AMD Radeon HD 6950 vs NVIDIA Tesla K20c
GPU Specs Compare
Graphics Card
Release Date
Dec 2010
Nov 2012
Generation
Northern Islands
Tesla
Type
Desktop
Professional
Bus Interface
PCIe 2.0 x16
PCIe 2.0 x16
Clock Speeds
Memory Clock
1250 MHz
1300 MHz
Memory
Memory Size
2GB
5GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
320bit
Bandwidth
160.0GB/s
208.0GB/s
Render Config
Compute Units
22
-
Shading Units
1408
2496
TMUs
88
208
ROPs
32
40
L1 Cache
8 KB (per CU)
16 KB (per SMX)
L2 Cache
512 KB
1280 KB
Theoretical Performance
Pixel Rate
25.60 GPixel/s
36.71 GPixel/s
Texture Rate
70.40 GTexel/s
146.8 GTexel/s
FP32 (float)
2.253 TFLOPS
3.524 TFLOPS
FP64 (double)
563.2 GFLOPS
1175 GFLOPS
Graphics Processor
GPU Name
Cayman
GK110
GPU Variant
Cayman PRO(215-0807019)
GK110-885-KA-A1
Architecture
TeraScale 3
Kepler
Foundry
TSMC
TSMC
Process Size
40 nm
28 nm
Transistors
2.64 billion
7.08 billion
Die Size
389 mm²
561 mm²
Board Design
TDP
200W
225W
Suggested PSU
550 W
550 W
Outputs
2x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
11.2 (11_0)
12 (11_0)
OpenGL
4.4
4.6
OpenCL
1.2
3.0
Vulkan
N/A
1.1
Shader Model
5.0
5.1
CUDA
-
3.5
📊 Benchmark
OctaneBench
-
55