NVIDIA Tesla S1075 vs NVIDIA Tesla K20c

VS

NVIDIA Tesla S1075

NVIDIA Tesla K20c

We compared two Professional market GPUs: 4GB VRAM Tesla S1075 and 5GB VRAM Tesla K20c to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20c 's Advantages

Released 4 years and 5 months late

More VRAM (5GB vs 4GB)

Larger VRAM bandwidth (208.0GB/s vs 102.4GB/s)

2256 additional rendering cores

Lower TDP (225W vs 800W)

Score

Benchmark

FP32 (float)

Tesla S1075

0.622 TFLOPS

Tesla K20c +466%

3.524 TFLOPS

Tesla S1075

VS

Tesla K20c

Graphics Card

Jun 2008

Release Date

Nov 2012

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1300 MHz

Memory

4GB

Memory Size

5GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

320bit

102.4GB/s

Bandwidth

208.0GB/s

Render Config

-

30

SM Count

-

240

Shading Units

2496

80

TMUs

208

32

ROPs

40

-

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

1280 KB

-

Theoretical Performance

19.52 GPixel/s

Pixel Rate

36.71 GPixel/s

48.80 GTexel/s

Texture Rate

146.8 GTexel/s

-

622.1 GFLOPS

FP32 (float)

3.524 TFLOPS

77.76 GFLOPS

FP64 (double)

1175 GFLOPS

Board Design

800W

TDP

225W

1200 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GT200B

GPU Name

GK110

-

GPU Variant

GK110-885-KA-A1

Tesla 2.0

Architecture

Kepler

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

1.4 billion

Transistors

7.08 billion

470 mm²

Die Size

561 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

1.3

CUDA

3.5

4.0

Shader Model

5.1

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