AMD Radeon RX 6400 vs AMD Radeon RX 580X

VS

AMD Radeon RX 6400

AMD Radeon RX 580X

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 8GB VRAM Radeon RX 580X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 3 years and 9 months late

Boost Clock has increased by 73% (2321MHz vs 1340MHz)

Lower TDP (53W vs 185W)

AMD Radeon RX 580X 's Advantages

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 128.0GB/s)

1536 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400

3.565 TFLOPS

Radeon RX 580X +73%

6.175 TFLOPS

Radeon RX 6400

VS

Radeon RX 580X

Graphics Card

Jan 2022

Release Date

Apr 2018

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x16

Clock Speeds

1923 MHz

Base Clock

1257 MHz

2321 MHz

Boost Clock

1340 MHz

2000 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

8GB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

256bit

128.0GB/s

Bandwidth

256.0GB/s

Render Config

12

Compute Units

36

-

768

Shading Units

2304

48

TMUs

144

32

ROPs

32

-

12

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

2 MB

16 MB

L3 Cache

-

Theoretical Performance

74.27 GPixel/s

Pixel Rate

42.88 GPixel/s

111.4 GTexel/s

Texture Rate

193.0 GTexel/s

7.130 TFLOPS

FP16 (half)

6.175 TFLOPS

3.565 TFLOPS

FP32 (float)

6.175 TFLOPS

222.8 GFLOPS

FP64 (double)

385.9 GFLOPS

Board Design

53W

TDP

185W

250 W

Suggested PSU

450 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x HDMI 2.0b 3x DisplayPort 1.4a

None

Power Connectors

1x 8-pin

Graphics Processor

Navi 24

GPU Name

Polaris 20

Navi 24 XL (215-135000046)

GPU Variant

Polaris 20 XTX (215-0910038)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

6 nm

Process Size

14 nm

5.4 billion

Transistors

5.7 billion

107 mm²

Die Size

232 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.2

-

6.7

Shader Model

6.4

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