NVIDIA Tesla K20s vs NVIDIA Tesla C2090
We compared two Professional market GPUs: 5GB VRAM Tesla K20s and 6GB VRAM Tesla C2090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla K20s 's Advantages
Released 1 years and 7 months late
Larger VRAM bandwidth (208.0GB/s vs 177.4GB/s)
1984 additional rendering cores
Lower TDP (225W vs 250W)
NVIDIA Tesla C2090 's Advantages
More VRAM (6GB vs 5GB)
Score
Benchmark
FP32 (float)
Tesla K20s
+115%
2.87 TFLOPS
Tesla C2090
1.332 TFLOPS
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
924 MHz
Memory
5GB
Memory Size
6GB
GDDR5
Memory Type
GDDR5
320bit
Memory Bus
384bit
208.0GB/s
Bandwidth
177.4GB/s
Render Config
-
-
-
-
SM Count
16
2496
Shading Units
512
208
TMUs
64
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
20.83 GPixel/s
119.6 GTexel/s
Texture Rate
41.66 GTexel/s
-
-
-
2.870 TFLOPS
FP32 (float)
1332 GFLOPS
956.8 GFLOPS
FP64 (double)
666.1 GFLOPS
Board Design
225W
TDP
250W
550 W
Suggested PSU
600 W
No outputs
Outputs
No outputs
-
-
-
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
