AMD Radeon HD 6680G2 vs AMD Radeon HD 6690G2

AMD Radeon HD 6680G2

► remove AMD Radeon HD 6680G2

The AMD Radeon HD 6680G2 is the combination of a integrated AMD Radeon HD 6520G APU processor graphics card and a dedicated entry level AMD Radeon HD 6630M 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 Radeon HD 6680G2 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. Currently (June 2011) only DirectX 10 and 11 graphics modes are supported and therefore lower settings and older games are not accelerated. 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.

AMD Radeon HD 6690G2

► remove AMD Radeon HD 6690G2

The AMD Radeon HD 6690G2 is the combination of a integrated AMD Radeon HD 6620G APU processor graphics card and a dedicated entry level AMD Radeon HD 6630M 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 Radeon HD 6690G2 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. Currently (June 2011) only DirectX 10 and 11 graphics modes are supported and therefore lower settings and older games are not accelerated. 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.

AMD Radeon HD 6680G2AMD Radeon HD 6690G2
ManufacturerAMDAMD
Radeon HD 6000G2 Series
Radeon HD 6775G2 (compare) 880
Radeon HD 6755G2 (compare) 880
Radeon HD 6760G2 (compare) 880
Radeon HD 6740G2 (compare) 880
Radeon HD 6720G2 (compare) 880
Radeon HD 6690G2 880
Radeon HD 6680G2 800
Radeon HD 6645G2 (compare) 560
Radeon HD 6640G2 (compare) 560
Radeon HD 6545G2 (compare) 480
Radeon HD 6540G2 (compare) 480
Radeon HD 6515G2 (compare) 400
Radeon HD 6510G2 (compare) 400
Radeon HD 6775G2 (compare) 880
Radeon HD 6755G2 (compare) 880
Radeon HD 6760G2 (compare) 880
Radeon HD 6740G2 (compare) 880
Radeon HD 6720G2 (compare) 880
Radeon HD 6690G2 880
Radeon HD 6680G2 800
Radeon HD 6645G2 (compare) 560
Radeon HD 6640G2 (compare) 560
Radeon HD 6545G2 (compare) 480
Radeon HD 6540G2 (compare) 480
Radeon HD 6515G2 (compare) 400
Radeon HD 6510G2 (compare) 400
ArchitectureTerascale 2Terascale 2
800 - 880 -
nono
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology40 nm40 nm
Size
Introduced14.06.2011 14.06.2011

3DMark 11 - Performance 1280x720
1105 points (3%)
3DMark 11 - Performance GPU 1280x720
1061 points (2%)
3DMark Vantage
P Result 1280x1024 + AMD Radeon HD 6680G2
P GPU no PhysX 1280x1024 + AMD Radeon HD 6680G2
3DMark 06 Standard 1280x1024 + AMD Radeon HD 6680G2
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
10.8 fps (5%)
Windows 7 Experience Index - Gaming graphics
6.5 points (93%)
Windows 7 Experience Index - Graphics
5.9 points (84%)
Cinebench R10 Shading 32Bit + AMD Radeon HD 6680G2
Cinebench R11.5 OpenGL 64Bit + AMD Radeon HD 6680G2

Average Benchmarks AMD Radeon HD 6680G2 → 100%

-
-
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

low 1024x768
100%
Radeon HD 6680G2:
51 fps  fps
high 1366x768
100%
Radeon HD 6680G2:
27.8 fps  fps
Radeon HD 6680G2:
»
Dirt 3

Dirt 3

2011
low 800x600
100%
Radeon HD 6680G2:
64.9  fps
med. 1024x768
100%
Radeon HD 6680G2:
57.6  fps
high 1360x768
100%
Radeon HD 6680G2:
23.7  fps
Radeon HD 6680G2:
»
Total War: Shogun 2

Total War: Shogun 2

2011
low 1024x768
100%
Radeon HD 6680G2:
88.5  fps
med. 1280x720
100%
Radeon HD 6680G2:
30.5  fps
Radeon HD 6680G2:
»
low 800x600
100%
Radeon HD 6680G2:
46 fps  fps
med. 1024x768
100%
Radeon HD 6680G2:
31.7 fps  fps
high 1360x768
100%
Radeon HD 6680G2:
25.2 fps  fps
Radeon HD 6680G2:
»
low 1024x768
100%
Radeon HD 6680G2:
95 fps  fps
med. 1360x768
100%
Radeon HD 6680G2:
28.8 fps  fps
high 1360x768
100%
Radeon HD 6680G2:
20 fps  fps
Radeon HD 6680G2:
»
low 1024x768
100%
Radeon HD 6680G2:
55 fps  fps
med. 1366x768
100%
Radeon HD 6680G2:
44.4 fps  fps
high 1366x768
100%
Radeon HD 6680G2:
33.1 fps  fps
Radeon HD 6680G2:
»
low 800x600
100%
Radeon HD 6680G2:
94 fps  fps
med. 1024x768
100%
Radeon HD 6680G2:
33.6 fps  fps
high 1366x768
100%
Radeon HD 6680G2:
28.2 fps  fps
Radeon HD 6680G2:
»
Risen

Risen

2009
low 800x600
100%
Radeon HD 6680G2:
43 fps  fps
med. 1024x768
100%
Radeon HD 6680G2:
24.6 fps  fps
high 1366x768
100%
Radeon HD 6680G2:
16.6 fps  fps
Radeon HD 6680G2:
»

Average Gaming AMD Radeon HD 6680G2 → 100%

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Redaktion, 2017-09- 8 (Update: 2017-09-11)