings low.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings med..
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings low.
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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AMD Radeon HD 7640G + HD 7670M Dual Graphics
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» With all tested laptops playable in detail settings med..
For more games that might be playable and a list of all games and graphics cards visit our Gaming List