NVIDIA Tesla K20m vs AMD Radeon HD 6850 1440SP Edition
GPU Specs Compare
Graphics Card
Release Date
Jan 2013
Aug 2012
Generation
Tesla
Northern Islands
Type
Professional
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1300 MHz
1000 MHz
Memory
Memory Size
5GB
1024MB
Memory Type
GDDR5
GDDR5
Memory Bus
320bit
256bit
Bandwidth
208.0GB/s
128.0GB/s
Render Config
Shading Units
2496
1440
TMUs
208
72
ROPs
40
32
L1 Cache
16 KB (per SMX)
8 KB (per CU)
L2 Cache
1280 KB
512 KB
Compute Units
-
18
Theoretical Performance
Pixel Rate
36.71 GPixel/s
23.20 GPixel/s
Texture Rate
146.8 GTexel/s
52.20 GTexel/s
FP32 (float)
3.524 TFLOPS
2.088 TFLOPS
FP64 (double)
1175 GFLOPS
417.6 GFLOPS
Graphics Processor
GPU Name
GK110
Cypress
Architecture
Kepler
TeraScale 2
Foundry
TSMC
TSMC
Process Size
28 nm
40 nm
Transistors
7.08 billion
2.154 billion
Die Size
561 mm²
334 mm²
GPU Variant
-
Cypress PRO(215-0735043)
Board Design
TDP
225W
151W
Suggested PSU
550 W
450 W
Outputs
No outputs
2x DVI1x HDMI 1.3a1x DisplayPort 1.1
Power Connectors
1x 6-pin + 1x 8-pin
2x 6-pin
Graphics Features
DirectX
12 (11_0)
11.2 (11_0)
OpenGL
4.6
4.4
OpenCL
3.0
1.2
Vulkan
1.1
N/A
CUDA
3.5
-
Shader Model
5.1
5.0