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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 from comparison 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 from comparison 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
AMD Radeon HD 7400M Series
Radeon HD 6620G + HD 7670M Dual Graphics 880 @ 0.4 GHz? Bit @ 1800 MHz
Radeon HD 6620G + HD 7450M Dual Graphics 560 @ 0.4 GHz? Bit @ 1800 MHz
Radeon HD 6520G + HD 7450M Dual Graphics compare 480 @ 0.4 GHz64 Bit @ 1800 MHz
Radeon HD 6480G + HD 7450M Dual Graphics compare 400 @ 0.59 GHz64 Bit @ - / 1800 MHz
Radeon HD 6620G + HD 7670M Dual Graphics 880 @ 0.4 GHz? Bit @ 1800 MHz
Radeon HD 6620G + HD 7450M Dual Graphics 560 @ 0.4 GHz? Bit @ 1800 MHz
Radeon HD 6520G + HD 7450M Dual Graphics compare 480 @ 0.4 GHz64 Bit @ 1800 MHz
Radeon HD 6480G + HD 7450M Dual Graphics compare 400 @ 0.59 GHz64 Bit @ - / 1800 MHz
ArchitectureTerascale 2Terascale 2
Pipelines880 - unified560 - unified
Core Speed400 / 600 MHz400 / 700 MHz
Memory Speed1800 MHz1800 MHz
Shared Memoryyesyes
APIDirectX 11, Shader 5.0DirectX 11, Shader 5.0
technology32+40nm nm32+40nm nm
Date of Announcement08.02.2012 08.02.2012

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy - Radeon HD 6620G + HD 7670M Dual Graphics
3.6 pt (4%)
3DMark - 3DMark Cloud Gate Score
4680 Points (5%)
3DMark - 3DMark Cloud Gate Graphics
9719 Points (3%)
3DMark - 3DMark Fire Strike Standard Score
603 Points (1%)
3DMark - 3DMark Fire Strike Standard Graphics
777 Points (1%)
3DMark - 3DMark Ice Storm Graphics
57082 Points (7%)
3DMark 11 - 3DM11 Performance Score
1604 Points (2%)
3DMark 11 - 3DM11 Performance GPU
1600 Points (1%)
3DMark Vantage
3DM Vant. Perf. total + AMD Radeon HD 6620G + HD 7670M Dual Graphics
3DMark Vantage - 3DM Vant. Perf. total
5400 Points (2%)
3DM Vant. Perf. GPU no PhysX + AMD Radeon HD 6620G + HD 7670M Dual Graphics
3DMark Vantage - 3DM Vant. Perf. GPU no PhysX
5324 Points (3%)
3DMark 06 3DMark 06 - Standard 1280x1024 + AMD Radeon HD 6620G + HD 7670M Dual Graphics
3DMark 06
7083 Points (10%)
Windows 7 Experience Index - Win7 Gaming graphics
5.9 Points (75%)
Windows 7 Experience Index - Win7 Graphics
4.3 Points (54%)
Cinebench R10 Cinebench R10 Shading (32bit) + AMD Radeon HD 6620G + HD 7670M Dual Graphics
Cinebench R10 - Cinebench R10 Shading (32bit)
3728 Points (3%)
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit + AMD Radeon HD 6620G + HD 7670M Dual Graphics
Cinebench R11.5 - Cinebench R11.5 OpenGL 64 Bit
23.7 fps (9%)
LuxMark v2.0 64Bit - LuxMark v2.0 Room GPU
148 Samples/s (1%)
LuxMark v2.0 64Bit - LuxMark v2.0 Sala GPU
309 Samples/s (1%)
ComputeMark v2.1 - ComputeMark v2.1 Result
748 Points (1%)

Average Benchmarks AMD Radeon HD 6620G + HD 7670M Dual Graphics → NAN% n=

- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance
1 This benchmark is not used for the average calculation

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 detailed information on the benchmark results, click on the fps number.

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
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
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
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
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
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
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
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
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

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

Average Gaming 30-70 fps → 100%

For more games that might be playable and a list of all games and graphics cards visit our Gaming List

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