AMD Radeon RX 6400 vs NVIDIA RTX A4000H

VS

AMD Radeon RX 6400

NVIDIA RTX A4000H

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 16GB VRAM RTX A4000H to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 9 months late

Boost Clock has increased by 49% (2321MHz vs 1560MHz)

Lower TDP (53W vs 140W)

NVIDIA RTX A4000H 's Advantages

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (448.0GB/s vs 128.0GB/s)

5376 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400

3.565 TFLOPS

RTX A4000H +437%

19.17 TFLOPS

Radeon RX 6400

VS

RTX A4000H

Graphics Card

Jan 2022

Release Date

Apr 2021

Navi II

Generation

Quadro Ampere

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 4.0 x16

Clock Speeds

1923 MHz

Base Clock

735 MHz

2321 MHz

Boost Clock

1560 MHz

2000 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

64bit

Memory Bus

256bit

128.0GB/s

Bandwidth

448.0GB/s

Render Config

12

Compute Units

-

SM Count

48

768

Shading Units

6144

48

TMUs

192

32

ROPs

96

-

Tensor Cores

192

12

RT Cores

48

128 KB per Array

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

4 MB

16 MB

L3 Cache

-

Theoretical Performance

74.27 GPixel/s

Pixel Rate

149.8 GPixel/s

111.4 GTexel/s

Texture Rate

299.5 GTexel/s

7.130 TFLOPS

FP16 (half)

19.17 TFLOPS

3.565 TFLOPS

FP32 (float)

19.17 TFLOPS

222.8 GFLOPS

FP64 (double)

299.5 GFLOPS

Board Design

53W

TDP

140W

250 W

Suggested PSU

300 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

4x DisplayPort 1.4a

None

Power Connectors

1x 6-pin

Graphics Processor

Navi 24

GPU Name

GA104

Navi 24 XL (215-135000046)

GPU Variant

GA104-???-A1

RDNA 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

6 nm

Process Size

8 nm

5.4 billion

Transistors

17.4 billion

107 mm²

Die Size

392 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

3.0

1.3

Vulkan

1.3

-

CUDA

8.6

6.7

Shader Model

6.7

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