AMD Radeon HD 6620G + HD 7670M Dual Graphics vs AMD Radeon HD 6620G + HD 7450M Dual Graphics

AMD Radeon HD 6620G + HD 7670M Dual Graphics

► remove AMD Radeon HD 6620G + HD 7670M Dual Graphics

The AMD Radeon HD 6620G + HD 7670M Dual Graphics is the combination of a integrated AMD Radeon HD 6620G APU processor graphics card and a dedicated 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 greatly depends 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. Due to the micro stuttering and performance problems, Dual Graphics may impose more problems than bring performance gains. Therefore, we rate the performance on average on a level with the Radeon HD 7670M alone.

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 6620G + HD 7450M Dual Graphics

► remove AMD Radeon HD 6620G + HD 7450M Dual Graphics

The AMD Radeon HD 6620G + HD 7450M Dual Graphics is the combination of a integrated AMD Radeon HD 6620G APU processor graphics card and a dedicated entry level AMD Radeon HD 7450M 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. 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 6620G + HD 7670M Dual GraphicsAMD Radeon HD 6620G + HD 7450M Dual Graphics
ManufacturerAMDAMD
AMD Radeon HD 7400M Series
Radeon HD 6620G + HD 7670M Dual Graphics 880 @ 400 / 600 MHz? Bit @ 1800 MHz
Radeon HD 6620G + HD 7450M Dual Graphics 560 @ 400 / 700 MHz? Bit @ 1800 MHz
Radeon HD 6520G + HD 7450M Dual Graphics (compare) 480 @ 400 / 700 MHz64 Bit @ 1800 MHz
Radeon HD 6480G + HD 7450M Dual Graphics (compare) 400 @ 593 / 700 MHz64 Bit @ - / 1800 MHz
Radeon HD 6620G + HD 7670M Dual Graphics 880 @ 400 / 600 MHz? Bit @ 1800 MHz
Radeon HD 6620G + HD 7450M Dual Graphics 560 @ 400 / 700 MHz? Bit @ 1800 MHz
Radeon HD 6520G + HD 7450M Dual Graphics (compare) 480 @ 400 / 700 MHz64 Bit @ 1800 MHz
Radeon HD 6480G + HD 7450M Dual Graphics (compare) 400 @ 593 / 700 MHz64 Bit @ - / 1800 MHz
ArchitectureTerascale 2Terascale 2
880 - 560 -
Core400 / 600 MHz400 / 700 MHz
Memory1800 MHz1800 MHz
yesyes
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology32+40nm nm32+40nm nm
Introduced08.02.2012 08.02.2012

3DMark - Cloud Gate Standard Score 1280x720
4680 Points (8%)
3DMark - Cloud Gate Standard Graphics 1280x720
9719 Points (5%)
3DMark - Fire Strike Score 1920x1080
603 Points (2%)
3DMark - Fire Strike Graphics 1920x1080
777 Points (2%)
3DMark - Ice Storm Standard Graphics 1280x720
57082 Points (8%)
3DMark 11 - Performance 1280x720
1604 points (5%)
3DMark 11 - Performance GPU 1280x720
1600 points (3%)
3DMark Vantage
P Result 1280x1024 + AMD Radeon HD 6620G + HD 7670M Dual Graphics
P GPU no PhysX 1280x1024 + AMD Radeon HD 6620G + HD 7670M Dual Graphics
3DMark 06 Standard 1280x1024 + AMD Radeon HD 6620G + HD 7670M Dual Graphics
Windows 7 Experience Index - Gaming graphics
5.9 points (84%)
Windows 7 Experience Index - Graphics
4.3 points (61%)
Cinebench R10 Shading 32Bit + AMD Radeon HD 6620G + HD 7670M Dual Graphics
Cinebench R11.5 OpenGL 64Bit + AMD Radeon HD 6620G + HD 7670M Dual Graphics
LuxMark v2.0 64Bit - Room GPUs-only
148 Samples/s (3%)
LuxMark v2.0 64Bit - Sala GPUs-only
309 Samples/s (3%)
ComputeMark v2.1 - Normal, Score 1024x600
748 Points (3%)

Average Benchmarks AMD Radeon HD 6620G + HD 7670M Dual Graphics → 100%

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

low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
96.1  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
43.4  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
34.9  fps
ultra 1920x1080
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
16  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
89  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
50.4  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
30.6  fps
ultra 1920x1080
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
12.8  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
92.5  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
45.2  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
35.3  fps
ultra 1920x1080
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
20.9  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
19.6  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
17.6  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
12.7  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
Fifa 13

Fifa 13

2012
low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
120.5  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
90.5  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
88.9  fps
ultra 1920x1080
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
54.2  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
F1 2012

F1 2012

2012
low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
35  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
29  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
27  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
41  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
30.5  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
29.6  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
Anno 2070

Anno 2070

2011
low 1024x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
103.8  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
41  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
27.4  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»
low 1280x720
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
40.2  fps
med. 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
32.9  fps
high 1366x768
100%
Radeon HD 6620G + HD 7670M Dual Graphics:
23  fps
Radeon HD 6620G + HD 7670M Dual Graphics:
»

Average Gaming AMD Radeon HD 6620G + HD 7670M Dual Graphics → 100%

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