NVIDIA Quadro P400 vs NVIDIA Tesla K20X

VS

NVIDIA Quadro P400

NVIDIA Tesla K20X

We compared two Professional market GPUs: 2GB VRAM Quadro P400 and 6GB VRAM Tesla K20X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro P400 's Advantages

Released 4 years and 3 months late

Boost Clock1252MHz

Lower TDP (30W vs 235W)

NVIDIA Tesla K20X 's Advantages

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (249.6GB/s vs 32.06GB/s)

2432 additional rendering cores

Score

Benchmark

FP32 (float)

Quadro P400

0.641 TFLOPS

Tesla K20X +513%

3.935 TFLOPS

Quadro P400

VS

Tesla K20X

Graphics Card

Feb 2017

Release Date

Nov 2012

Quadro

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1228 MHz

Base Clock

-

1252 MHz

Boost Clock

-

1002 MHz

Memory Clock

1300 MHz

Memory

2GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

384bit

32.06GB/s

Bandwidth

249.6GB/s

Render Config

-

2

SM Count

-

256

Shading Units

2688

16

TMUs

224

16

ROPs

48

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1536 KB

-

Theoretical Performance

20.03 GPixel/s

Pixel Rate

40.99 GPixel/s

20.03 GTexel/s

Texture Rate

164.0 GTexel/s

10.02 GFLOPS

FP16 (half)

-

641.0 GFLOPS

FP32 (float)

3.935 TFLOPS

20.03 GFLOPS

FP64 (double)

1312 GFLOPS

Board Design

30W

TDP

235W

200 W

Suggested PSU

550 W

3x mini-DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GP107

GPU Name

GK110

GP107-825-KA-A1

GPU Variant

-

Pascal

Architecture

Kepler

Samsung

Foundry

TSMC

14 nm

Process Size

28 nm

3.3 billion

Transistors

7.08 billion

132 mm²

Die Size

561 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

6.1

CUDA

3.5

6.4

Shader Model

5.1

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