NVIDIA Quadro P620 vs NVIDIA Quadro P400

VS

NVIDIA Quadro P620

NVIDIA Quadro P400

We compared two Professional market GPUs: 2GB VRAM Quadro P620 and 2GB VRAM Quadro P400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro P620 's Advantages

Released 1 years late

Boost Clock has increased by 8% (1354MHz vs 1252MHz)

Larger VRAM bandwidth (80.13GB/s vs 32.06GB/s)

256 additional rendering cores

NVIDIA Quadro P400 's Advantages

Lower TDP (30W vs 40W)

Score

Benchmark

FP32 (float)

Quadro P620 +116%

1.386 TFLOPS

Quadro P400

0.641 TFLOPS

OctaneBench

Quadro P620 +177%

25

Quadro P400

9

Quadro P620

VS

Quadro P400

Graphics Card

Feb 2018

Release Date

Feb 2017

Quadro

Generation

Quadro

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1266 MHz

Base Clock

1228 MHz

1354 MHz

Boost Clock

1252 MHz

Memory Clock

1002 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

80.13GB/s

Bandwidth

32.06GB/s

Render Config

-

4

SM Count

2

512

Shading Units

256

32

TMUs

16

ROPs

16

-

48 KB (per SM)

L1 Cache

48 KB (per SM)

1024 KB

L2 Cache

512 KB

-

Theoretical Performance

21.66 GPixel/s

Pixel Rate

20.03 GPixel/s

43.33 GTexel/s

Texture Rate

20.03 GTexel/s

21.66 GFLOPS

FP16 (half)

10.02 GFLOPS

1386 GFLOPS

FP32 (float)

641.0 GFLOPS

43.33 GFLOPS

FP64 (double)

20.03 GFLOPS

Board Design

40W

TDP

30W

200 W

Suggested PSU

200 W

4x mini-DisplayPort 1.4a

Outputs

3x mini-DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

GP107

GPU Name

GP107

-

GPU Variant

GP107-825-KA-A1

Pascal

Architecture

Pascal

Samsung

Foundry

Samsung

14 nm

Process Size

14 nm

3.3 billion

Transistors

3.3 billion

132 mm²

Die Size

132 mm²

Graphics Features

12 (12_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

6.1

CUDA

6.1

6.4

Shader Model

6.4

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