AMD Radeon HD 6870M vs AMD Radeon HD 6970M

Comparative analysis of AMD Radeon HD 6870M and AMD Radeon HD 6970M videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, Geekbench - OpenCL, CompuBench 1.5 Desktop - Face Detection (mPixels/s), CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s), CompuBench 1.5 Desktop - T-Rex (Frames/s), CompuBench 1.5 Desktop - Video Composition (Frames/s), CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps).

AMD Radeon HD 6870M

AMD Radeon HD 6970M

Differences

Reasons to consider the AMD Radeon HD 6870M

Around 50% lower typical power consumption: 50 Watt vs 75 Watt
Around 11% higher memory clock speed: 4000 MHz vs 3600 MHz

Thermal Design Power (TDP)	50 Watt vs 75 Watt
Memory clock speed	4000 MHz vs 3600 MHz

Reasons to consider the AMD Radeon HD 6970M

Around 1% higher core clock speed: 680 MHz vs 675 MHz
Around 21% higher texture fill rate: 32.6 GTexel / s vs 27 GTexel / s
Around 20% higher pipelines: 960 vs 800
Around 21% better floating-point performance: 1,305.6 gflops vs 1,080.0 gflops

Core clock speed	680 MHz vs 675 MHz
Texture fill rate	32.6 GTexel / s vs 27 GTexel / s
Pipelines	960 vs 800
Floating-point performance	1,305.6 gflops vs 1,080.0 gflops

Compare benchmarks

GPU 1: AMD Radeon HD 6870M
GPU 2: AMD Radeon HD 6970M

Name	AMD Radeon HD 6870M	AMD Radeon HD 6970M
PassMark - G3D Mark		2270
PassMark - G2D Mark		656
Geekbench - OpenCL		3349
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		4.787
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		617.819
CompuBench 1.5 Desktop - T-Rex (Frames/s)		0.927
CompuBench 1.5 Desktop - Video Composition (Frames/s)		24.456
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		117.801
GFXBench 4.0 - Manhattan (Frames)		3229
GFXBench 4.0 - T-Rex (Frames)		3342
GFXBench 4.0 - Manhattan (Fps)		3229
GFXBench 4.0 - T-Rex (Fps)		3342

Compare specifications (specs)

	AMD Radeon HD 6870M	AMD Radeon HD 6970M
Essentials
Architecture	TeraScale 2	TeraScale 2
Code name	Granville	Blackcomb
Launch date	4 January 2011	4 January 2011
Place in performance rating	not rated	778
Type	Laptop	Laptop
Technical info
Core clock speed	675 MHz	680 MHz
Floating-point performance	1,080.0 gflops	1,305.6 gflops
Manufacturing process technology	40 nm	40 nm
Pipelines	800	960
Texture fill rate	27 GTexel / s	32.6 GTexel / s
Thermal Design Power (TDP)	50 Watt	75 Watt
Transistor count	1,040 million	1,700 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	MXM-B (3.0)	MXM-B (3.0)
Laptop size	large	large
Supplementary power connectors		None
API support
DirectX	11.2 (11_0)	11.2 (11_0)
OpenGL	4.4	4.4
Memory
Maximum RAM amount	1 GB	1 GB
Memory bandwidth	64.0 GB / s	115.2 GB / s
Memory bus width	128 Bit	256 Bit
Memory clock speed	4000 MHz	3600 MHz
Memory type	DDR3, GDDR3, GDDR5	GDDR5
Shared memory	0	0
Technologies
HDMI 1.3a