NVIDIA Tesla K20X vs NVIDIA Tesla C2090
We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 6GB VRAM Tesla C2090 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 177.4GB/s)
2176 additional rendering cores
Lower TDP (235W vs 250W)
Score
Benchmark
FP32 (float)
Tesla K20X
+195%
3.935 TFLOPS
Tesla C2090
1.332 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
924 MHz
Memory
6GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
384bit
249.6GB/s
Bandwidth
177.4GB/s
Render Config
-
-
-
-
SM Count
16
2688
Shading Units
512
224
TMUs
64
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
20.83 GPixel/s
164.0 GTexel/s
Texture Rate
41.66 GTexel/s
-
-
-
3.935 TFLOPS
FP32 (float)
1332 GFLOPS
1312 GFLOPS
FP64 (double)
666.1 GFLOPS
Board Design
235W
TDP
250W
550 W
Suggested PSU
600 W
No outputs
Outputs
No outputs
1x 6-pin + 1x 8-pin
Power Connectors
-
Graphics Processor
GK110
GPU Name
GF110
-
-
-
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
