NVIDIA RTX A4000 vs NVIDIA Quadro P400

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We compared two Professional market GPUs: 16GB VRAM RTX A4000 and 2GB VRAM Quadro P400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A4000 's Advantages

Released 4 years and 2 months late

Boost Clock has increased by 25% (1560MHz vs 1252MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (448.0GB/s vs 32.06GB/s)

5888 additional rendering cores

NVIDIA Quadro P400 's Advantages

Lower TDP (30W vs 140W)

Score

Benchmark

FP32 (float)

RTX A4000 +2890%

19.17 TFLOPS

Quadro P400

0.641 TFLOPS

OctaneBench

RTX A4000 +3788%

350

Quadro P400

9

RTX A4000

VS

Quadro P400

Graphics Card

Apr 2021

Release Date

Feb 2017

Quadro Ampere

Generation

Quadro

Professional

Type

Professional

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

735 MHz

Base Clock

1228 MHz

1560 MHz

Boost Clock

1252 MHz

1750 MHz

Memory Clock

1002 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

64bit

448.0GB/s

Bandwidth

32.06GB/s

Render Config

48

SM Count

2

-

Compute Units

-

6144

Shading Units

256

192

TMUs

16

96

ROPs

16

192

Tensor Cores

-

48

RT Cores

-

128 KB (per SM)

L1 Cache

48 KB (per SM)

4 MB

L2 Cache

512 KB

Theoretical Performance

149.8 GPixel/s

Pixel Rate

20.03 GPixel/s

299.5 GTexel/s

Texture Rate

20.03 GTexel/s

19.17 TFLOPS

FP16 (half)

10.02 GFLOPS

19.17 TFLOPS

FP32 (float)

641.0 GFLOPS

299.5 GFLOPS

FP64 (double)

20.03 GFLOPS

Graphics Processor

GA104

GPU Name

GP107

GA104-875-A1

GPU Variant

GP107-825-KA-A1

Ampere

Architecture

Pascal

Samsung

Foundry

Samsung

8 nm

Process Size

14 nm

17.4 billion

Transistors

3.3 billion

392 mm²

Die Size

132 mm²

Board Design

140W

TDP

30W

300 W

Suggested PSU

200 W

4x DisplayPort 1.4a

Outputs

3x mini-DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.6

CUDA

6.1

6.7

Shader Model

6.4

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