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AMD Radeon HD 7660G + HD 7670M Dual Graphics

AMD Radeon HD 7660G + HD 7670M Dual Graphics

The AMD Radeon HD 7660G + HD 7670M Dual Graphics is the combination of a integrated AMD Radeon HD 7660G 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. Only in best case scenarios the performance of a GT 640M is possible. Therefore, due to the micro stuttering and performance problems, Dual Graphics may impose more problems than bring performance gains.

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.

ManufacturerAMD
Radeon HD 7600M Series

Radeon HD 7690M XT

480 @ 725 MHz128 Bit @ 3600 MHz

Radeon HD 7690M

480 @ 600 - 725 (Boost) MHz128 Bit @ 3600/1800 MHz
Radeon HD 7660G + HD 7670M Dual Graphics 862 @ 685 / 600 MHz128 Bit @ 1800 MHz

Radeon HD 7640G + HD 7670M Dual Graphics

736 @ 655 / 600 MHz128 Bit @ 1800 MHz

Radeon HD 7520G + HD 7670M Dual Graphics

736 @ 655 / 600 MHz128 Bit @ 1800 MHz

Radeon HD 7670M

480 @ 600 MHz128 Bit @ 1800 MHz

Radeon HD 7650M

480 @ 450 - 550 (Boost) MHz128 Bit @ 1800 MHz

Radeon HD 7630M

480 @ 450 MHz128 Bit @ 1800 MHz

Radeon HD 7640G + HD 7610M Dual Graphics

656 @ 655 / 450 MHz128 Bit @ 1800 MHz

Radeon HD 7610M

400 @ 450 MHz128 Bit @ 1600 MHz
ArchitectureTerascale 2
Pipelines862 - unified
Core Speed *685 / 600 MHz
Memory Speed *1800 MHz
Memory Bus Width128 Bit
Memory TypeDDR3,GDDR5
Shared Memoryno
DirectXDirectX 11, Shader 5.0
technology40 / 32 nm
Notebook Sizemedium sized
Date of Announcement15.05.2012
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark (2013) - Cloud Gate Standard Graphics 1280x720
0% 100%
min: 6635      avg: 6635 (7%)     median: 6635 (7%)     max: 6635 Points
3DMark 11 - Performance GPU 1280x720
0% 100%
min: 2031      avg: 2118 (9%)     median: 2112 (9%)     max: 2252 points
3DMark 11 - Performance 1280x720
0% 100%
min: 1988      avg: 2072.7 (11%)     median: 2073.5 (12%)     max: 2171 points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 5994      avg: 6414.2 (12%)     median: 6607 (13%)     max: 6762 Points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 5995      avg: 6364 (13%)     median: 6528 (14%)     max: 6655 Points
3DMark 06
0% 100%
min: 7455      avg: 7990.6 (21%)     median: 7935 (21%)     max: 8466 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 11763      avg: 11878 (32%)     median: 11878 (32%)     max: 11993 Points
3DMark 03 - Standard 1024x768
0% 100%
min: 21250      avg: 21704.3 (14%)     median: 21905 (15%)     max: 21958 Points
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
0% 100%
min: 11.9      avg: 11.9 (6%)     median: 11.9 (6%)     max: 11.9 fps
PCMark Vantage - Gaming Score 1024x768
0% 100%
min: 3226      avg: 3467.3 (13%)     median: 3307 (13%)     max: 4029 Points
Cinebench R11.5 - OpenGL 64Bit
0% 100%
min: 27.61      avg: 29.8 (24%)     median: 30.4 (25%)     max: 31.31 Points
Cinebench R10 - Shading 32Bit
0% 100%
min: 5211      avg: 5311.4 (36%)     median: 5315 (36%)     max: 5421 Points
Windows 7 Experience Index - Gaming graphics
0% 100%
min: 6.3      avg: 6.3 (80%)     median: 6.3 (80%)     max: 6.4 points
Windows 7 Experience Index - Graphics
0% 100%
min: 5.8      avg: 6 (76%)     median: 5.9 (75%)     max: 6.3 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.

Crysis 3

Crysis 3

2013
low 1024x768
31.4  fps      Compare
med. 1366x768
18.9  fps      Compare
high 1366x768
12.5  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Dead Space 3
low 1024x768
106  fps      Compare
med. 1366x768
48.6  fps      Compare
high 1366x768
37.8  fps      Compare
» With all tested laptops playable in detail settings high.
F1 2012

F1 2012

2012
low 1024x768
32  fps      Compare
med. 1366x768
26  fps      Compare
high 1366x768
24  fps      Compare
ultra 1920x1080
15  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Torchlight 2
low 1024x768
65  fps      Compare
med. 1366x768
47.1  fps      Compare
ultra 1920x1080
35.5  fps      Compare
» With all tested laptops playable in detail settings ultra.
Sleeping Dogs
low 1024x768
42  fps      Compare
med. 1366x768
29  fps      Compare
high 1366x768
15  fps      Compare
ultra 1920x1080
5  fps      Compare
» With all tested laptops playable in detail settings low.
Risen 2: Dark Waters
low 1024x768
30  fps      Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Anno 2070

Anno 2070

2011
low 1024x768
75.6 78 92.4 ~ 82 fps      Compare
med. 1366x768
33.4 48.5 ~ 41 fps      Compare
high 1366x768
22 32.5 ~ 27 fps      Compare
ultra 1920x1080
10.3  fps      Compare
» With most tested laptops playable in detail settings med..
The Elder Scrolls V: Skyrim
low 1280x720
33 37 43.2 ~ 38 fps      Compare
med. 1366x768
27 28.2 33.2 ~ 29 fps      Compare
high 1366x768
19 21 22.9 ~ 21 fps      Compare
ultra 1920x1080
10 10.1 12 ~ 11 fps      Compare
» With most tested laptops playable in detail settings low.
Battlefield 3
low 1024x768
34.9 37.4 37.6 ~ 37 fps      Compare
med. 1366x768
28.9 31.2 33.6 ~ 31 fps      Compare
high 1366x768
24.8 26.8 30.5 ~ 27 fps      Compare
ultra 1920x1080
10.1 10.8 ~ 10 fps      Compare
» With most tested laptops playable in detail settings low.
F1 2011

F1 2011

2011
low 800x600
45 50 ~ 48 fps      Compare
med. 1024x768
32 35 ~ 34 fps      Compare
high 1366x768
28  fps      Compare
ultra 1920x1080
16  fps      Compare
» With all tested laptops playable in detail settings low.
Deus Ex Human Revolution
low 1024x768
105.3  fps      Compare
high 1366x768
56.2  fps      Compare
ultra 1920x1080
25.4  fps      Compare
» With all tested laptops playable in detail settings high.
Dirt 3

Dirt 3

2011
low 800x600
83  fps      Compare
med. 1024x768
48  fps      Compare
high 1360x768
44  fps      Compare
ultra 1920x1080
22  fps      Compare
» With all tested laptops playable in detail settings high.
Mafia 2

Mafia 2

2010
low 800x600
46 46.6 ~ 46 fps      Compare