AMD Radeon HD 8670M

AMD Radeon HD 8670M

The AMD Radeon HD 8670M (sometimes known as the ATI Mobility Radeon HD 8670) is a DirectX 11.1 graphics card for laptops. Just like the 8500M and 8700M series, it is based on the Mars chip (28nm GCN architecture) with 384 shader cores, 24 TMUs, and 8 ROPs. The core is clocked at 775 MHz (825 MHz Boost) and can access a DDR3 VRAM (64 Bit, 1000 MHz).

The performance of the Radeon HD 8670M is similar to the old Radeon HD 6750M and GeForce GT 630M. Current and demanding games like Far Cry 3 will run fluently only in low resolutions and detail settings.

The 384 shaders can be used with OpenCL 1.2 for general-purpose calculations (as 6 compute units). Compared to old TeraScale 2 chips, the GCN-based Mars architecture offers improved performance in this framework.

Features of the 8670M include video decoding via UVD3 for decoding MPEG-4 AVC/H.264, VC-1, MPEG-2, and Flash directly from the AMD GPU. Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD videos are now compatible as well.

The 8600M series also supports automatic graphics switching between the integrated GPU and discrete GPU. Called Enduro, the technology supersedes AMD's Dynamic Switchable Graphics and is similar to Nvidia's Optimus. Furthermore, the 8670M can directly support up to 2 connected monitors using Eyefinity Technology if Enduro is disabled.

Other features of the 8600M series include ZeroCore for reducing power consumption when the display is turned off and Power Gating to power down areas of the chip that are not used. PowerTune allows automatic overclocking and underclocking of the graphics card as long as the GPU is within its TDP limit. For example, the chip may be underclocked when running FurMark and OCCT, but will overclock in certain games like Lost Planet, Crysis or Resident Evil 5.

The integrated HD audio processor is able to transmit HD Audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g., for Blu-Ray videos). Additionally, it now allows audio to output simultaneously and in parallel to multiple devices with the new Discrete Digital Multipoint Audio (DDMA) feature.

The power consumption should be somewhat below that of the old HD 7670M. As a result, the 8670M is suited for 13-inch notebooks or larger.

Radeon HD 8600M Series
Radeon HD 8690M (compare) 384 @ 775 MHz64 Bit @ 4500 MHz
Radeon HD 8650M (compare) 384 @ 650 MHz64 Bit @ 4500 MHz
Radeon HD 8650G + HD 8670M Dual Graphics (compare) 768 @ 720 / 775 MHz64 Bit @ 1800 - 2000 MHz
Radeon HD 8550G + HD 8670M Dual Graphics (compare) 640 @ 720 / 975 MHz64 Bit @ 2000 MHz
Radeon HD 8670M 384 @ 775 MHz64 Bit @ 2000 MHz
Pipelines384 - unified
Core Speed775 MHz
Memory Speed2000 MHz
Memory Bus Width64 Bit
Memory TypeDDR3
Max. Amount of Memory1024 MB
Shared Memoryno
DirectXDirectX 11.1, Shader 5.0
technology28 nm
Notebook Sizemedium sized
Date of Announcement16.11.2012


3DMark - Cloud Gate Standard Score 1280x720
min: 3702     avg: 4025.6     median: 3977 (6%)     max: 4414 Points
3DMark - Cloud Gate Standard Graphics 1280x720
min: 4039     avg: 4684.8     median: 4840 (3%)     max: 5420 Points
3DMark - Fire Strike Score 1920x1080
min: 673     avg: 747     median: 767 (3%)     max: 811 Points
3DMark - Fire Strike Graphics 1920x1080
min: 719     avg: 803.6     median: 829 (2%)     max: 875 Points
3DMark - Ice Storm Standard Graphics 1280x720
min: 31480     avg: 42578.2     median: 40486 (5%)     max: 58277 Points
3DMark 11 - Performance 1280x720
min: 1195     avg: 1409     median: 1513 (4%)     max: 1542 points
3DMark 11 - Performance GPU 1280x720
min: 1070     avg: 1286     median: 1396 (3%)     max: 1413 points
3DMark Vantage
P Result 1280x1024 +
P GPU no PhysX 1280x1024 +
3DMark 06 Standard 1280x1024 +
SPECviewperf 11
Siemens NX 1920x1080 +
Tcvis 1920x1080 +
SolidWorks 1920x1080 +
Pro/ENGINEER 1920x1080 +
Maya 1920x1080 +
Lightwave 1920x1080 +
Ensight 1920x1080 +
Catia 1920x1080 +
Cinebench R10 Shading 32Bit +
Cinebench R11.5 OpenGL 64Bit +
Cinebench R15
OpenGL 64Bit +
Ref. Match 64Bit +
- 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.

F1 2014

F1 2014

low 1024x768
56  fps    + Compare
med. 1366x768
37  fps    + Compare
high 1920x1080
31  fps    + Compare
ultra 1920x1080
19  fps    + Compare
» With all tested laptops playable in detail settings med..
low 1280x720
23.4  fps    + Compare
med. 1344x756
15.5  fps    + Compare
high 1920x1080
8  fps    + Compare
» The benchmarks indicate that the game is not playable in the tested settings.