NVIDIA Tesla K20X vs NVIDIA Tesla S1075

VS

NVIDIA Tesla K20X

NVIDIA Tesla S1075

We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 4GB VRAM Tesla S1075 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20X 's Advantages

Released 4 years and 5 months late

More VRAM (6GB vs 4GB)

Larger VRAM bandwidth (249.6GB/s vs 102.4GB/s)

2448 additional rendering cores

Lower TDP (235W vs 800W)

Score

Benchmark

FP32 (float)

Tesla K20X +532%

3.935 TFLOPS

Tesla S1075

0.622 TFLOPS

Tesla K20X

VS

Tesla S1075

Graphics Card

Nov 2012

Release Date

Jun 2008

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1300 MHz

Memory Clock

800 MHz

Memory

6GB

Memory Size

4GB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

512bit

249.6GB/s

Bandwidth

102.4GB/s

Render Config

-

SM Count

30

2688

Shading Units

240

224

TMUs

80

48

ROPs

32

-

16 KB (per SMX)

L1 Cache

-

1536 KB

L2 Cache

256 KB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

19.52 GPixel/s

164.0 GTexel/s

Texture Rate

48.80 GTexel/s

-

3.935 TFLOPS

FP32 (float)

622.1 GFLOPS

1312 GFLOPS

FP64 (double)

77.76 GFLOPS

Board Design

235W

TDP

800W

550 W

Suggested PSU

1200 W

No outputs

Outputs

No outputs

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Processor

GK110

GPU Name

GT200B

-

Kepler

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

7.08 billion

Transistors

1.4 billion

561 mm²

Die Size

470 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

1.3

5.1

Shader Model

4.0

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