AMD Radeon HD 7850 vs ATI Mobility Radeon HD 3870

Comparative analysis of AMD Radeon HD 7850 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, 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.

AMD Radeon HD 7850

ATI Mobility Radeon HD 3870

Differences

Reasons to consider the AMD Radeon HD 7850

Videocard is newer: launch date 3 year(s) 9 month(s) later
5.2x more texture fill rate: 55.04 GTexel / s vs 10.56 GTexel / s
3.2x more pipelines: 1024 vs 320
4.2x better floating-point performance: 1,761 gflops vs 422.4 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
4x more maximum memory size: 2 GB vs 512 MB
7.1x better performance in PassMark - G3D Mark: 3871 vs 548
Around 96% better performance in PassMark - G2D Mark: 564 vs 288

Specifications (specs)
Launch date	5 March 2012 vs 4 June 2008
Texture fill rate	55.04 GTexel / s vs 10.56 GTexel / s
Pipelines	1024 vs 320
Floating-point performance	1,761 gflops vs 422.4 gflops
Manufacturing process technology	28 nm vs 55 nm
Maximum memory size	2 GB vs 512 MB
Benchmarks
PassMark - G3D Mark	3871 vs 548
PassMark - G2D Mark	564 vs 288

Reasons to consider the ATI Mobility Radeon HD 3870

4.1x lower typical power consumption: 55 Watt vs 225 Watt
Around 42% higher memory clock speed: 1700 MHz vs 1200 MHz

Thermal Design Power (TDP)	55 Watt vs 225 Watt
Memory clock speed	1700 MHz vs 1200 MHz

Compare benchmarks

GPU 1: AMD Radeon HD 7850
GPU 2: ATI Mobility Radeon HD 3870

PassMark - G3D Mark

GPU 1

GPU 2

3871

548

PassMark - G2D Mark

GPU 1

GPU 2

564

288

Name	AMD Radeon HD 7850	ATI Mobility Radeon HD 3870
PassMark - G3D Mark	3871	548
PassMark - G2D Mark	564	288
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	47.041
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1028.005
CompuBench 1.5 Desktop - T-Rex (Frames/s)	4.41
CompuBench 1.5 Desktop - Video Composition (Frames/s)	72.975
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	249.482
GFXBench 4.0 - Car Chase Offscreen (Frames)	6173
GFXBench 4.0 - Manhattan (Frames)	3696
GFXBench 4.0 - T-Rex (Frames)	3351
GFXBench 4.0 - Car Chase Offscreen (Fps)	6173
GFXBench 4.0 - Manhattan (Fps)	3696
GFXBench 4.0 - T-Rex (Fps)	3351
3DMark Fire Strike - Graphics Score	1312

Compare specifications (specs)

	AMD Radeon HD 7850	ATI Mobility Radeon HD 3870
Essentials
Architecture	GCN 1.0	TeraScale
Code name	Pitcairn	M88
Design	AMD Radeon HD 7000 Series
Launch date	5 March 2012	4 June 2008
Launch price (MSRP)	$249
Place in performance rating	535	537
Price now	$449.59
Type	Desktop	Laptop
Value for money (0-100)	11.01
Technical info
Boost clock speed	1000 MHz
Floating-point performance	1,761 gflops	422.4 gflops
Manufacturing process technology	28 nm	55 nm
Pipelines	1024	320
Stream Processors	1200
Texture fill rate	55.04 GTexel / s	10.56 GTexel / s
Thermal Design Power (TDP)	225 Watt	55 Watt
Transistor count	2,800 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
VGA
Compatibility, dimensions and requirements
Bus support	PCIe 2.1 x16
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	210 mm
Supplementary power connectors	1x 6-pin
Laptop size		large
API support
DirectX	11	10.1
OpenGL	4.5	3.3
Memory
Maximum RAM amount	2 GB	512 MB
Memory bandwidth	153.6 GB/s	54.4 GB / s
Memory bus width	256 Bit	256 Bit
Memory clock speed	1200 MHz	1700 MHz
Memory type	GDDR5	GDDR3
Shared memory		0
Technologies
AMD Eyefinity
CrossFire
FreeSync
PowerPlay 7.0