ATI Radeon HD 3870 Mac Edition vs ATI Mobility Radeon HD 3850 X2

Comparative analysis of ATI Radeon HD 3870 Mac Edition and ATI Mobility Radeon HD 3850 X2 videocards for all known characteristics in the following categories: Essentials, Technical info, Video outputs and ports, Compatibility, dimensions and requirements, API support, Memory, Technologies.

ATI Radeon HD 3870 Mac Edition

ATI Mobility Radeon HD 3850 X2

Differences

Reasons to consider the ATI Radeon HD 3870 Mac Edition

Around 34% higher core clock speed: 777 MHz vs 580 MHz
Around 50% higher memory clock speed: 2252 MHz vs 1500 MHz

Core clock speed	777 MHz vs 580 MHz
Memory clock speed	2252 MHz vs 1500 MHz

Reasons to consider the ATI Mobility Radeon HD 3850 X2

2.4x more texture fill rate: 2x 9.28 GTexel / s billion / sec vs 12.43 GTexel / s
2x more pipelines: 640 vs 320
Around 49% better floating-point performance: 2x 371.2 gflops vs 497.3 gflops
Around 51% lower typical power consumption: 70 Watt vs 106 Watt
2x more maximum memory size: 2x 512 MB vs 512 MB

Texture fill rate	2x 9.28 GTexel / s billion / sec vs 12.43 GTexel / s
Pipelines	640 vs 320
Floating-point performance	2x 371.2 gflops vs 497.3 gflops
Thermal Design Power (TDP)	70 Watt vs 106 Watt
Maximum memory size	2x 512 MB vs 512 MB

Compare specifications (specs)

	ATI Radeon HD 3870 Mac Edition	ATI Mobility Radeon HD 3850 X2
Essentials
Architecture	TeraScale	TeraScale
Code name	RV670	M88
Launch date	12 June 2008	4 June 2008
Place in performance rating	not rated	not rated
Type	Desktop	Laptop
Technical info
Core clock speed	777 MHz	580 MHz
Floating-point performance	497.3 gflops	2x 371.2 gflops
Manufacturing process technology	55 nm	55 nm
Pipelines	320	640
Texture fill rate	12.43 GTexel / s	2x 9.28 GTexel / s billion / sec
Thermal Design Power (TDP)	106 Watt	70 Watt
Transistor count	666 million	666 million
Video outputs and ports
Display Connectors	2x DVI, 1x S-Video	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	241 mm
Supplementary power connectors	1x 6-pin
Laptop size		large
API support
DirectX	10.0	10.1
OpenGL	3.3	3.3
Memory
Maximum RAM amount	512 MB	2x 512 MB
Memory bandwidth	72.1 GB / s	2x 48.0 GB / s
Memory bus width	256 Bit	256 Bit
Memory clock speed	2252 MHz	1500 MHz
Memory type	GDDR4	GDDR3
Shared memory		0
Technologies
CrossFire
PCI-E 2.0