AMD Radeon HD 7950 vs ATI Mobility Radeon HD 3870

Comparative analysis of AMD Radeon HD 7950 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: 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 - Car Chase Offscreen (Frames), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Fps), 3DMark Fire Strike - Graphics Score, PassMark - G3D Mark, PassMark - G2D Mark.

AMD Radeon HD 7950

ATI Mobility Radeon HD 3870

Differences

Reasons to consider the AMD Radeon HD 7950

Videocard is newer: launch date 3 year(s) 7 month(s) later
8.5x more texture fill rate: 89.6 GTexel / s vs 10.56 GTexel / s
5.6x more pipelines: 1792 vs 320
6.8x better floating-point performance: 2,867 gflops vs 422.4 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
6x more maximum memory size: 3 GB vs 512 MB

Launch date	31 January 2012 vs 4 June 2008
Texture fill rate	89.6 GTexel / s vs 10.56 GTexel / s
Pipelines	1792 vs 320
Floating-point performance	2,867 gflops vs 422.4 gflops
Manufacturing process technology	28 nm vs 55 nm
Maximum memory size	3 GB vs 512 MB

Reasons to consider the ATI Mobility Radeon HD 3870

5.5x lower typical power consumption: 55 Watt vs 300 Watt
Around 36% higher memory clock speed: 1700 MHz vs 1250 MHz

Thermal Design Power (TDP)	55 Watt vs 300 Watt
Memory clock speed	1700 MHz vs 1250 MHz

Compare benchmarks

GPU 1: AMD Radeon HD 7950
GPU 2: ATI Mobility Radeon HD 3870

Name	AMD Radeon HD 7950	ATI Mobility Radeon HD 3870
Geekbench - OpenCL	82144
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	63.74
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1177.395
CompuBench 1.5 Desktop - T-Rex (Frames/s)	5.685
CompuBench 1.5 Desktop - Video Composition (Frames/s)	69.23
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	343.81
GFXBench 4.0 - Car Chase Offscreen (Frames)	7988
GFXBench 4.0 - Manhattan (Frames)	3699
GFXBench 4.0 - T-Rex (Frames)	3359
GFXBench 4.0 - Car Chase Offscreen (Fps)	7988
GFXBench 4.0 - Manhattan (Fps)	3699
GFXBench 4.0 - T-Rex (Fps)	3359
3DMark Fire Strike - Graphics Score	1914
PassMark - G3D Mark		548
PassMark - G2D Mark		288

Compare specifications (specs)

	AMD Radeon HD 7950	ATI Mobility Radeon HD 3870
Essentials
Architecture	GCN 1.0	TeraScale
Code name	Tahiti	M88
Design	AMD Radeon HD 7000 Series
Launch date	31 January 2012	4 June 2008
Launch price (MSRP)	$449
Place in performance rating	534	537
Type	Desktop	Laptop
Technical info
Boost clock speed	1250 MHz
Compute units	28
Floating-point performance	2,867 gflops	422.4 gflops
Manufacturing process technology	28 nm	55 nm
Pipelines	1792	320
Stream Processors	1792
Texture fill rate	89.6 GTexel / s	10.56 GTexel / s
Thermal Design Power (TDP)	300 Watt	55 Watt
Transistor count	4,313 million	666 million
Core clock speed		660 MHz
Video outputs and ports
Display Connectors	1x DVI, 1x HDMI, 2x mini-DisplayPort	No outputs
DisplayPort support
Dual-link DVI support
Eyefinity
HDMI
Number of Eyefinity displays	6
VGA
Compatibility, dimensions and requirements
Bus support	PCIe 3.0 x16
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	267 mm
Supplementary power connectors	2x 6-pin
Laptop size		large
API support
DirectX	11	10.1
OpenGL	4.5	3.3
Memory
Maximum RAM amount	3 GB	512 MB
Memory bandwidth	240 GB/s	54.4 GB / s
Memory bus width	384 Bit	256 Bit
Memory clock speed	1250 MHz	1700 MHz
Memory type	GDDR5	GDDR3
Shared memory		0
Technologies
AMD Eyefinity
AppAcceleration
CrossFire
FreeSync
PowerTune
ZeroCore
PowerPlay 7.0