NVIDIA Tesla K20X vs NVIDIA Quadro P620

VS

NVIDIA Tesla K20X

NVIDIA Quadro P620

We compared two Professional market GPUs: 6GB VRAM Tesla K20X and 2GB VRAM Quadro P620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Tesla K20X 's Advantages

More VRAM (6GB vs 2GB)

Larger VRAM bandwidth (249.6GB/s vs 80.13GB/s)

2176 additional rendering cores

NVIDIA Quadro P620 's Advantages

Released 5 years and 3 months late

Boost Clock1354MHz

Lower TDP (40W vs 235W)

Score

Benchmark

FP32 (float)

Tesla K20X +183%

3.935 TFLOPS

Quadro P620

1.386 TFLOPS

Tesla K20X

VS

Quadro P620

Graphics Card

Nov 2012

Release Date

Feb 2018

Tesla

Generation

Quadro

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1266 MHz

-

Boost Clock

1354 MHz

1300 MHz

Memory Clock

1252 MHz

Memory

6GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

249.6GB/s

Bandwidth

80.13GB/s

Render Config

-

SM Count

4

2688

Shading Units

512

224

TMUs

32

48

ROPs

16

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

1536 KB

L2 Cache

1024 KB

-

Theoretical Performance

40.99 GPixel/s

Pixel Rate

21.66 GPixel/s

164.0 GTexel/s

Texture Rate

43.33 GTexel/s

-

FP16 (half)

21.66 GFLOPS

3.935 TFLOPS

FP32 (float)

1386 GFLOPS

1312 GFLOPS

FP64 (double)

43.33 GFLOPS

Board Design

235W

TDP

40W

550 W

Suggested PSU

200 W

No outputs

Outputs

4x mini-DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

GK110

GPU Name

GP107

-

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

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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