AMD Radeon RX 6400 vs NVIDIA GeForce RTX 5090

VS

AMD Radeon RX 6400 NVIDIA GeForce RTX 5090

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 28GB VRAM GeForce RTX 5090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Lower TDP (53W vs 500W)

NVIDIA GeForce RTX 5090 's Advantages

Released 3 years late

Boost Clock has increased by 9% (2520MHz vs 2321MHz)

More VRAM (28GB vs 4GB)

Larger VRAM bandwidth (280.0GB/s vs 128.0GB/s)

19712 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400

3.565 TFLOPS

GeForce RTX 5090 +2794%

103.2 TFLOPS

Radeon RX 6400

VS

GeForce RTX 5090

Graphics Card

Jan 2022

Release Date

Jan 2025

Navi II

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 5.0 x16

Clock Speeds

1923 MHz

Base Clock

2235 MHz

2321 MHz

Boost Clock

2520 MHz

2000 MHz

Memory Clock

2500 MHz

Memory

4GB

Memory Size

28GB

GDDR6

Memory Type

GDDR7

64bit

Memory Bus

448bit

128.0GB/s

Bandwidth

280.0GB/s

Render Config

-

SM Count

160

12

Compute Units

-

768

Shading Units

20480

48

TMUs

640

32

ROPs

192

-

Tensor Cores

640

12

RT Cores

160

128 KB per Array

L1 Cache

128 KB (per SM)

1024 KB

L2 Cache

88 MB

Theoretical Performance

74.27 GPixel/s

Pixel Rate

483.8 GPixel/s

111.4 GTexel/s

Texture Rate

1613 GTexel/s

7.130 TFLOPS

FP16 (half)

103.2 TFLOPS

3.565 TFLOPS

FP32 (float)

103.2 TFLOPS

222.8 GFLOPS

FP64 (double)

1.613 TFLOPS

Graphics Processor

Navi 24

GPU Name

GB202

Navi 24 XL (215-135000046)

GPU Variant

GB202

RDNA 2.0

Architecture

Blackwell 2.0

TSMC

Foundry

TSMC

6 nm

Process Size

0 nm

5.4 billion

Transistors

Unknown

107 mm²

Die Size

Unknown

Board Design

53W

TDP

500W

250 W

Suggested PSU

900 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 16-pin

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

9.1

6.6

Shader Model

6.7

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