NVIDIA Tesla K20X vs AMD Radeon HD 7950M
GPU Specs Compare
Graphics Card
Release Date
Nov 2012
Apr 2012
Generation
Tesla
London
Type
Professional
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1300 MHz
1000 MHz
Memory
Memory Size
6GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
384bit
256bit
Bandwidth
249.6GB/s
128.0GB/s
Render Config
Shading Units
2688
1280
TMUs
224
80
ROPs
48
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1536 KB
512 KB
Compute Units
-
20
Theoretical Performance
Pixel Rate
40.99 GPixel/s
22.40 GPixel/s
Texture Rate
164.0 GTexel/s
56.00 GTexel/s
FP32 (float)
3.935 TFLOPS
1.792 TFLOPS
FP64 (double)
1312 GFLOPS
-
Graphics Processor
GPU Name
GK110
Wimbledon
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
2.8 billion
Die Size
561 mm²
212 mm²
GPU Variant
-
Wimbledon PRO
Board Design
TDP
235W
75W
Suggested PSU
550 W
-
Outputs
No outputs
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
-
Graphics Features
DirectX
12 (11_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
3.0
1.2
Vulkan
1.1
1.2
CUDA
3.5
-
Shader Model
5.1
5.1