ATI Mobility Radeon HD 3870 X2 vs ATI Radeon HD 2600 PRO

Comparative analysis of ATI Mobility Radeon HD 3870 X2 and ATI Radeon HD 2600 PRO 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, GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps).

ATI Mobility Radeon HD 3870 X2

ATI Radeon HD 2600 PRO

Differences

Reasons to consider the ATI Mobility Radeon HD 3870 X2

Videocard is newer: launch date 1 year(s) 2 month(s) later
Around 10% higher core clock speed: 660 MHz vs 600 MHz
43.9x more texture fill rate: 2x 10.56 GTexel / s billion / sec vs 4.8 GTexel / s
5.3x more pipelines: 640 vs 120
5.9x better floating-point performance: 2x 422.4 gflops vs 144 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 55 nm vs 65 nm
4x more maximum memory size: 2x 512 MB vs 256 MB
Around 70% higher memory clock speed: 1700 MHz vs 1000 MHz
2.3x better performance in PassMark - G3D Mark: 478 vs 211

Specifications (specs)
Launch date	1 September 2008 vs 28 June 2007
Core clock speed	660 MHz vs 600 MHz
Texture fill rate	2x 10.56 GTexel / s billion / sec vs 4.8 GTexel / s
Pipelines	640 vs 120
Floating-point performance	2x 422.4 gflops vs 144 gflops
Manufacturing process technology	55 nm vs 65 nm
Maximum memory size	2x 512 MB vs 256 MB
Memory clock speed	1700 MHz vs 1000 MHz
Benchmarks
PassMark - G3D Mark	478 vs 211

Reasons to consider the ATI Radeon HD 2600 PRO

3.1x lower typical power consumption: 35 Watt vs 110 Watt
Around 80% better performance in PassMark - G2D Mark: 337 vs 187

Specifications (specs)
Thermal Design Power (TDP)	35 Watt vs 110 Watt
Benchmarks
PassMark - G2D Mark	337 vs 187

Compare benchmarks

GPU 1: ATI Mobility Radeon HD 3870 X2
GPU 2: ATI Radeon HD 2600 PRO

PassMark - G3D Mark

GPU 1

GPU 2

478

211

PassMark - G2D Mark

GPU 1

GPU 2

187

337

Name	ATI Mobility Radeon HD 3870 X2	ATI Radeon HD 2600 PRO
PassMark - G3D Mark	478	211
PassMark - G2D Mark	187	337
GFXBench 4.0 - T-Rex (Frames)		1693
GFXBench 4.0 - T-Rex (Fps)		1693

Compare specifications (specs)

	ATI Mobility Radeon HD 3870 X2	ATI Radeon HD 2600 PRO
Essentials
Architecture	TeraScale	TeraScale
Code name	M88	RV630
Launch date	1 September 2008	28 June 2007
Place in performance rating	869	871
Type	Laptop	Desktop
Technical info
Core clock speed	660 MHz	600 MHz
Floating-point performance	2x 422.4 gflops	144 gflops
Manufacturing process technology	55 nm	65 nm
Pipelines	640	120
Texture fill rate	2x 10.56 GTexel / s billion / sec	4.8 GTexel / s
Thermal Design Power (TDP)	110 Watt	35 Watt
Transistor count	666 million	390 million
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 1.0 x16
Laptop size	large
Supplementary power connectors		None
API support
DirectX	10.1	10.0
OpenGL	3.3	3.3
Memory
Maximum RAM amount	2x 512 MB	256 MB
Memory bandwidth	2x 54.4 GB / s	16 GB / s
Memory bus width	256 Bit	128 Bit
Memory clock speed	1700 MHz	1000 MHz
Memory type	GDDR3	DDR2
Shared memory	0