NVIDIA Tesla K40c vs AMD Radeon HD 7950

Comparative analysis of NVIDIA Tesla K40c and AMD Radeon HD 7950 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), PassMark - G2D Mark, PassMark - G3D Mark, 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.

NVIDIA Tesla K40c

AMD Radeon HD 7950

Differences

Reasons to consider the NVIDIA Tesla K40c

Videocard is newer: launch date 1 year(s) 8 month(s) later
2x more texture fill rate: 178.8 GTexel / s vs 89.6 GTexel / s
Around 61% higher pipelines: 2880 vs 1792
Around 50% better floating-point performance: 4,291 gflops vs 2,867 gflops
Around 22% lower typical power consumption: 245 Watt vs 300 Watt
4x more maximum memory size: 12 GB vs 3 GB
4.8x more memory clock speed: 6008 MHz vs 1250 MHz
Around 51% better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 1779.043 vs 1177.395
Around 14% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 6.463 vs 5.685
Around 49% better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 103.169 vs 69.23

Specifications (specs)
Launch date	8 October 2013 vs 31 January 2012
Texture fill rate	178.8 GTexel / s vs 89.6 GTexel / s
Pipelines	2880 vs 1792
Floating-point performance	4,291 gflops vs 2,867 gflops
Thermal Design Power (TDP)	245 Watt vs 300 Watt
Maximum memory size	12 GB vs 3 GB
Memory clock speed	6008 MHz vs 1250 MHz
Benchmarks
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1779.043 vs 1177.395
CompuBench 1.5 Desktop - T-Rex (Frames/s)	6.463 vs 5.685
CompuBench 1.5 Desktop - Video Composition (Frames/s)	103.169 vs 69.23

Reasons to consider the AMD Radeon HD 7950

4.7x better performance in Geekbench - OpenCL: 82144 vs 17468
Around 4% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 63.74 vs 61.566
Around 12% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 343.81 vs 308.261

Benchmarks
Geekbench - OpenCL	82144 vs 17468
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	63.74 vs 61.566
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	343.81 vs 308.261

Compare benchmarks

GPU 1: NVIDIA Tesla K40c
GPU 2: AMD Radeon HD 7950

Geekbench - OpenCL

GPU 1

GPU 2

17468

82144

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

61.566

63.74

CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)

GPU 1

GPU 2

1779.043

1177.395

CompuBench 1.5 Desktop - T-Rex (Frames/s)

GPU 1

GPU 2

6.463

5.685

CompuBench 1.5 Desktop - Video Composition (Frames/s)

GPU 1

GPU 2

103.169

69.23

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

GPU 1

GPU 2

308.261

343.81

Name	NVIDIA Tesla K40c	AMD Radeon HD 7950
Geekbench - OpenCL	17468	82144
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	61.566	63.74
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1779.043	1177.395
CompuBench 1.5 Desktop - T-Rex (Frames/s)	6.463	5.685
CompuBench 1.5 Desktop - Video Composition (Frames/s)	103.169	69.23
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	308.261	343.81
PassMark - G2D Mark	325
PassMark - G3D Mark	4495
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

Compare specifications (specs)

	NVIDIA Tesla K40c	AMD Radeon HD 7950
Essentials
Architecture	Kepler	GCN 1.0
Code name	GK110B	Tahiti
Launch date	8 October 2013	31 January 2012
Launch price (MSRP)	$7,699	$449
Place in performance rating	531	534
Type	Workstation	Desktop
Design		AMD Radeon HD 7000 Series
Technical info
Core clock speed	745 MHz
Floating-point performance	4,291 gflops	2,867 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	2880	1792
Texture fill rate	178.8 GTexel / s	89.6 GTexel / s
Thermal Design Power (TDP)	245 Watt	300 Watt
Transistor count	7,080 million	4,313 million
Boost clock speed		1250 MHz
Compute units		28
Stream Processors		1792
Video outputs and ports
Display Connectors	No outputs	1x DVI, 1x HDMI, 2x mini-DisplayPort
DisplayPort support
Dual-link DVI support
Eyefinity
HDMI
Number of Eyefinity displays		6
VGA
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 3.0 x16
Length	267 mm	267 mm
Supplementary power connectors	1x 6-pin + 1x 8-pin	2x 6-pin
Bus support		PCIe 3.0 x16
API support
DirectX	12.0 (11_1)	11
OpenGL	4.6	4.5
Memory
Maximum RAM amount	12 GB	3 GB
Memory bandwidth	288.4 GB / s	240 GB/s
Memory bus width	384 Bit	384 Bit
Memory clock speed	6008 MHz	1250 MHz
Memory type	GDDR5	GDDR5
Technologies
AMD Eyefinity
AppAcceleration
CrossFire
FreeSync
PowerTune
ZeroCore