NVIDIA Quadro K620 vs AMD Radeon HD 6850 X2

Comparative analysis of NVIDIA Quadro K620 and AMD Radeon HD 6850 X2 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

AMD Radeon HD 6850 X2

Differences

Reasons to consider the NVIDIA Quadro K620

Videocard is newer: launch date 2 year(s) 10 month(s) later
Around 32% higher core clock speed: 1058 MHz vs 800 MHz
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
6.2x lower typical power consumption: 41 Watt vs 254 Watt
Around 29% better performance in PassMark - G2D Mark: 480 vs 373
Around 73% better performance in Geekbench - OpenCL: 6869 vs 3977
Around 81% better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 1.427 vs 0.789

Specifications (specs)
Launch date	22 July 2014 vs 19 September 2011
Core clock speed	1058 MHz vs 800 MHz
Manufacturing process technology	28 nm vs 40 nm
Thermal Design Power (TDP)	41 Watt vs 254 Watt
Benchmarks
PassMark - G2D Mark	480 vs 373
Geekbench - OpenCL	6869 vs 3977
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.427 vs 0.789

Reasons to consider the AMD Radeon HD 6850 X2

13.3x more texture fill rate: 2x 38.4 GTexel / s billion / sec vs 17.98 GTexel / s
5x more pipelines: 2x 960 vs 384
3.6x better floating-point performance: 2x 1,536.0 gflops vs 863.2 gflops
2x more maximum memory size: 2x 2 GB vs 2 GB
2.3x more memory clock speed: 4200 MHz vs 1800 MHz
Around 14% better performance in PassMark - G3D Mark: 2534 vs 2220

Specifications (specs)
Texture fill rate	2x 38.4 GTexel / s billion / sec vs 17.98 GTexel / s
Pipelines	2x 960 vs 384
Floating-point performance	2x 1,536.0 gflops vs 863.2 gflops
Maximum memory size	2x 2 GB vs 2 GB
Memory clock speed	4200 MHz vs 1800 MHz
Benchmarks
PassMark - G3D Mark	2534 vs 2220

Compare benchmarks

GPU 1: NVIDIA Quadro K620
GPU 2: AMD Radeon HD 6850 X2

PassMark - G3D Mark

GPU 1

GPU 2

2220

2534

PassMark - G2D Mark

GPU 1

GPU 2

480

373

Geekbench - OpenCL

GPU 1

GPU 2

6869

3977

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

GPU 1

GPU 2

1.427

0.789

Name	NVIDIA Quadro K620	AMD Radeon HD 6850 X2
PassMark - G3D Mark	2220	2534
PassMark - G2D Mark	480	373
Geekbench - OpenCL	6869	3977
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	22.112
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	297.631
CompuBench 1.5 Desktop - T-Rex (Frames/s)	1.427	0.789
CompuBench 1.5 Desktop - Video Composition (Frames/s)	15.363
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	99.125
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	AMD Radeon HD 6850 X2
Essentials
Architecture	Maxwell	TeraScale 2
Code name	GM107	Barts
Launch date	22 July 2014	19 September 2011
Launch price (MSRP)	$189.89
Place in performance rating	953	741
Price now	$189.93
Type	Workstation	Desktop
Value for money (0-100)	15.23
Technical info
Boost clock speed	1124 MHz
Core clock speed	1058 MHz	800 MHz
Floating-point performance	863.2 gflops	2x 1,536.0 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	384	2x 960
Texture fill rate	17.98 GTexel / s	2x 38.4 GTexel / s billion / sec
Thermal Design Power (TDP)	41 Watt	254 Watt
Transistor count	1,870 million	1,700 million
Video outputs and ports
Display Connectors	1x DVI, 1x DisplayPort, DVI-I DP	2x DVI, 1x HDMI, 1x DisplayPort
Number of simultaneous displays	4
Compatibility, dimensions and requirements
Interface	PCIe 2.0 x16	PCIe 2.0 x16
Length	160 mm
Supplementary power connectors	None	2x 8-pin
Width	1" (2.5 cm)
API support
DirectX	12	11.2 (11_0)
OpenGL	4.5	4.4
Shader Model	5
Vulkan
Memory
Maximum RAM amount	2 GB	2x 2 GB
Memory bus width	128 Bit	2x 256 Bit
Memory clock speed	1800 MHz	4200 MHz
Memory type	128 Bit	GDDR5
Memory bandwidth		2x 134.4 GB / s
Technologies
3D Vision Pro
Mosaic
nView Desktop Management