NVIDIA Quadro P400 vs NVIDIA Quadro K620

VS

We compared two Professional market GPUs: 2GB VRAM Quadro P400 and 2GB VRAM Quadro K620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA Quadro P400 's Advantages

Released 2 years and 7 months late

Boost Clock has increased by 11% (1252MHz vs 1124MHz)

Larger VRAM bandwidth (32.06GB/s vs 28.80GB/s)

Lower TDP (30W vs 45W)

NVIDIA Quadro K620 's Advantages

128 additional rendering cores

Score

Benchmark

FP32 (float)

Quadro P400

0.641 TFLOPS

Quadro K620 +34%

0.863 TFLOPS

Quadro P400

VS

Quadro K620

Graphics Card

Feb 2017

Release Date

Jul 2014

Quadro

Generation

Quadro

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1228 MHz

Base Clock

1058 MHz

1252 MHz

Boost Clock

1124 MHz

1002 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

32.06GB/s

Bandwidth

28.80GB/s

Render Config

2

SM Count

-

Compute Units

-

256

Shading Units

384

16

TMUs

24

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

64 KB (per SMM)

512 KB

L2 Cache

2 MB

Theoretical Performance

20.03 GPixel/s

Pixel Rate

17.98 GPixel/s

20.03 GTexel/s

Texture Rate

26.98 GTexel/s

10.02 GFLOPS

FP16 (half)

-

641.0 GFLOPS

FP32 (float)

863.2 GFLOPS

20.03 GFLOPS

FP64 (double)

26.98 GFLOPS

Graphics Processor

GP107

GPU Name

GM107

GP107-825-KA-A1

GPU Variant

GM107-850-A2

Pascal

Architecture

Maxwell

Samsung

Foundry

TSMC

14 nm

Process Size

28 nm

3.3 billion

Transistors

1.87 billion

132 mm²

Die Size

148 mm²

Board Design

30W

TDP

45W

200 W

Suggested PSU

200 W

3x mini-DisplayPort 1.4a

Outputs

1x DVI 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

6.1

CUDA

5.0

6.4

Shader Model

5.1

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