AMD Radeon HD 7640G + HD 7670M Dual Graphics vs AMD Radeon HD 7520G + HD 7670M Dual Graphics

AMD Radeon HD 7640G + HD 7670M Dual Graphics

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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 7520G + HD 7670M Dual Graphics

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The AMD Radeon HD 7520G + HD 7670M Dual Graphics is the combination of a integrated AMD Radeon HD 7520G 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 almost matches a 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 7640G + HD 7670M Dual GraphicsAMD Radeon HD 7520G + HD 7670M Dual Graphics
ManufacturerAMDAMD
Radeon HD 7600M Series
Radeon HD 7690M XT compare 480 @ 0.73 GHz128 Bit @ 3600 MHz
Radeon HD 7690M compare 480 @ 0.6 - 0.73 GHz128 Bit @ 3600/1800 MHz
Radeon HD 7660G + HD 7670M Dual Graphics compare 862 @ 0.69 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7670M Dual Graphics 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7520G + HD 7670M Dual Graphics 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7670M compare 480 @ 0.6 GHz128 Bit @ 1800 MHz
Radeon HD 7650M compare 480 @ 0.45 - 0.55 GHz128 Bit @ 1800 MHz
Radeon HD 7630M compare 480 @ 0.45 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7610M Dual Graphics compare 656 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7610M compare 400 @ 0.45 GHz128 Bit @ 1600 MHz
Radeon HD 7690M XT compare 480 @ 0.73 GHz128 Bit @ 3600 MHz
Radeon HD 7690M compare 480 @ 0.6 - 0.73 GHz128 Bit @ 3600/1800 MHz
Radeon HD 7660G + HD 7670M Dual Graphics compare 862 @ 0.69 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7670M Dual Graphics 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7520G + HD 7670M Dual Graphics 736 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7670M compare 480 @ 0.6 GHz128 Bit @ 1800 MHz
Radeon HD 7650M compare 480 @ 0.45 - 0.55 GHz128 Bit @ 1800 MHz
Radeon HD 7630M compare 480 @ 0.45 GHz128 Bit @ 1800 MHz
Radeon HD 7640G + HD 7610M Dual Graphics compare 656 @ 0.66 GHz128 Bit @ 1800 MHz
Radeon HD 7610M compare 400 @ 0.45 GHz128 Bit @ 1600 MHz
ArchitectureTerascale 3Terascale 3
Cores736 - unified736 - unified
Core655 / 600 MHz655 / 600 MHz
Memory1800 MHz1800 MHz
Bus128 Bit128 Bit
Shared Memoryyesyes
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology32/40 nm32/40 nm
Size1/31/3
Introduced15.05.2012 15.05.2012

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
5.2 pt (6%)
3DMark - 3DMark Cloud Gate Score
min: 3566     avg: 3709     median: 3566 (5%)     max: 3995 Points
3DMark - 3DMark Cloud Gate Graphics
min: 5715     avg: 6138     median: 5715 (3%)     max: 6983 Points
3DMark - 3DMark Fire Strike Standard Score
min: 529     avg: 571     median: 529 (2%)     max: 654 Points
3DMark - 3DMark Fire Strike Standard Graphics
min: 623     avg: 666     median: 623 (1%)     max: 753 Points
3DMark - 3DMark Ice Storm Graphics
min: 37273     avg: 48282     median: 53786 (7%)     max: 53786 Points
3DMark 11 - 3DM11 Performance Score
min: 1585     avg: 1626     median: 1628 (4%)     max: 1664 Points
min: 1458     avg: 1480     median: 1480 (4%)     max: 1502 Points
3DMark 11 - 3DM11 Performance GPU
min: 1629     avg: 1671     median: 1649 (3%)     max: 1757 Points
min: 1597     avg: 1621     median: 1621 (3%)     max: 1645 Points
3DMark Vantage
3DM Vant. Perf. total + AMD Radeon HD 7640G + HD 7670M Dual Graphics
3DM Vant. Perf. total + AMD Radeon HD 7520G + HD 7670M Dual Graphics
3DM Vant. Perf. GPU no PhysX + AMD Radeon HD 7640G + HD 7670M Dual Graphics
3DM Vant. Perf. GPU no PhysX + AMD Radeon HD 7520G + HD 7670M Dual Graphics
3DMark 03 - 3DMark 03 - Standard
21584 Points (11%)
21697 Points (11%)
3DMark 05 - 3DMark 05 - Standard
min: 10288     avg: 10403     median: 10288 (15%)     max: 10632 Points
11853 Points (17%)
3DMark 06 3DMark 06 - Standard 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
3DMark 06 - Standard 1280x1024 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
Unigine Heaven 3.0 - Unigine Heaven 3.0 DX 11
13.9 fps (5%)
Unigine Heaven 3.0 - Unigine Heaven 3.0 OpenGL
10.6 fps (5%)
Unigine Heaven 2.1 - Heaven 2.1 high
20.4 fps (4%)
SPECviewperf 11
specvp11 snx-01 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
specvp11 tcvis-02 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
specvp11 sw-02 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
specvp11 proe-05 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
specvp11 maya-03 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
specvp11 lightwave-01 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
specvp11 ensight-04 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
specvp11 catia-03 + AMD Radeon HD 7520G + HD 7670M Dual Graphics
Windows 7 Experience Index - Win7 Gaming graphics
6.3 Points (80%)
Windows 7 Experience Index - Win7 Graphics
5.9 Points (75%)
Cinebench R10 Cinebench R10 Shading (32bit) + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Cinebench R10 Shading (32bit) + AMD Radeon HD 7520G + HD 7670M Dual Graphics
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Cinebench R11.5 OpenGL 64 Bit + AMD Radeon HD 7520G + HD 7670M Dual Graphics
LuxMark v2.0 64Bit - LuxMark v2.0 Room GPU
145 Samples/s (1%)
LuxMark v2.0 64Bit - LuxMark v2.0 Sala GPU
342 Samples/s (2%)
ComputeMark v2.1 - ComputeMark v2.1 Result
772 (2%)

Average Benchmarks AMD Radeon HD 7640G + HD 7670M Dual Graphics → 100% n=9

Average Benchmarks AMD Radeon HD 7520G + HD 7670M Dual Graphics → 94% n=9

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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
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
15  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
10.5  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
99.2  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
45.9  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
35.9  fps
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
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
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
20.6  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
11.1  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
6.6  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
70.6  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
57.1  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
50.8  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
43.9  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
41.9  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
24  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
31.6  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
22.6  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
18  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
7.2  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
25.4  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
19.6  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
8  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
16.4  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
15.2  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
10.8  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
8.2  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
34.2 37.4 ~ 36 fps
82%
Radeon HD 7520G + HD 7670M Dual Graphics:
29.6  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
26.7  fps
70%
Radeon HD 7520G + HD 7670M Dual Graphics:
18.7  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.5  fps
64%
Radeon HD 7520G + HD 7670M Dual Graphics:
16.4  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
9.3  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
78.5 96 98 ~ 91 fps
89%
Radeon HD 7520G + HD 7670M Dual Graphics:
80.8  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
74 74 ~ 74 fps
74%
Radeon HD 7520G + HD 7670M Dual Graphics:
54.6  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
65.4 70 ~ 68 fps
68%
Radeon HD 7520G + HD 7670M Dual Graphics:
46.2  fps
ultra 1920x1080
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
43.3 48 ~ 46 fps
66%
Radeon HD 7520G + HD 7670M Dual Graphics:
30.4  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
25.9  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
23.9  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
17.6  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
7.7  fps
low 1280x720
Radeon HD 7520G + HD 7670M Dual Graphics:
48.5  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
36.8  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
23  fps
Alan Wake

Alan Wake

2012
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
29.5  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
19  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
9.4  fps
Anno 2070

Anno 2070

2011
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
69 74.9 90 ~ 78 fps
102%
Radeon HD 7520G + HD 7670M Dual Graphics:
79.6  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
28 31.8 ~ 30 fps
143%
Radeon HD 7520G + HD 7670M Dual Graphics:
39.4 45.9 ~ 43 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
19 20.6 ~ 20 fps
150%
Radeon HD 7520G + HD 7670M Dual Graphics:
25.7 34.9 ~ 30 fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
13.6  fps
low 1280x720
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
35.1  fps
105%
Radeon HD 7520G + HD 7670M Dual Graphics:
36.3 37.9 ~ 37 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
30.8  fps
104%
Radeon HD 7520G + HD 7670M Dual Graphics:
31.7 31.7 ~ 32 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.1  fps
88%
Radeon HD 7520G + HD 7670M Dual Graphics:
22.4 22.5 ~ 22 fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
12  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
88.2  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
61  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
41.4  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
23.5  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
22  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
18.3  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
15.7  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
6.3  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
56  fps
med. 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
48  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
14  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
8  fps
Fifa 12

Fifa 12

2011
low 800x600
Radeon HD 7520G + HD 7670M Dual Graphics:
83.7 105.8 ~ 95 fps
med. 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
60.2 67.5 67.7 ~ 65 fps
high 1360x768
Radeon HD 7520G + HD 7670M Dual Graphics:
47 52.5 54.3 ~ 51 fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
46.4  fps
F1 2011

F1 2011

2011
low 800x600
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
59  fps
75%
Radeon HD 7520G + HD 7670M Dual Graphics:
43 44 ~ 44 fps
med. 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
37  fps
81%
Radeon HD 7520G + HD 7670M Dual Graphics:
30 30 ~ 30 fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
26 26 ~ 26 fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
19  fps
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
95.5  fps
77%
Radeon HD 7520G + HD 7670M Dual Graphics:
72.2 74.9 ~ 74 fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
43.2 45.1 ~ 44 fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
21.1  fps
Dirt 3

Dirt 3

2011
low 800x600
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
70.3  fps
med. 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
41.3  fps
Crysis 2

Crysis 2

2011
low 800x600
Radeon HD 7520G + HD 7670M Dual Graphics:
52.2  fps
med. 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
34.3  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
25.4  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
10.5  fps
low 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
116.8  fps
med. 1360x768
Radeon HD 7520G + HD 7670M Dual Graphics:
46.3  fps
high 1360x768
Radeon HD 7520G + HD 7670M Dual Graphics:
28.6  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
17.6  fps
low 800x600
Radeon HD 7520G + HD 7670M Dual Graphics:
42.1 43.6 ~ 43 fps
med. 1360x768
Radeon HD 7520G + HD 7670M Dual Graphics:
30.2 32.1 ~ 31 fps
high 1600x900
Radeon HD 7520G + HD 7670M Dual Graphics:
22.9  fps
ultra 1920x1080
Radeon HD 7520G + HD 7670M Dual Graphics:
8.3  fps
Need for Speed Shift

Need for Speed Shift

2009
med. 1024x768
Radeon HD 7520G + HD 7670M Dual Graphics:
36  fps
high 1366x768
Radeon HD 7520G + HD 7670M Dual Graphics:
29.9  fps

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

Average Gaming 30-70 fps → 100%

Average Gaming AMD Radeon HD 7520G + HD 7670M Dual Graphics → 90%

Average Gaming 30-70 fps → 91%

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