NVIDIA Tesla K20c vs NVIDIA Tesla K20Xm
GPU Specs Compare
Graphics Card
Release Date
Nov 2012
Nov 2012
Generation
Tesla
Tesla
Type
Professional
Professional
Bus Interface
PCIe 2.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1300 MHz
1300 MHz
Memory
Memory Size
5GB
6GB
Memory Type
GDDR5
GDDR5
Memory Bus
320bit
384bit
Bandwidth
208.0GB/s
249.6GB/s
Render Config
Shading Units
2496
2688
TMUs
208
224
ROPs
40
48
L1 Cache
16 KB (per SMX)
16 KB (per SMX)
L2 Cache
1280 KB
1536 KB
Theoretical Performance
Pixel Rate
36.71 GPixel/s
40.99 GPixel/s
Texture Rate
146.8 GTexel/s
164.0 GTexel/s
FP32 (float)
3.524 TFLOPS
3.935 TFLOPS
FP64 (double)
1175 GFLOPS
1312 GFLOPS
Graphics Processor
GPU Name
GK110
GK110
GPU Variant
GK110-885-KA-A1
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Architecture
Kepler
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
7.08 billion
7.08 billion
Die Size
561 mm²
561 mm²
Board Design
TDP
225W
235W
Suggested PSU
550 W
550 W
Outputs
No outputs
No outputs
Power Connectors
1x 6-pin + 1x 8-pin
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Graphics Features
DirectX
12 (11_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.1
CUDA
3.5
3.5
Shader Model
5.1
5.1
📊 Benchmark
OctaneBench
55
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