NVIDIA Tesla K20c vs NVIDIA Tesla K20s

VS

NVIDIA Tesla K20c

NVIDIA Tesla K20s

We compared two Professional market GPUs: 5GB VRAM Tesla K20c and 5GB VRAM Tesla K20s to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Score

Benchmark

FP32 (float)

Tesla K20c +22%

3.524 TFLOPS

Tesla K20s

2.87 TFLOPS

Tesla K20c

VS

Tesla K20s

Graphics Card

Nov 2012

Release Date

Feb 2013

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1300 MHz

Memory Clock

1300 MHz

Memory

5GB

Memory Size

5GB

GDDR5

Memory Type

GDDR5

320bit

Memory Bus

320bit

208.0GB/s

Bandwidth

208.0GB/s

Render Config

-

2496

Shading Units

2496

208

TMUs

208

40

ROPs

40

-

16 KB (per SMX)

L1 Cache

16 KB (per SMX)

1280 KB

L2 Cache

1280 KB

-

Theoretical Performance

36.71 GPixel/s

Pixel Rate

29.90 GPixel/s

146.8 GTexel/s

Texture Rate

119.6 GTexel/s

-

3.524 TFLOPS

FP32 (float)

2.870 TFLOPS

1175 GFLOPS

FP64 (double)

956.8 GFLOPS

Board Design

225W

TDP

225W

550 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

GK110

GPU Name

GK110

GK110-885-KA-A1

GPU Variant

-

Kepler

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

7.08 billion

Transistors

7.08 billion

561 mm²

Die Size

561 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.1

3.5

CUDA

3.5

5.1

Shader Model

5.1

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