Tesla C2070 vs Tesla K20c
We compared two Professional market GPUs: 6GB VRAM Tesla C2070 and 5GB VRAM Tesla K20c to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Tesla C2070 Advantages
More VRAM (6GB vs 5GB)
Tesla K20c Advantages
Released 1 years and 4 months late
Larger VRAM bandwidth (208.0GB/s vs 143.4GB/s)
2048 additional rendering cores
Lower TDP (225W vs 238W)
Score
Benchmark
FP32 (float)
Tesla C2070
1028
Tesla K20c
+242%
3524
Graphics Card
Jul 2011
Release Date
Nov 2012
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
747 MHz
Memory Clock
1300 MHz
Memory
6GB
Memory Size
5GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
320bit
143.4GB/s
Bandwidth
208.0GB/s
Render Config
14
SM Count
-
448
Shading Units
2496
56
TMUs
208
48
ROPs
40
64 KB (per SM)
L1 Cache
16 KB (per SMX)
768 KB
L2 Cache
1280 KB
Theoretical Performance
16.07 GPixel/s
Pixel Rate
36.71 GPixel/s
32.14 GTexel/s
Texture Rate
146.8 GTexel/s
1028 GFLOPS
FP32 (float)
3.524 TFLOPS
513.9 GFLOPS
FP64 (double)
1175 GFLOPS
Board Design
238W
TDP
225W
550 W
Suggested PSU
550 W
1x DVI
Outputs
No outputs
1x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GF100
GPU Name
GK110
-
GPU Variant
GK110-885-KA-A1
Fermi
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
3.1 billion
Transistors
7.08 billion
529 mm²
Die Size
561 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.1
OpenCL
3.0
N/A
Vulkan
1.1
2.0
CUDA
3.5
5.1
Shader Model
5.1
