NVIDIA Tesla K20s vs NVIDIA Quadro P400

VS

We compared two Professional market GPUs: 5GB VRAM Tesla K20s and 2GB VRAM Quadro P400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20s 's Advantages

More VRAM (5GB vs 2GB)

Larger VRAM bandwidth (208.0GB/s vs 32.06GB/s)

2240 additional rendering cores

NVIDIA Quadro P400 's Advantages

Released 4 years late

Boost Clock1252MHz

Lower TDP (30W vs 225W)

Score

Benchmark

FP32 (float)

Tesla K20s +347%

2.87 TFLOPS

Quadro P400

0.641 TFLOPS

Tesla K20s

VS

Quadro P400

Graphics Card

Feb 2013

Release Date

Feb 2017

Tesla

Generation

Quadro

Professional

Type

Professional

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1228 MHz

-

Boost Clock

1252 MHz

1300 MHz

Memory Clock

1002 MHz

Memory

5GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

320bit

Memory Bus

64bit

208.0GB/s

Bandwidth

32.06GB/s

Render Config

-

SM Count

2

-

Compute Units

-

2496

Shading Units

256

208

TMUs

16

40

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

1280 KB

L2 Cache

512 KB

Theoretical Performance

29.90 GPixel/s

Pixel Rate

20.03 GPixel/s

119.6 GTexel/s

Texture Rate

20.03 GTexel/s

-

FP16 (half)

10.02 GFLOPS

2.870 TFLOPS

FP32 (float)

641.0 GFLOPS

956.8 GFLOPS

FP64 (double)

20.03 GFLOPS

Graphics Processor

GK110

GPU Name

GP107

-

GPU Variant

GP107-825-KA-A1

Kepler

Architecture

Pascal

TSMC

Foundry

Samsung

28 nm

Process Size

14 nm

7.08 billion

Transistors

3.3 billion

561 mm²

Die Size

132 mm²

Board Design

225W

TDP

30W

550 W

Suggested PSU

200 W

No outputs

Outputs

3x mini-DisplayPort 1.4a

-

Power Connectors

None

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.5

CUDA

6.1

5.1

Shader Model

6.4

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