NVIDIA Tesla K20X vs NVIDIA Tesla C2075
We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 6GB VRAM Tesla C2075 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20X 's Advantages
Released 1 years and 4 months late
Larger VRAM bandwidth (249.6GB/s vs 150.3GB/s)
2240 additional rendering cores
Lower TDP (235W vs 247W)
Score
Benchmark
FP32 (float)
Tesla K20X
+282%
3.935 TFLOPS
Tesla C2075
1.028 TFLOPS
Graphics Card
Nov 2012
Release Date
Jul 2011
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 3.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
1300 MHz
Memory Clock
783 MHz
Memory
6GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
384bit
249.6GB/s
Bandwidth
150.3GB/s
Render Config
-
-
-
-
SM Count
14
2688
Shading Units
448
224
TMUs
56
48
ROPs
48
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
64 KB (per SM)
1536 KB
L2 Cache
768 KB
-
-
-
Theoretical Performance
40.99 GPixel/s
Pixel Rate
16.07 GPixel/s
164.0 GTexel/s
Texture Rate
32.14 GTexel/s
-
-
-
3.935 TFLOPS
FP32 (float)
1028 GFLOPS
1312 GFLOPS
FP64 (double)
513.9 GFLOPS
Board Design
235W
TDP
247W
550 W
Suggested PSU
550 W
No outputs
Outputs
1x DVI
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GK110
GPU Name
GF110
-
GPU Variant
GF110-351-A1
Kepler
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
28 nm
Process Size
40 nm
7.08 billion
Transistors
3 billion
561 mm²
Die Size
520 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
