NVIDIA Tesla K20X vs NVIDIA Tesla X2070

VS

NVIDIA Tesla K20X

NVIDIA Tesla X2070

We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 6GB VRAM Tesla X2070 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20X 's Advantages

Released 1 years and 4 months late

Larger VRAM bandwidth (249.6GB/s vs 177.4GB/s)

2240 additional rendering cores

NVIDIA Tesla X2070 's Advantages

Lower TDP (225W vs 235W)

Score

Benchmark

FP32 (float)

Tesla K20X +237%

3.935 TFLOPS

Tesla X2070

1.166 TFLOPS

Tesla K20X

VS

Tesla X2070

Graphics Card

Nov 2012

Release Date

Jul 2011

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

MXM-B (3.0)

Clock Speeds

-

1300 MHz

Memory Clock

924 MHz

Memory

6GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

249.6GB/s

Bandwidth

177.4GB/s

Render Config

-

SM Count

14

2688

Shading Units

448

224

TMUs

56

48

ROPs

48

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

1536 KB

L2 Cache

768 KB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

18.23 GPixel/s

164.0 GTexel/s

Texture Rate

36.46 GTexel/s

-

3.935 TFLOPS

FP32 (float)

1166 GFLOPS

1312 GFLOPS

FP64 (double)

582.8 GFLOPS

Board Design

235W

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

GF100

-

GPU Variant

GF100-876-A3

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

7.08 billion

Transistors

3.1 billion

561 mm²

Die Size

529 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.5

CUDA

2.0

5.1

Shader Model

5.1

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