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
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| 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 | 40 nm | ||||||||||||||||||||||||||||||
| Notebook Size | medium sized | ||||||||||||||||||||||||||||||
| Date of Announcement | 15.05.2012 | ||||||||||||||||||||||||||||||
- Average benchmark valuesThe 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.
| low | med. | high | ultra | QHD | 4K | |
|---|---|---|---|---|---|---|
| Crysis 3 | 28.7 | 15 | 10.5 | |||
| Dead Space 3 | 99.2 | 45.9 | 35.9 | |||
| Hitman: Absolution | 19.9 | 18.7 | 13.4 | |||
| Fifa 13 | 132 | 104 | 101 | 68 | ||
| Dirt Showdown | 36 | 26.7 | 25.5 | |||
| Diablo III | 91 | 74 | 68 | 46 | ||
| Anno 2070 | 78 | 30 | 20 | |||
| The Elder Scrolls V: Skyrim | 35.1 | 30.8 | 25.1 | |||
| F1 2011 | 59 | 37 | ||||
| Deus Ex Human Revolution | 95.5 | |||||
| Dirt 3 | 70.3 | 41.3 | ||||
| low | med. | high | ultra | QHD | 4K | < 30 fps < 60 fps < 120 fps ≥ 120 fps | 2 3 5 1 | 3 5 2 | 5 1 2 | 1 1 | | |
For more games that might be playable and a list of all games and graphics cards visit our Gaming List
» Comparison of GPUs
Detailed list of all laptop GPUs sorted by class and performance.
» Benchmark List
Sort and restrict laptop GPUs based on performance in synthetic benchmarks.
» Notebook Gaming List
Playable games for each graphics card and their average FPS results.
* Approximate position of the graphics adapter
Top 10 Laptops
Multimedia, Budget Multimedia, Gaming, Budget Gaming, Lightweight Gaming, Business, Budget Office, Workstation, Subnotebooks, Ultrabooks, Chromebooks
under 300 USD/Euros, under 500 USD/Euros, 1,000 USD/Euros, for University Students, Best Displays
Top 10 Smartphones
Smartphones, Phablets, ≤6-inch, Camera Smartphones
