AMD Radeon RX 6400 vs AMD Radeon 540

VS

AMD Radeon RX 6400 AMD Radeon 540

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 1024MB VRAM AMD Radeon 540 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 4 years and 9 months late

Boost Clock2321MHz

More VRAM (4GB vs 1GB)

Larger VRAM bandwidth (128.0GB/s vs 24.00GB/s)

384 additional rendering cores

AMD Radeon 540 's Advantages

Lower TDP (50W vs 53W)

Score

Benchmark

FP32 (float)

Radeon RX 6400 +292%

3.565 TFLOPS

AMD Radeon 540

0.908 TFLOPS

Radeon RX 6400

VS

AMD Radeon 540

Graphics Card

Jan 2022

Release Date

Apr 2017

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x8

Clock Speeds

1923 MHz

Base Clock

-

2321 MHz

Boost Clock

-

2000 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

1024MB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

32bit

128.0GB/s

Bandwidth

24.00GB/s

Render Config

-

SM Count

-

12

Compute Units

6

768

Shading Units

384

48

TMUs

24

32

ROPs

16

-

Tensor Cores

-

12

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

512 KB

Theoretical Performance

74.27 GPixel/s

Pixel Rate

18.93 GPixel/s

111.4 GTexel/s

Texture Rate

28.39 GTexel/s

7.130 TFLOPS

FP16 (half)

908.5 GFLOPS

3.565 TFLOPS

FP32 (float)

908.5 GFLOPS

222.8 GFLOPS

FP64 (double)

56.78 GFLOPS

Graphics Processor

Navi 24

GPU Name

Lexa

Navi 24 XL (215-135000046)

GPU Variant

Lexa PRO (215-0904018)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

6 nm

Process Size

14 nm

5.4 billion

Transistors

2.2 billion

107 mm²

Die Size

103 mm²

Board Design

53W

TDP

50W

250 W

Suggested PSU

250 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

2x DisplayPort 1.4a

None

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.3

-

CUDA

-

6.6

Shader Model

6.7

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