AMD Radeon HD 7640G + HD 7670M Dual Graphics vs AMD Radeon HD 7650M

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 7650M

► remove AMD Radeon HD 7650M

The AMD Radeon HD 7650M (sometimes also called AMD Mobility Radeon HD 7650) is a DirectX11 middle class graphics card for laptops. It is based on the same chip as the Radeon HD 6650M, but has a lower core clock of 450 - 550 MHz. The memory interface is 128 bit wide, but only supports DDR3. The architecture is based on the Northern Islands generation, manufactured in 40nm.

The 480 stream processors should be still based on the "old" 5D architecture similar to the 5000 series. Therefore, the number of shaders is not comparable to the 1D cores of current Nvidia GPUs. The tessellation performance should be improved (like the desktop 6800 series) with the new cards. The stream processors can be used with DirectX 11, OpenGL 4.1, DirectCompute 11 and OpenCL. With the later two the cores can also be used for general computations like transcoding videos.

The 3D performance is similar to the Radeon HD 6630M, depending on the core clock (mostly 500 MHz). Therefore, current games run (more or less) fluently in 1366x768 and medium details. Playing highly demanding games like Anno 2070, a further reduction of the settings could be necessary.

The new UVD3 video decoder supports the decoding of MPEG-4 AVC/H.264, VC-1, MPEG-2, Flash and now also Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD videos on the graphics card.

Furthermore, the HD 7600M series integrates a HD audio controller to transmit HD audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g. for Blu-Ray videos).

The AMD HD3D Technology offers support for Blu-Ray 3D and 3D displays (integrated and external). However, the solution is not as mature as Nvidias 3D Vision.

Thanks to Eyefinity the graphics chip is able to theoretically drive up to 5 monitors simultaneously. However, this only works if the laptop features enough DisplayPort outputs.

The power consumption of the chip is similar to the Radeon HD 6630M and therefore suited for 15" laptops and up.

AMD Radeon HD 7640G + HD 7670M Dual GraphicsAMD Radeon HD 7650M
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 (compare) 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 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 (compare) 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 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 - 480 -
Core655 / 600 MHz450 - 550 (Boost) MHz
Memory1800 MHz1800 MHz
Bus128 Bit128 Bit
yesno
DirectXDirectX 11, 5.0DirectX 11, 5.0
Technology32/40 nm40 nm
Size
Introduced15.05.2012 07.01.2012
CodenameThames-LP/Pro
MemoryDDR3

3DMark - Cloud Gate Standard Score 1280x720
min: 3566     avg: 3709     median: 3566 (6%)     max: 3995 Points
3DMark - Cloud Gate Standard Graphics 1280x720
min: 5715     avg: 6137.7     median: 5715 (3%)     max: 6983 Points
3DMark - Fire Strike Score 1920x1080
min: 529     avg: 570.7     median: 529 (2%)     max: 654 Points
3DMark - Fire Strike Graphics 1920x1080
min: 623     avg: 666.3     median: 623 (2%)     max: 753 Points
3DMark - Ice Storm Standard Graphics 1280x720
min: 37273     avg: 48281.7     median: 53786 (7%)     max: 53786 Points
3DMark 11 - Performance 1280x720
min: 1585     avg: 1626.3     median: 1628 (5%)     max: 1664 points
min: 1031     avg: 1055.5     median: 1058.5 (3%)     max: 1070 points
3DMark 11 - Performance GPU 1280x720
min: 1629     avg: 1671     median: 1649 (3%)     max: 1757 points
min: 909     avg: 943.5     median: 945.5 (2%)     max: 972 points
3DMark Vantage
P Result 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
P Result 1280x1024 + AMD Radeon HD 7650M
P GPU no PhysX 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
P GPU no PhysX 1280x1024 + AMD Radeon HD 7650M
3DMark 03 - Standard 1024x768
21584 Points (11%)
21974 Points (11%)
3DMark 05 - Standard 1024x768
min: 10288     avg: 10402.7     median: 10288 (22%)     max: 10632 Points
min: 14106     avg: 14210.5     median: 14210.5 (30%)     max: 14315 Points
3DMark 06 Standard 1280x1024 + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Standard 1280x1024 + AMD Radeon HD 7650M
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
min: 11.1     avg: 11.4     median: 11.4 (5%)     max: 11.7 fps
SPECviewperf 11
Siemens NX 1920x1080 + AMD Radeon HD 7650M
Tcvis 1920x1080 + AMD Radeon HD 7650M
SolidWorks 1920x1080 + AMD Radeon HD 7650M
Pro/ENGINEER 1920x1080 + AMD Radeon HD 7650M
Maya 1920x1080 + AMD Radeon HD 7650M
Lightwave 1920x1080 + AMD Radeon HD 7650M
Ensight 1920x1080 + AMD Radeon HD 7650M
Catia 1920x1080 + AMD Radeon HD 7650M
Windows 7 Experience Index - Gaming graphics
min: 6.5     avg: 6.6     median: 6.7 (85%)     max: 6.7 points
Windows 7 Experience Index - Graphics
min: 5.3     avg: 6.2     median: 6.7 (85%)     max: 6.7 points
Cinebench R10 Shading 32Bit + AMD Radeon HD 7640G + HD 7670M Dual Graphics
Shading 32Bit + AMD Radeon HD 7650M
Cinebench R11.5 OpenGL 64Bit + AMD Radeon HD 7640G + HD 7670M Dual Graphics
OpenGL 64Bit + AMD Radeon HD 7650M
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 7650M → 100%

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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
Radeon HD 7640G + HD 7670M Dual Graphics:
»
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
Radeon HD 7640G + 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:
»
low 1024x768
Radeon HD 7650M:
39.6  fps
med. 1366x768
Radeon HD 7650M:
29.5  fps
high 1366x768
Radeon HD 7650M:
16.1  fps
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
38.2  fps
med. 1366x768
Radeon HD 7650M:
24.6  fps
high 1366x768
Radeon HD 7650M:
18.9  fps
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
51.9  fps
med. 1366x768
Radeon HD 7650M:
41.1  fps
high 1366x768
Radeon HD 7650M:
36.8  fps
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
79.3  fps
med. 1366x768
Radeon HD 7650M:
34.7  fps
high 1366x768
Radeon HD 7650M:
24.9  fps
ultra 1920x1080
Radeon HD 7650M:
14.8  fps
Radeon HD 7650M:
»
Fifa 13

Fifa 13

2012
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
130.8 133 ~ 132 fps
143%
Radeon HD 7650M:
188.8  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
100.9 108 ~ 104 fps
122%
Radeon HD 7650M:
126.5  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
99.4 103 ~ 101 fps
96%
Radeon HD 7650M:
96.9  fps
ultra 1920x1080
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
65 71 ~ 68 fps
85%
Radeon HD 7650M:
57.6  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7650M:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
34.2 37.4 ~ 36 fps
163%
Radeon HD 7650M:
58.8  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
26.7  fps
142%
Radeon HD 7650M:
38  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.5  fps
129%
Radeon HD 7650M:
32.9  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7650M:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
78.5 96 98 ~ 91 fps
84%
Radeon HD 7650M:
76.3  fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
74 74 ~ 74 fps
69%
Radeon HD 7650M:
51.1  fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
65.4 70 ~ 68 fps
64%
Radeon HD 7650M:
43.2  fps
ultra 1920x1080
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
43.3 48 ~ 46 fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
37.3  fps
med. 1366x768
Radeon HD 7650M:
23.2  fps
high 1366x768
Radeon HD 7650M:
17.2  fps
ultra 1920x1080
Radeon HD 7650M:
8.7  fps
Radeon HD 7650M:
»
low 1280x720
Radeon HD 7650M:
44.2  fps
high 1366x768
Radeon HD 7650M:
32.5  fps
ultra 1920x1080
Radeon HD 7650M:
19.4  fps
Radeon HD 7650M:
»
Anno 2070

Anno 2070

2011
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
69 74.9 90 ~ 78 fps
96%
Radeon HD 7650M:
66.3 74.3 84.4 ~ 75 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
28 31.8 ~ 30 fps
107%
Radeon HD 7650M:
30.7 31.4 32.5 33.8 ~ 32 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
19 20.6 ~ 20 fps
110%
Radeon HD 7650M:
19.9 21 21.3 24.4 ~ 22 fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7650M:
»
low 1280x720
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
35.1  fps
131%
Radeon HD 7650M:
45 45.9 46.2 ~ 46 fps
med. 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
30.8  fps
104%
Radeon HD 7650M:
31.4 32 32.3 ~ 32 fps
high 1366x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
25.1  fps
84%
Radeon HD 7650M:
21 21.4 21.7 ~ 21 fps
ultra 1920x1080
Radeon HD 7650M:
11 11.3 ~ 11 fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
151  fps
med. 1366x768
Radeon HD 7650M:
76  fps
high 1366x768
Radeon HD 7650M:
40  fps
ultra 1920x1080
Radeon HD 7650M:
22  fps
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
31.7 35.6 39.7 39.8 ~ 37 fps
med. 1366x768
Radeon HD 7650M:
23.6 23.8 24 26 ~ 24 fps
high 1366x768
Radeon HD 7650M:
17.8 18.4 19.3 20.5 ~ 19 fps
ultra 1920x1080
Radeon HD 7650M:
6.4 6.8 ~ 7 fps
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
45.6  fps
med. 1366x768
Radeon HD 7650M:
34.9  fps
high 1366x768
Radeon HD 7650M:
26.2  fps
Radeon HD 7650M:
»
Fifa 12

Fifa 12

2011
low 800x600
Radeon HD 7650M:
96.9  fps
med. 1024x768
Radeon HD 7650M:
63.9 110 ~ 87 fps
high 1360x768
Radeon HD 7650M:
46.8 56.2 ~ 52 fps
Radeon HD 7650M:
»
F1 2011

F1 2011

2011
low 800x600
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
59  fps
med. 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
37  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
low 1024x768
100%
Radeon HD 7640G + HD 7670M Dual Graphics:
95.5  fps
107%
Radeon HD 7650M:
100.1 103 ~ 102 fps
high 1366x768
Radeon HD 7650M:
32.6 34.6 ~ 34 fps
ultra 1920x1080
Radeon HD 7650M:
14.8  fps
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Radeon HD 7650M:
»
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
Radeon HD 7640G + HD 7670M Dual Graphics:
»
Total War: Shogun 2

Total War: Shogun 2

2011
low 1024x768
Radeon HD 7650M:
105.4  fps
med. 1280x720
Radeon HD 7650M:
31.2  fps
Radeon HD 7650M:
»
low 1024x768
Radeon HD 7650M:
229  fps
med. 1360x768
Radeon HD 7650M:
46.2  fps
high 1360x768
Radeon HD 7650M:
29.9  fps
ultra 1920x1080
Radeon HD 7650M:
17.1  fps
Radeon HD 7650M:
»
low 800x600
Radeon HD 7650M:
52.3 78.3 ~ 65 fps
med. 1360x768
Radeon HD 7650M:
43.9  fps
high 1600x900
Radeon HD 7650M:
17.9  fps
Radeon HD 7650M:
»
Risen

Risen

2009
med. 1024x768
Radeon HD 7650M:
32.8  fps
high 1366x768
Radeon HD 7650M:
21.8  fps
Radeon HD 7650M:
»
Need for Speed Shift

Need for Speed Shift

2009
med. 1024x768
Radeon HD 7650M:
32.1  fps
high 1366x768
Radeon HD 7650M:
28.7  fps
Radeon HD 7650M:
»
Colin McRae: DIRT 2

Colin McRae: DIRT 2

2009
low 800x600
Radeon HD 7650M:
88.1  fps
med. 1024x768
Radeon HD 7650M:
64.3  fps
high 1360x768
Radeon HD 7650M:
26.9  fps
Radeon HD 7650M:
»

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

Average Gaming AMD Radeon HD 7650M → 108%

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