NVIDIA GRID K520 vs AMD Radeon HD 6850 X2

Comparative analysis of NVIDIA GRID K520 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. 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).

NVIDIA GRID K520

AMD Radeon HD 6850 X2

Differences

Reasons to consider the NVIDIA GRID K520

Videocard is newer: launch date 1 year(s) 10 month(s) later
8.8x more texture fill rate: 2x 102.0 GTexel / s billion / sec vs 2x 38.4 GTexel / s billion / sec
Around 60% higher pipelines: 2x 1536 vs 2x 960
Around 59% better floating-point performance: 2x 2,448 gflops vs 2x 1,536.0 gflops
A newer manufacturing process allows for a more powerful, yet cooler running videocard: 28 nm vs 40 nm
Around 13% lower typical power consumption: 225 Watt vs 254 Watt
2x more maximum memory size: 2x 4 GB vs 2x 2 GB
Around 19% higher memory clock speed: 5000 MHz vs 4200 MHz
Around 39% better performance in PassMark - G3D Mark: 3516 vs 2534
2.7x better performance in Geekbench - OpenCL: 10864 vs 3977
4.1x better performance in CompuBench 1.5 Desktop - T-Rex (Frames/s): 3.244 vs 0.789

Specifications (specs)
Launch date	23 July 2013 vs 19 September 2011
Texture fill rate	2x 102.0 GTexel / s billion / sec vs 2x 38.4 GTexel / s billion / sec
Pipelines	2x 1536 vs 2x 960
Floating-point performance	2x 2,448 gflops vs 2x 1,536.0 gflops
Manufacturing process technology	28 nm vs 40 nm
Thermal Design Power (TDP)	225 Watt vs 254 Watt
Maximum memory size	2x 4 GB vs 2x 2 GB
Memory clock speed	5000 MHz vs 4200 MHz
Benchmarks
PassMark - G3D Mark	3516 vs 2534
Geekbench - OpenCL	10864 vs 3977
CompuBench 1.5 Desktop - T-Rex (Frames/s)	3.244 vs 0.789

Reasons to consider the AMD Radeon HD 6850 X2

Around 7% higher core clock speed: 800 MHz vs 745 MHz
2.3x better performance in PassMark - G2D Mark: 373 vs 160

Specifications (specs)
Core clock speed	800 MHz vs 745 MHz
Benchmarks
PassMark - G2D Mark	373 vs 160

Compare benchmarks

GPU 1: NVIDIA GRID K520
GPU 2: AMD Radeon HD 6850 X2

PassMark - G3D Mark

GPU 1

GPU 2

3516

2534

PassMark - G2D Mark

GPU 1

GPU 2

160

373

Geekbench - OpenCL

GPU 1

GPU 2

10864

3977

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

GPU 1

GPU 2

3.244

0.789

Name	NVIDIA GRID K520	AMD Radeon HD 6850 X2
PassMark - G3D Mark	3516	2534
PassMark - G2D Mark	160	373
Geekbench - OpenCL	10864	3977
CompuBench 1.5 Desktop - Face Detection (mPixels/s)	20.97
CompuBench 1.5 Desktop - Ocean Surface Simulation (Frames/s)	1063.784
CompuBench 1.5 Desktop - T-Rex (Frames/s)	3.244	0.789
CompuBench 1.5 Desktop - Video Composition (Frames/s)	42.277
CompuBench 1.5 Desktop - Bitcoin Mining (mHash/s)	76.158
GFXBench 4.0 - Car Chase Offscreen (Frames)	6782
GFXBench 4.0 - Manhattan (Frames)	3713
GFXBench 4.0 - T-Rex (Frames)	3354
GFXBench 4.0 - Car Chase Offscreen (Fps)	6782
GFXBench 4.0 - Manhattan (Fps)	3713
GFXBench 4.0 - T-Rex (Fps)	3354

Compare specifications (specs)

	NVIDIA GRID K520	AMD Radeon HD 6850 X2
Essentials
Architecture	Kepler	TeraScale 2
Code name	GK104	Barts
Launch date	23 July 2013	19 September 2011
Launch price (MSRP)	$3,599
Place in performance rating	738	741
Type	Workstation	Desktop
Technical info
Core clock speed	745 MHz	800 MHz
Floating-point performance	2x 2,448 gflops	2x 1,536.0 gflops
Manufacturing process technology	28 nm	40 nm
Pipelines	2x 1536	2x 960
Texture fill rate	2x 102.0 GTexel / s billion / sec	2x 38.4 GTexel / s billion / sec
Thermal Design Power (TDP)	225 Watt	254 Watt
Transistor count	3,540 million	1,700 million
Video outputs and ports
Display Connectors	No outputs	2x DVI, 1x HDMI, 1x DisplayPort
Compatibility, dimensions and requirements
Interface	PCIe 3.0 x16	PCIe 2.0 x16
Length	267 mm
Supplementary power connectors	1x 8-pin	2x 8-pin
API support
DirectX	12.0 (11_0)	11.2 (11_0)
OpenGL	4.6	4.4
Memory
Maximum RAM amount	2x 4 GB	2x 2 GB
Memory bandwidth	2x 160.0 GB / s	2x 134.4 GB / s
Memory bus width	2x 256 Bit	2x 256 Bit
Memory clock speed	5000 MHz	4200 MHz
Memory type	GDDR5	GDDR5