NVIDIA Tesla S1070 vs NVIDIA Tesla K20Xm

VS

NVIDIA Tesla S1070

NVIDIA Tesla K20Xm

We compared two Professional market GPUs: 4GB VRAM Tesla S1070 and 6GB VRAM Tesla K20Xm to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20Xm '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 S1070

0.622 TFLOPS

Tesla K20Xm +532%

3.935 TFLOPS

Tesla S1070

VS

Tesla K20Xm

Graphics Card

Jun 2008

Release Date

Nov 2012

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1300 MHz

Memory

4GB

Memory Size

6GB

GDDR3

Memory Type

GDDR5

512bit

Memory Bus

384bit

102.4GB/s

Bandwidth

249.6GB/s

Render Config

-

30

SM Count

-

240

Shading Units

2688

80

TMUs

224

32

ROPs

48

-

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

1536 KB

-

Theoretical Performance

19.52 GPixel/s

Pixel Rate

40.99 GPixel/s

48.80 GTexel/s

Texture Rate

164.0 GTexel/s

-

622.1 GFLOPS

FP32 (float)

3.935 TFLOPS

77.76 GFLOPS

FP64 (double)

1312 GFLOPS

Board Design

800W

TDP

235W

1200 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

-

Graphics Processor

GT200B

GPU Name

GK110

-

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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