NVIDIA Tesla K20s vs AMD Radeon HD 7970 GHz Edition
GPU Specs Compare
Graphics Card
Release Date
Feb 2013
Jun 2012
Generation
Tesla
Southern Islands
Type
Professional
Desktop
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1300 MHz
1500 MHz
Base Clock
-
1000 MHz
Boost Clock
-
1050 MHz
Memory
Memory Size
5GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
320bit
384bit
Bandwidth
208.0GB/s
288.0GB/s
Render Config
Shading Units
2496
2048
TMUs
208
128
ROPs
40
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
1280 KB
768 KB
Compute Units
-
32
Theoretical Performance
Pixel Rate
29.90 GPixel/s
33.60 GPixel/s
Texture Rate
119.6 GTexel/s
134.4 GTexel/s
FP32 (float)
2.870 TFLOPS
4.301 TFLOPS
FP64 (double)
956.8 GFLOPS
1075 GFLOPS
Graphics Processor
GPU Name
GK110
Tahiti
Architecture
Kepler
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
4.313 billion
Die Size
561 mm²
352 mm²
GPU Variant
-
Tahiti XT2(215-0821065)
Board Design
TDP
225W
300W
Suggested PSU
550 W
700 W
Outputs
No outputs
1x DVI1x HDMI 1.4a2x mini-DisplayPort 1.2
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