Tesla K20s vs Tesla C2070
We compared two Professional market GPUs: 5GB VRAM Tesla K20s and 6GB VRAM Tesla C2070 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Tesla K20s 's Advantages
Released 1 years and 7 months late
Larger VRAM bandwidth (208.0GB/s vs 143.4GB/s)
2048 additional rendering cores
Lower TDP (225W vs 238W)
Tesla C2070 's Advantages
More VRAM (6GB vs 5GB)
Score
Benchmark
FP32 (float)
Tesla K20s
+179%
2870
Tesla C2070
1028
Graphics Card
Feb 2013
Release Date
Jul 2011
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
1300 MHz
Memory Clock
747 MHz
Memory
5GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
320bit
Memory Bus
384bit
208.0GB/s
Bandwidth
143.4GB/s
Render Config
-
SM Count
14
2496
Shading Units
448
208
TMUs
56
40
ROPs
48
16 KB (per SMX)
L1 Cache
64 KB (per SM)
1280 KB
L2 Cache
768 KB
Theoretical Performance
29.90 GPixel/s
Pixel Rate
16.07 GPixel/s
119.6 GTexel/s
Texture Rate
32.14 GTexel/s
2.870 TFLOPS
FP32 (float)
1028 GFLOPS
956.8 GFLOPS
FP64 (double)
513.9 GFLOPS
Board Design
225W
TDP
238W
550 W
Suggested PSU
550 W
No outputs
Outputs
1x DVI
-
Power Connectors
1x 8-pin
Graphics Processor
GK110
GPU Name
GF100
Kepler
Architecture
Fermi
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
7.08 billion
Transistors
3.1 billion
561 mm²
Die Size
529 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.5
CUDA
2.0
5.1
Shader Model
5.1
