NVIDIA Tesla K20m vs AMD Radeon HD 6650A

Comparative analysis of NVIDIA Tesla K20m and AMD Radeon HD 6650A 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

AMD Radeon HD 6650A

Differences

Reasons to consider the NVIDIA Tesla K20m

Videocard is newer: launch date 1 year(s) 8 month(s) later
Around 18% higher core clock speed: 706 MHz vs 600 MHz
10.2x more texture fill rate: 146.8 GTexel / s vs 14.4 GTexel / s
5.2x more pipelines: 2496 vs 480
6.1x better floating-point performance: 3,524 gflops vs 576.0 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
5x more maximum memory size: 5 GB vs 1 GB
2.9x more memory clock speed: 5200 MHz vs 1800 MHz
5.3x better performance in PassMark - G3D Mark: 4432 vs 836

Specifications (specs)
Launch date	5 January 2013 vs 19 April 2011
Core clock speed	706 MHz vs 600 MHz
Texture fill rate	146.8 GTexel / s vs 14.4 GTexel / s
Pipelines	2496 vs 480
Floating-point performance	3,524 gflops vs 576.0 gflops
Manufacturing process technology	28 nm vs 40 nm
Maximum memory size	5 GB vs 1 GB
Memory clock speed	5200 MHz vs 1800 MHz
Benchmarks
PassMark - G3D Mark	4432 vs 836

Reasons to consider the AMD Radeon HD 6650A

5x lower typical power consumption: 45 Watt vs 225 Watt
Around 99% better performance in PassMark - G2D Mark: 418 vs 210

Specifications (specs)
Thermal Design Power (TDP)	45 Watt vs 225 Watt
Benchmarks
PassMark - G2D Mark	418 vs 210

Compare benchmarks

GPU 1: NVIDIA Tesla K20m
GPU 2: AMD Radeon HD 6650A

PassMark - G3D Mark

GPU 1

GPU 2

4432

836

PassMark - G2D Mark

GPU 1

GPU 2

210

418

Name	NVIDIA Tesla K20m	AMD Radeon HD 6650A
PassMark - G3D Mark	4432	836
PassMark - G2D Mark	210	418
Geekbench - OpenCL	14510
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	AMD Radeon HD 6650A
Essentials
Architecture	Kepler	TeraScale 2
Code name	GK110	Onega
Launch date	5 January 2013	19 April 2011
Launch price (MSRP)	$3,199
Place in performance rating	407	350
Type	Workstation	Desktop
Technical info
Core clock speed	706 MHz	600 MHz
Floating-point performance	3,524 gflops	576.0 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	2496	480
Texture fill rate	146.8 GTexel / s	14.4 GTexel / s
Thermal Design Power (TDP)	225 Watt	45 Watt
Transistor count	7,080 million	716 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	MXM-A (3.0)
Length	267 mm
Supplementary power connectors	1x 6-pin + 1x 8-pin
API support
DirectX	12.0 (11_0)	11.2 (11_0)
OpenGL	4.6	4.4
Memory
Maximum RAM amount	5 GB	1 GB
Memory bandwidth	208.0 GB / s	28.8 GB / s
Memory bus width	320 Bit	128 Bit
Memory clock speed	5200 MHz	1800 MHz
Memory type	GDDR5	DDR3