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

Comparative analysis of ATI Mobility Radeon HD 3850 X2 and ATI Mobility Radeon HD 3870 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.

ATI Mobility Radeon HD 3850 X2

ATI Mobility Radeon HD 3870

Differences

Reasons to consider the ATI Mobility Radeon HD 3850 X2

2.8x more texture fill rate: 2x 9.28 GTexel / s billion / sec vs 10.56 GTexel / s
2x more pipelines: 640 vs 320
Around 76% better floating-point performance: 2x 371.2 gflops vs 422.4 gflops
2x more maximum memory size: 2x 512 MB vs 512 MB

Texture fill rate	2x 9.28 GTexel / s billion / sec vs 10.56 GTexel / s
Pipelines	640 vs 320
Floating-point performance	2x 371.2 gflops vs 422.4 gflops
Maximum memory size	2x 512 MB vs 512 MB

Reasons to consider the ATI Mobility Radeon HD 3870

Around 14% higher core clock speed: 660 MHz vs 580 MHz
Around 27% lower typical power consumption: 55 Watt vs 70 Watt
Around 13% higher memory clock speed: 1700 MHz vs 1500 MHz

Core clock speed	660 MHz vs 580 MHz
Thermal Design Power (TDP)	55 Watt vs 70 Watt
Memory clock speed	1700 MHz vs 1500 MHz

Compare benchmarks

GPU 1: ATI Mobility Radeon HD 3850 X2
GPU 2: ATI Mobility Radeon HD 3870

Name	ATI Mobility Radeon HD 3850 X2	ATI Mobility Radeon HD 3870
PassMark - G3D Mark		548
PassMark - G2D Mark		288

Compare specifications (specs)

	ATI Mobility Radeon HD 3850 X2	ATI Mobility Radeon HD 3870
Essentials
Architecture	TeraScale	TeraScale
Code name	M88	M88
Launch date	4 June 2008	4 June 2008
Place in performance rating	not rated	537
Type	Laptop	Laptop
Technical info
Core clock speed	580 MHz	660 MHz
Floating-point performance	2x 371.2 gflops	422.4 gflops
Manufacturing process technology	55 nm	55 nm
Pipelines	640	320
Texture fill rate	2x 9.28 GTexel / s billion / sec	10.56 GTexel / s
Thermal Design Power (TDP)	70 Watt	55 Watt
Transistor count	666 million	666 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Laptop size	large	large
API support
DirectX	10.1	10.1
OpenGL	3.3	3.3
Memory
Maximum RAM amount	2x 512 MB	512 MB
Memory bandwidth	2x 48.0 GB / s	54.4 GB / s
Memory bus width	256 Bit	256 Bit
Memory clock speed	1500 MHz	1700 MHz
Memory type	GDDR3	GDDR3
Shared memory	0	0
Technologies
CrossFire
PCI-E 2.0
PowerPlay 7.0