Notebookcheck

AMD Radeon HD 7640G + HD 7670M Dual Graphics

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.

ManufacturerAMD
Radeon HD 7600M Series
Radeon HD 7690M XT compare 480 @ 725 MHz128 Bit @ 3600 MHz
Radeon HD 7690M compare 480 @ 600 - 725 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 compare 480 @ 450 - 550 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 3
Pipelines736 - unified
Core Speed655 / 600 MHz
Memory Speed1800 MHz
Memory Bus Width128 Bit
Shared Memoryyes
DirectXDirectX 11, Shader 5.0
technology32/40 nm
Notebook Sizemedium sized
Date of Announcement15.05.2012

Benchmarks

Performance Rating - 3DMark 11 + Fire Strike + Time Spy
5.5 pt (6%)
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
3DMark Vantage
3DM Vant. Perf. total +
3DM Vant. Perf. GPU no PhysX +
3DMark 06 3DMark 06 - Standard 1280x1024 +
Cinebench R10 Cinebench R10 Shading (32bit) +
Cinebench R11.5 Cinebench R11.5 OpenGL 64 Bit +
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card
* Smaller numbers mean a higher performance

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.

Crysis 3

Crysis 3

2013
low 1024x768
28.7  fps    + Compare
med. 1366x768
15  fps    + Compare
high 1366x768
10.5  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
low 1024x768
99.2  fps    + Compare
med. 1366x768
45.9  fps    + Compare
high 1366x768
35.9  fps    + Compare
» With all tested laptops playable in detail settings high.
low 1024x768
19.9  fps    + Compare
med. 1366x768
18.7  fps    + Compare
high 1366x768
13.4  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.
Fifa 13

Fifa 13

2012
low 1024x768
130.8 133 ~ 132 fps    + Compare
med. 1366x768
100.9 108 ~ 104 fps    + Compare
high 1366x768
99.4 103 ~ 101 fps    + Compare
ultra 1920x1080
65 71 ~ 68 fps    + Compare
» With all tested laptops playable in detail settings ultra.
low 1024x768
34.2 37.4 ~ 36 fps    + Compare
med. 1366x768
26.7  fps    + Compare
high 1366x768
25.5  fps    + Compare
» With most tested laptops playable in detail settings low.
low 1024x768
78.5 96 98 ~ 91 fps    + Compare
med. 1366x768
74 74 ~ 74 fps    + Compare
high 1366x768
65.4 70 ~ 68 fps    + Compare
ultra 1920x1080
43.3 48 ~ 46 fps    + Compare
» With all tested laptops playable in detail settings ultra.
Anno 2070

Anno 2070

2011
low 1024x768
69 74.9 90 ~ 78 fps    + Compare
med. 1366x768
28 31.8 ~ 30 fps    + Compare
high 1366x768
19 20.6 ~ 20 fps    + Compare
» With all tested laptops playable in detail settings low.
low 1280x720
35.1  fps    + Compare
med. 1366x768
30.8  fps    + Compare
high 1366x768
25.1  fps    + Compare
» With all tested laptops playable in detail settings low.
F1 2011

F1 2011

2011
low 800x600
59  fps    + Compare
med. 1024x768
37  fps    + Compare
» With all tested laptops playable in detail settings med..
Dirt 3

Dirt 3

2011
low 800x600
70.3  fps    + Compare
med. 1024x768
41.3  fps    + Compare
» With all tested laptops playable in detail settings med..

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

Add one or more devices and compare

In the following list you can select (and also search for) devices that should be added to the comparison. You can select more than one device.

restrict list:

show all (including archived), 2020, 2019
v1.15

Notebook reviews with AMD Radeon HD 7640G + HD 7670M Dual Graphics graphics card

Asus K75DE-TY068H: AMD A8-4500M, 17.3", 3.1 kg
  Review » Review Asus K75DE Notebook

Samsung Serie 3 355E7C-S05DE: AMD A8-4500M, 17.3", 2.8 kg
  Review » Review Samsung Series 3 355E7C-S05DE Notebook

» Comparison of GPUs
Detailed list of all laptop GPUs sorted by class and performance.

» Benchmark List
Sort and restrict laptop GPUs based on performance in synthetic benchmarks.

» Notebook Gaming List
Playable games for each graphics card and their average FPS results.

Class 1