NVIDIA Tesla C2070 vs NVIDIA Tesla K20Xm

VS

NVIDIA Tesla C2070

NVIDIA Tesla K20Xm

We compared two Professional market GPUs: 6GB VRAM Tesla C2070 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 1 years and 4 months late

Larger VRAM bandwidth (249.6GB/s vs 143.4GB/s)

2240 additional rendering cores

Lower TDP (235W vs 238W)

Score

Benchmark

FP32 (float)

Tesla C2070

1.028 TFLOPS

Tesla K20Xm +282%

3.935 TFLOPS

Tesla C2070

VS

Tesla K20Xm

Graphics Card

Jul 2011

Release Date

Nov 2012

Tesla

Generation

Tesla

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

747 MHz

Memory Clock

1300 MHz

Memory

6GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

143.4GB/s

Bandwidth

249.6GB/s

Render Config

-

14

SM Count

-

448

Shading Units

2688

56

TMUs

224

48

ROPs

48

-

64 KB (per SM)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

1536 KB

-

Theoretical Performance

16.07 GPixel/s

Pixel Rate

40.99 GPixel/s

32.14 GTexel/s

Texture Rate

164.0 GTexel/s

-

1028 GFLOPS

FP32 (float)

3.935 TFLOPS

513.9 GFLOPS

FP64 (double)

1312 GFLOPS

Board Design

238W

TDP

235W

550 W

Suggested PSU

550 W

1x DVI

Outputs

No outputs

1x 8-pin

Power Connectors

-

Graphics Processor

GF100

GPU Name

GK110

-

Fermi

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

3.1 billion

Transistors

7.08 billion

529 mm²

Die Size

561 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

2.0

CUDA

3.5

5.1

Shader Model

5.1

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