NVIDIA Tesla C2090 vs NVIDIA Tesla K20m
We compared two Professional market GPUs: 6GB VRAM Tesla C2090 and 5GB VRAM Tesla K20m to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA Tesla C2090 's Advantages
More VRAM (6GB vs 5GB)
NVIDIA Tesla K20m 's Advantages
Released 1 years and 6 months late
Larger VRAM bandwidth (208.0GB/s vs 177.4GB/s)
1984 additional rendering cores
Lower TDP (225W vs 250W)
Score
Benchmark
FP32 (float)
Tesla C2090
1.332 TFLOPS
Tesla K20m
+164%
3.524 TFLOPS
Graphics Card
Jul 2011
Release Date
Jan 2013
Tesla
Generation
Tesla
Professional
Type
Professional
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
924 MHz
Memory Clock
1300 MHz
Memory
6GB
Memory Size
5GB
GDDR5
Memory Type
GDDR5
384bit
Memory Bus
320bit
177.4GB/s
Bandwidth
208.0GB/s
Render Config
-
-
-
16
SM Count
-
512
Shading Units
2496
64
TMUs
208
48
ROPs
40
-
-
-
-
-
-
64 KB (per SM)
L1 Cache
16 KB (per SMX)
768 KB
L2 Cache
1280 KB
-
-
-
Theoretical Performance
20.83 GPixel/s
Pixel Rate
36.71 GPixel/s
41.66 GTexel/s
Texture Rate
146.8 GTexel/s
-
-
-
1332 GFLOPS
FP32 (float)
3.524 TFLOPS
666.1 GFLOPS
FP64 (double)
1175 GFLOPS
Board Design
250W
TDP
225W
600 W
Suggested PSU
550 W
No outputs
Outputs
No outputs
-
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GF110
GPU Name
GK110
-
-
-
Fermi 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
3 billion
Transistors
7.08 billion
520 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
