NVIDIA Tesla K20m vs ATI Radeon HD 3850 X2

Comparative analysis of NVIDIA Tesla K20m and ATI 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. Benchmark videocards performance analysis: PassMark - G3D Mark, PassMark - G2D Mark, 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).

NVIDIA Tesla K20m

ATI Radeon HD 3850 X2

Differences

Reasons to consider the NVIDIA Tesla K20m

Videocard is newer: launch date 4 year(s) 9 month(s) later
Around 6% higher core clock speed: 706 MHz vs 669 MHz
3.9x more pipelines: 2496 vs 2x 320
4.1x better floating-point performance: 3,524 gflops vs 2x 428.2 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 55 nm
5x more maximum memory size: 5 GB vs 2x 512 MB
3.1x more memory clock speed: 5200 MHz vs 1656 MHz
5.4x better performance in PassMark - G3D Mark: 4432 vs 822

Specifications (specs)
Launch date	5 January 2013 vs 4 April 2008
Core clock speed	706 MHz vs 669 MHz
Pipelines	2496 vs 2x 320
Floating-point performance	3,524 gflops vs 2x 428.2 gflops
Manufacturing process technology	28 nm vs 55 nm
Maximum memory size	5 GB vs 2x 512 MB
Memory clock speed	5200 MHz vs 1656 MHz
Benchmarks
PassMark - G3D Mark	4432 vs 822

Reasons to consider the ATI Radeon HD 3850 X2

Around 44% higher texture fill rate: 2x 10.7 GTexel / s billion / sec vs 146.8 GTexel / s
Around 61% lower typical power consumption: 140 Watt vs 225 Watt
2x better performance in PassMark - G2D Mark: 422 vs 210

Specifications (specs)
Texture fill rate	2x 10.7 GTexel / s billion / sec vs 146.8 GTexel / s
Thermal Design Power (TDP)	140 Watt vs 225 Watt
Benchmarks
PassMark - G2D Mark	422 vs 210

Compare benchmarks

GPU 1: NVIDIA Tesla K20m
GPU 2: ATI Radeon HD 3850 X2

PassMark - G3D Mark

GPU 1

GPU 2

4432

822

PassMark - G2D Mark

GPU 1

GPU 2

210

422

Name	NVIDIA Tesla K20m	ATI Radeon HD 3850 X2
PassMark - G3D Mark	4432	822
PassMark - G2D Mark	210	422
Geekbench - OpenCL	16085
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	54.89
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1414.755
CompuBench 1.5 Desktop - T-Rex (Frames/s)	5.303
CompuBench 1.5 Desktop - Video Composition (Frames/s)	83.807
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	250.291
GFXBench 4.0 - Car Chase Offscreen (Frames)	8319
GFXBench 4.0 - Manhattan (Frames)	7337
GFXBench 4.0 - T-Rex (Frames)	10873
GFXBench 4.0 - Car Chase Offscreen (Fps)	8319
GFXBench 4.0 - Manhattan (Fps)	7337
GFXBench 4.0 - T-Rex (Fps)	10873

Compare specifications (specs)

	NVIDIA Tesla K20m	ATI Radeon HD 3850 X2
Essentials
Architecture	Kepler	TeraScale
Code name	GK110	RV670
Launch date	5 January 2013	4 April 2008
Launch price (MSRP)	$3,199	$349
Place in performance rating	414	381
Type	Workstation	Desktop
Technical info
Core clock speed	706 MHz	669 MHz
Floating-point performance	3,524 gflops	2x 428.2 gflops
Manufacturing process technology	28 nm	55 nm
Pipelines	2496	2x 320
Texture fill rate	146.8 GTexel / s	2x 10.7 GTexel / s billion / sec
Thermal Design Power (TDP)	225 Watt	140 Watt
Transistor count	7,080 million	666 million
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x S-Video
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	267 mm	267 mm
Supplementary power connectors	1x 6-pin + 1x 8-pin
API support
DirectX	12.0 (11_0)	10.0
OpenGL	4.6	3.3
Memory
Maximum RAM amount	5 GB	2x 512 MB
Memory bandwidth	208.0 GB / s	2x 53.0 GB / s
Memory bus width	320 Bit	2x 256 Bit
Memory clock speed	5200 MHz	1656 MHz
Memory type	GDDR5	GDDR3