AMD Radeon HD 7640G + HD 7670M Dual Graphics vs AMD Radeon HD 7660G + HD 7670M Dual Graphics

AMD Radeon HD 7640G + HD 7670M Dual Graphics

► remove

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.

AMD Radeon HD 7660G + HD 7670M Dual Graphics

► remove 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.

AMD Radeon HD 7640G + HD 7670M Dual GraphicsAMD Radeon HD 7660G + HD 7670M Dual Graphics
ManufacturerAMDAMD
Radeon HD 7600M Series
Radeon HD 7690M XT (compare) 480 @ 725 MHz128 Bit @ 3600 MHz
Radeon HD 7690M (compare) 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 (compare) 736 @ 655 / 600 MHz128 Bit @ 1800 MHz
Radeon HD 7670M (compare) 480 @ 600 MHz128 Bit @ 1800 MHz
Radeon HD 7650M (compare) 480 @ 450 - 550 (Boost) MHz128 Bit @ 1800 MHz
Radeon HD 7630M (compare) 480 @ 450 MHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7610M Dual Graphics (compare) 656 @ 655 / 450 MHz128 Bit @ 1800 MHz
Radeon HD 7610M (compare) 400 @ 450 MHz128 Bit @ 1600 MHz
Radeon HD 7690M XT (compare) 480 @ 725 MHz128 Bit @ 3600 MHz
Radeon HD 7690M (compare) 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 (compare) 736 @ 655 / 600 MHz128 Bit @ 1800 MHz
Radeon HD 7670M (compare) 480 @ 600 MHz128 Bit @ 1800 MHz
Radeon HD 7650M (compare) 480 @ 450 - 550 (Boost) MHz128 Bit @ 1800 MHz
Radeon HD 7630M (compare) 480 @ 450 MHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7610M Dual Graphics (compare) 656 @ 655 / 450 MHz128 Bit @ 1800 MHz
Radeon HD 7610M (compare) 400 @ 450 MHz128 Bit @ 1600 MHz
ArchitectureTerascale 3Terascale 2
736 - 862 -
Core655 / 600 MHz685 / 600 MHz
Memory1800 MHz1800 MHz
Bus128 Bit128 Bit
yesno
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology32/40 nm40 / 32 nm
Size
Introduced15.05.2012 15.05.2012
MemoryDDR3,GDDR5

3DMark - Cloud Gate Standard Score 1280x720
min: 3566     avg: 3709     median: 3566 (6%)     max: 3995 Points
4202 Points (7%)
3DMark - Cloud Gate Standard Graphics 1280x720
min: 5715     avg: 6137.7     median: 5715 (3%)     max: 6983 Points
6635 Points (4%)
3DMark - Fire Strike Score 1920x1080
min: 529     avg: 570.7     median: 529 (2%)     max: 654 Points
719 Points (3%)
3DMark - Fire Strike Graphics 1920x1080
min: 623     avg: 666.3     median: 623 (2%)     max: 753 Points
875 Points (2%)
3DMark - Ice Storm Standard Graphics 1280x720
min: 37273     avg: 48281.7     median: 53786 (7%)     max: 53786 Points
61913 Points (8%)
3DMark 11 - Performance 1280x720
min: 1585     avg: 1626.3     median: 1628 (5%)     max: 1664 points
min: 1988     avg: 2072.7     median: 2073.5 (7%)     max: 2171 points
3DMark 11 - Performance GPU 1280x720
min: 1629     avg: 1671     median: 1649 (3%)     max: 1757 points
min: 2031     avg: 2118     median: 2112 (4%)     max: 2252 points
3DMark Vantage
P Result 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
P Result 1280x1024 + AMD Radeon HD 7660G + HD 7670M Dual Graphics
P GPU no PhysX 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
P GPU no PhysX 1280x1024 + AMD Radeon HD 7660G + HD 7670M Dual Graphics
3DMark 03 - Standard 1024x768
21584 Points (11%)
min: 21250     avg: 21704.3     median: 21905 (11%)     max: 21958 Points
3DMark 05 - Standard 1024x768
min: 10288     avg: 10402.7     median: 10288 (22%)     max: 10632 Points
min: 11763     avg: 11878     median: 11878 (25%)     max: 11993 Points
3DMark 06 Standard 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Standard 1280x1024 + AMD Radeon HD 7660G + HD 7670M Dual Graphics
Unigine Heaven 3.0 - DX 11, Normal Tessellation, High Shaders 1920x1080
13.9 fps (5%)
Unigine Heaven 3.0 - OpenGL, Normal Tessellation, High Shaders 1920x1080
10.6 fps (6%)
Unigine Heaven 2.1 - high, Tesselation (normal), DirectX11 1280x1024
11.9 fps (5%)
Windows 7 Experience Index - Gaming graphics
min: 6.3     avg: 6.3     median: 6.3 (80%)     max: 6.4 points
Windows 7 Experience Index - Graphics
min: 5.8     avg: 6     median: 5.9 (75%)     max: 6.3 points
Cinebench R10 Shading 32Bit + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Shading 32Bit + AMD Radeon HD 7660G + HD 7670M Dual Graphics
Cinebench R11.5 OpenGL 64Bit + AMD Radeon HD 7640G + HD 7670M Dual Graphics
OpenGL 64Bit + AMD Radeon HD 7660G + HD 7670M Dual Graphics
LuxMark v2.0 64Bit - Room GPUs-only
145 Samples/s (3%)
LuxMark v2.0 64Bit - Sala GPUs-only
342 Samples/s (3%)
ComputeMark v2.1 - Normal, Score 1024x600
772 Points (3%)

Average Benchmarks AMD Radeon HD 7640G + HD 7670M Dual Graphics → 100%

Average Benchmarks AMD Radeon HD 7660G + HD 7670M Dual Graphics → 117%

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

Crysis 3

Crysis 3

2013
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
28.7  fps
109%
Radeon HD 7660G + HD 7670M Dual Graphics:
31.4  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
15  fps
126%
Radeon HD 7660G + HD 7670M Dual Graphics:
18.9  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
10.5  fps
119%
Radeon HD 7660G + HD 7670M Dual Graphics:
12.5  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
99.2  fps
107%
Radeon HD 7660G + HD 7670M Dual Graphics:
106  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
45.9  fps
106%
Radeon HD 7660G + HD 7670M Dual Graphics:
48.6  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
35.9  fps
105%
Radeon HD 7660G + HD 7670M Dual Graphics:
37.8  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
19.9  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
18.7  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
13.4  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Fifa 13

Fifa 13

2012
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
130.8 133 ~ 132 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
100.9 108 ~ 104 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
99.4 103 ~ 101 fps
ultra 1920x1080
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
65 71 ~ 68 fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
F1 2012

F1 2012

2012
low 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
32  fps
med. 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
26  fps
high 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
24  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
15  fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
Torchlight 2

Torchlight 2

2012
low 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
65  fps
med. 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
47.1  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
35.5  fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
42  fps
med. 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
29  fps
high 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
15  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
5  fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
34.2 37.4 ~ 36 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
26.7  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.5  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
78.5 96 98 ~ 91 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
74 74 ~ 74 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
65.4 70 ~ 68 fps
ultra 1920x1080
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
43.3 48 ~ 46 fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
low 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
30  fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
Anno 2070

Anno 2070

2011
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
69 74.9 90 ~ 78 fps
105%
Radeon HD 7660G + HD 7670M Dual Graphics:
75.6 78 92.4 ~ 82 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
28 31.8 ~ 30 fps
137%
Radeon HD 7660G + HD 7670M Dual Graphics:
33.4 48.5 ~ 41 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
19 20.6 ~ 20 fps
135%
Radeon HD 7660G + HD 7670M Dual Graphics:
22 32.5 ~ 27 fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
10.3  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1280x720
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
35.1  fps
108%
Radeon HD 7660G + HD 7670M Dual Graphics:
33 37 43.2 ~ 38 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
30.8  fps
94%
Radeon HD 7660G + HD 7670M Dual Graphics:
27 28.2 33.2 ~ 29 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.1  fps
84%
Radeon HD 7660G + HD 7670M Dual Graphics:
19 21 22.9 ~ 21 fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
10 10.1 12 ~ 11 fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
92  fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
34.9 37.4 37.6 ~ 37 fps
med. 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
28.9 31.2 33.6 ~ 31 fps
high 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
24.8 26.8 30.5 ~ 27 fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
10.1 10.8 ~ 10 fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
F1 2011

F1 2011

2011
low 800x600
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
59  fps
81%
Radeon HD 7660G + HD 7670M Dual Graphics:
45 50 ~ 48 fps
med. 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
37  fps
92%
Radeon HD 7660G + HD 7670M Dual Graphics:
32 35 ~ 34 fps
high 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
28  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
16  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
95.5  fps
110%
Radeon HD 7660G + HD 7670M Dual Graphics:
105.3  fps
high 1366x768
Radeon HD 7660G + HD 7670M Dual Graphics:
56.2  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
25.4  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7660G + HD 7670M Dual Graphics:
»
Dirt 3

Dirt 3

2011
low 800x600
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
70.3  fps
118%
Radeon HD 7660G + HD 7670M Dual Graphics:
83  fps
med. 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
41.3  fps
116%
Radeon HD 7660G + HD 7670M Dual Graphics:
48  fps
high 1360x768
Radeon HD 7660G + HD 7670M Dual Graphics:
44  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
22  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7660G + HD 7670M Dual Graphics:
»
Mafia 2

Mafia 2

2010
low 800x600
Radeon HD 7660G + HD 7670M Dual Graphics:
46 46.6 ~ 46 fps
med. 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
41 41.7 ~ 41 fps
high 1360x768
Radeon HD 7660G + HD 7670M Dual Graphics:
36.5 37 ~ 37 fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
23.9 24 ~ 24 fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
low 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
121.8  fps
med. 1360x768
Radeon HD 7660G + HD 7670M Dual Graphics:
48.7  fps
high 1360x768
Radeon HD 7660G + HD 7670M Dual Graphics:
31.6  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
18.3  fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»
Trackmania Nations Forever

Trackmania Nations Forever

2008
low 640x480
Radeon HD 7660G + HD 7670M Dual Graphics:
156  fps
high 1024x768
Radeon HD 7660G + HD 7670M Dual Graphics:
46.5  fps
ultra 1920x1080
Radeon HD 7660G + HD 7670M Dual Graphics:
22.8  fps
Radeon HD 7660G + HD 7670M Dual Graphics:
»

Average Gaming AMD Radeon HD 7640G + HD 7670M Dual Graphics → 100%

Average Gaming AMD Radeon HD 7660G + HD 7670M Dual Graphics → 109%

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