NVIDIA GeForce 840A vs NVIDIA Tesla K20c

Comparative analysis of NVIDIA GeForce 840A and NVIDIA Tesla K20c 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, GFXBench 4.0 - Car Chase Offscreen (Frames), GFXBench 4.0 - Car Chase Offscreen (Fps), GFXBench 4.0 - Manhattan (Frames), GFXBench 4.0 - Manhattan (Fps), GFXBench 4.0 - T-Rex (Frames), GFXBench 4.0 - T-Rex (Fps), 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).

NVIDIA GeForce 840A

NVIDIA Tesla K20c

Differences

Reasons to consider the NVIDIA GeForce 840A

Videocard is newer: launch date 1 year(s) 4 month(s) later
Around 46% higher core clock speed: 1029 MHz vs 706 MHz
6.8x lower typical power consumption: 33 Watt vs 225 Watt

Launch date	17 March 2014 vs 12 November 2012
Core clock speed	1029 MHz vs 706 MHz
Thermal Design Power (TDP)	33 Watt vs 225 Watt

Reasons to consider the NVIDIA Tesla K20c

8.2x more texture fill rate: 146.8 GTexel / s vs 17.98 GTexel / s
6.5x more pipelines: 2496 vs 384
4.1x better floating-point performance: 3,524 gflops vs 863.2 gflops
5x more maximum memory size: 5 GB vs 1 GB
2.6x more memory clock speed: 5200 MHz vs 2002 MHz
2.8x better performance in Geekbench - OpenCL: 15597 vs 5596

Specifications (specs)
Texture fill rate	146.8 GTexel / s vs 17.98 GTexel / s
Pipelines	2496 vs 384
Floating-point performance	3,524 gflops vs 863.2 gflops
Maximum memory size	5 GB vs 1 GB
Memory clock speed	5200 MHz vs 2002 MHz
Benchmarks
Geekbench - OpenCL	15597 vs 5596

Compare benchmarks

GPU 1: NVIDIA GeForce 840A
GPU 2: NVIDIA Tesla K20c

Geekbench - OpenCL

GPU 1

GPU 2

5596

15597

Name	NVIDIA GeForce 840A	NVIDIA Tesla K20c
PassMark - G3D Mark	1123
PassMark - G2D Mark	221
Geekbench - OpenCL	5596	15597
GFXBench 4.0 - Car Chase Offscreen (Frames)	2188
GFXBench 4.0 - Car Chase Offscreen (Fps)	2188
GFXBench 4.0 - Manhattan (Frames)	2314
GFXBench 4.0 - Manhattan (Fps)	2314
GFXBench 4.0 - T-Rex (Frames)	3117
GFXBench 4.0 - T-Rex (Fps)	3117
CompuBench 1.5 Desktop - Face Detection (mPixels/s)		39.423
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)		1427.15
CompuBench 1.5 Desktop - T-Rex (Frames/s)		4.128
CompuBench 1.5 Desktop - Video Composition (Frames/s)		64.383
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)		179.044

Compare specifications (specs)

	NVIDIA GeForce 840A	NVIDIA Tesla K20c
Essentials
Architecture	Maxwell	Kepler
Code name	GM108	GK110
Launch date	17 March 2014	12 November 2012
Place in performance rating	1003	1006
Type	Desktop	Workstation
Launch price (MSRP)		$3,199
Technical info
Boost clock speed	1124 MHz
Core clock speed	1029 MHz	706 MHz
Floating-point performance	863.2 gflops	3,524 gflops
Manufacturing process technology	28 nm	28 nm
Pipelines	384	2496
Texture fill rate	17.98 GTexel / s	146.8 GTexel / s
Thermal Design Power (TDP)	33 Watt	225 Watt
Transistor count		7,080 million
Video outputs and ports
Display Connectors	No outputs	No outputs
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x8	PCIe 2.0 x16
Length		267 mm
Supplementary power connectors		1x 6-pin + 1x 8-pin
API support
DirectX	12.0 (11_0)	12.0 (11_0)
OpenGL	4.6	4.6
Memory
Maximum RAM amount	1 GB	5 GB
Memory bandwidth	16.02 GB / s	208.0 GB / s
Memory bus width	64 Bit	320 Bit
Memory clock speed	2002 MHz	5200 MHz
Memory type	DDR3	GDDR5