NVIDIA Tesla K40c vs AMD Radeon HD 6650A

Comparative analysis of NVIDIA Tesla K40c 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: 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), PassMark - G2D Mark, PassMark - G3D Mark.

NVIDIA Tesla K40c

AMD Radeon HD 6650A

Differences

Reasons to consider the NVIDIA Tesla K40c

Videocard is newer: launch date 2 year(s) 5 month(s) later
Around 24% higher core clock speed: 745 MHz vs 600 MHz
12.4x more texture fill rate: 178.8 GTexel / s vs 14.4 GTexel / s
6x more pipelines: 2880 vs 480
7.4x better floating-point performance: 4,291 gflops vs 576.0 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
12x more maximum memory size: 12 GB vs 1 GB
3.3x more memory clock speed: 6008 MHz vs 1800 MHz
5.4x better performance in PassMark - G3D Mark: 4495 vs 836

Specifications (specs)
Launch date	8 October 2013 vs 19 April 2011
Core clock speed	745 MHz vs 600 MHz
Texture fill rate	178.8 GTexel / s vs 14.4 GTexel / s
Pipelines	2880 vs 480
Floating-point performance	4,291 gflops vs 576.0 gflops
Manufacturing process technology	28 nm vs 40 nm
Maximum memory size	12 GB vs 1 GB
Memory clock speed	6008 MHz vs 1800 MHz
Benchmarks
PassMark - G3D Mark	4495 vs 836

Reasons to consider the AMD Radeon HD 6650A

5.4x lower typical power consumption: 45 Watt vs 245 Watt
Around 29% better performance in PassMark - G2D Mark: 418 vs 325

Specifications (specs)
Thermal Design Power (TDP)	45 Watt vs 245 Watt
Benchmarks
PassMark - G2D Mark	418 vs 325

Compare benchmarks

GPU 1: NVIDIA Tesla K40c
GPU 2: AMD Radeon HD 6650A

PassMark - G2D Mark

GPU 1

GPU 2

325

418

PassMark - G3D Mark

GPU 1

GPU 2

4495

836

Name	NVIDIA Tesla K40c	AMD Radeon HD 6650A
Geekbench - OpenCL	17468
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	61.566
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1779.043
CompuBench 1.5 Desktop - T-Rex (Frames/s)	6.463
CompuBench 1.5 Desktop - Video Composition (Frames/s)	103.169
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	308.261
PassMark - G2D Mark	325	418
PassMark - G3D Mark	4495	836

Compare specifications (specs)

	NVIDIA Tesla K40c	AMD Radeon HD 6650A
Essentials
Architecture	Kepler	TeraScale 2
Code name	GK110B	Onega
Launch date	8 October 2013	19 April 2011
Launch price (MSRP)	$7,699
Place in performance rating	513	349
Type	Workstation	Desktop
Technical info
Core clock speed	745 MHz	600 MHz
Floating-point performance	4,291 gflops	576.0 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	2880	480
Texture fill rate	178.8 GTexel / s	14.4 GTexel / s
Thermal Design Power (TDP)	245 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 3.0 x16	MXM-A (3.0)
Length	267 mm
Supplementary power connectors	1x 6-pin + 1x 8-pin
API support
DirectX	12.0 (11_1)	11.2 (11_0)
OpenGL	4.6	4.4
Memory
Maximum RAM amount	12 GB	1 GB
Memory bandwidth	288.4 GB / s	28.8 GB / s
Memory bus width	384 Bit	128 Bit
Memory clock speed	6008 MHz	1800 MHz
Memory type	GDDR5	DDR3