NVIDIA Quadro P400 vs NVIDIA Tesla K20c

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We compared two Professional market GPUs: 2GB VRAM Quadro P400 and 5GB VRAM Tesla K20c 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 225W)

NVIDIA Tesla K20c 's Advantages

More VRAM (5GB vs 2GB)

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

2240 additional rendering cores

Score

Benchmark

FP32 (float)

Quadro P400

0.641 TFLOPS

Tesla K20c +449%

3.524 TFLOPS

OctaneBench

Quadro P400

9

Tesla K20c +511%

55

Quadro P400

VS

Tesla K20c

Graphics Card

Feb 2017

Release Date

Nov 2012

Quadro

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1228 MHz

Base Clock

-

1252 MHz

Boost Clock

-

1002 MHz

Memory Clock

1300 MHz

Memory

2GB

Memory Size

5GB

GDDR5

Memory Type

GDDR5

64bit

Memory Bus

320bit

32.06GB/s

Bandwidth

208.0GB/s

Render Config

2

SM Count

-

Compute Units

-

256

Shading Units

2496

16

TMUs

208

16

ROPs

40

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

512 KB

L2 Cache

1280 KB

Theoretical Performance

20.03 GPixel/s

Pixel Rate

36.71 GPixel/s

20.03 GTexel/s

Texture Rate

146.8 GTexel/s

10.02 GFLOPS

FP16 (half)

-

641.0 GFLOPS

FP32 (float)

3.524 TFLOPS

20.03 GFLOPS

FP64 (double)

1175 GFLOPS

Graphics Processor

GP107

GPU Name

GK110

GP107-825-KA-A1

GPU Variant

GK110-885-KA-A1

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

Board Design

30W

TDP

225W

200 W

Suggested PSU

550 W

3x mini-DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

1x 6-pin + 1x 8-pin

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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