ATI Radeon HD 4670 X2 vs ATI Mobility Radeon HD 3870 X2

Comparative analysis of ATI Radeon HD 4670 X2 and ATI Mobility Radeon HD 3870 X2 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark.

ATI Radeon HD 4670 X2

ATI Mobility Radeon HD 3870 X2

Differences

Reasons to consider the ATI Radeon HD 4670 X2

Around 14% higher core clock speed: 750 MHz vs 660 MHz
Around 6% higher texture fill rate: 2x 24 GTexel / s billion / sec vs 2x 10.56 GTexel / s billion / sec
Around 14% better floating-point performance: 2x 480.0 gflops vs 2x 422.4 gflops

Core clock speed	750 MHz vs 660 MHz
Texture fill rate	2x 24 GTexel / s billion / sec vs 2x 10.56 GTexel / s billion / sec
Floating-point performance	2x 480.0 gflops vs 2x 422.4 gflops

Reasons to consider the ATI Mobility Radeon HD 3870 X2

Around 7% lower typical power consumption: 110 Watt vs 118 Watt
Around 21% higher memory clock speed: 1700 MHz vs 1400 MHz

Thermal Design Power (TDP)	110 Watt vs 118 Watt
Memory clock speed	1700 MHz vs 1400 MHz

Compare benchmarks

GPU 1: ATI Radeon HD 4670 X2
GPU 2: ATI Mobility Radeon HD 3870 X2

Name	ATI Radeon HD 4670 X2	ATI Mobility Radeon HD 3870 X2
PassMark - G3D Mark		478
PassMark - G2D Mark		187

Compare specifications (specs)

	ATI Radeon HD 4670 X2	ATI Mobility Radeon HD 3870 X2
Essentials
Architecture	TeraScale	TeraScale
Code name	RV730	M88
Launch date	10 September 2008	1 September 2008
Place in performance rating	not rated	877
Type	Desktop	Laptop
Technical info
Core clock speed	750 MHz	660 MHz
Floating-point performance	2x 480.0 gflops	2x 422.4 gflops
Manufacturing process technology	55 nm	55 nm
Pipelines	2x 320	640
Texture fill rate	2x 24 GTexel / s billion / sec	2x 10.56 GTexel / s billion / sec
Thermal Design Power (TDP)	118 Watt	110 Watt
Transistor count	514 million	666 million
Video outputs and ports
Display Connectors	4x DVI	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Supplementary power connectors	1x 6-pin
Laptop size		large
API support
DirectX	10.1	10.1
OpenGL	3.3	3.3
Memory
Maximum RAM amount	2x 512 MB	2x 512 MB
Memory bandwidth	2x 22.4 GB / s	2x 54.4 GB / s
Memory bus width	2x 128 Bit	256 Bit
Memory clock speed	1400 MHz	1700 MHz
Memory type	GDDR3	GDDR3
Shared memory		0