NVIDIA Quadro K620 vs NVIDIA Tesla K20c

Comparative analysis of NVIDIA Quadro K620 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, Technologies. 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), 3DMark Fire Strike - Graphics Score.

NVIDIA Quadro K620

NVIDIA Tesla K20c

Differences

Reasons to consider the NVIDIA Quadro K620

Videocard is newer: launch date 1 year(s) 8 month(s) later
Around 50% higher core clock speed: 1058 MHz vs 706 MHz
5.5x lower typical power consumption: 41 Watt vs 225 Watt

Launch date	22 July 2014 vs 12 November 2012
Core clock speed	1058 MHz vs 706 MHz
Thermal Design Power (TDP)	41 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
2.5x more maximum memory size: 5 GB vs 2 GB
2.9x more memory clock speed: 5200 MHz vs 1800 MHz
2.3x better performance in Geekbench - OpenCL: 15597 vs 6869
Around 78% better performance in CompuBench 1.5 Desktop - Face Detection (mPixels/s): 39.423 vs 22.112
4.8x better performance in CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s): 1427.15 vs 297.631
2.9x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 4.128 vs 1.427
4.2x better performance in CompuBench 1.5 Desktop - Video Composition (Frames/s): 64.383 vs 15.363
Around 81% better performance in CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s): 179.044 vs 99.125

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 2 GB
Memory clock speed	5200 MHz vs 1800 MHz
Benchmarks
Geekbench - OpenCL	15597 vs 6869
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	39.423 vs 22.112
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1427.15 vs 297.631
CompuBench 1.5 Desktop - T-Rex (Frames/s)	4.128 vs 1.427
CompuBench 1.5 Desktop - Video Composition (Frames/s)	64.383 vs 15.363
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	179.044 vs 99.125

Compare benchmarks

GPU 1: NVIDIA Quadro K620
GPU 2: NVIDIA Tesla K20c

Geekbench - OpenCL

GPU 1

GPU 2

6869

15597

CompuBench 1.5 Desktop - Face Detection (mPixels/s)

GPU 1

GPU 2

22.112

39.423

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

GPU 1

GPU 2

297.631

1427.15

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

GPU 1

GPU 2

1.427

4.128

CompuBench 1.5 Desktop - Video Composition (Frames/s)

GPU 1

GPU 2

15.363

64.383

CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)

GPU 1

GPU 2

99.125

179.044

Name	NVIDIA Quadro K620	NVIDIA Tesla K20c
PassMark - G3D Mark	2233
PassMark - G2D Mark	472
Geekbench - OpenCL	6869	15597
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	22.112	39.423
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	297.631	1427.15
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.427	4.128
CompuBench 1.5 Desktop - Video Composition (Frames/s)	15.363	64.383
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	99.125	179.044
GFXBench 4.0 - Car Chase Offscreen (Frames)	2970
GFXBench 4.0 - Manhattan (Frames)	2490
GFXBench 4.0 - T-Rex (Frames)	3329
GFXBench 4.0 - Car Chase Offscreen (Fps)	2970
GFXBench 4.0 - Manhattan (Fps)	2490
GFXBench 4.0 - T-Rex (Fps)	3329
3DMark Fire Strike - Graphics Score	702

Compare specifications (specs)

	NVIDIA Quadro K620	NVIDIA Tesla K20c
Essentials
Architecture	Maxwell	Kepler
Code name	GM107	GK110
Launch date	22 July 2014	12 November 2012
Launch price (MSRP)	$189.89	$3,199
Place in performance rating	974	976
Price now	$189.93
Type	Workstation	Workstation
Value for money (0-100)	15.23
Technical info
Boost clock speed	1124 MHz
Core clock speed	1058 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)	41 Watt	225 Watt
Transistor count	1,870 million	7,080 million
Video outputs and ports
Display Connectors	1x DVI, 1x DisplayPort, DVI-I DP	No outputs
Number of simultaneous displays	4
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	160 mm	267 mm
Supplementary power connectors	None	1x 6-pin + 1x 8-pin
Width	1" (2.5 cm)
API support
DirectX	12	12.0 (11_0)
OpenGL	4.5	4.6
Shader Model	5
Vulkan
Memory
Maximum RAM amount	2 GB	5 GB
Memory bus width	128 Bit	320 Bit
Memory clock speed	1800 MHz	5200 MHz
Memory type	128 Bit	GDDR5
Memory bandwidth		208.0 GB / s
Technologies
3D Vision Pro
Mosaic
nView Desktop Management