NVIDIA GeForce RTX 5080 vs AMD Radeon RX 6400

VS

NVIDIA GeForce RTX 5080

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 5080 and 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 's Advantages

Released 3 years late

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

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (973.8GB/s vs 128.0GB/s)

9984 additional rendering cores

AMD Radeon RX 6400 's Advantages

Lower TDP (53W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 +1420%

54.19 TFLOPS

Radeon RX 6400

3.565 TFLOPS

GeForce RTX 5080

VS

Radeon RX 6400

Graphics Card

Jan 2025

Release Date

Jan 2022

GeForce 50

Generation

Navi II

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

2235 MHz

Base Clock

1923 MHz

2520 MHz

Boost Clock

2321 MHz

2400 MHz

Memory Clock

2000 MHz

Memory

16GB

Memory Size

4GB

GDDR7

Memory Type

GDDR6

256bit

Memory Bus

64bit

973.8GB/s

Bandwidth

128.0GB/s

Render Config

-

Compute Units

12

84

SM Count

-

10752

Shading Units

768

336

TMUs

48

128

ROPs

32

336

Tensor Cores

-

84

RT Cores

12

128 KB (per SM)

L1 Cache

128 KB per Array

64 MB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

322.6 GPixel/s

Pixel Rate

74.27 GPixel/s

846.7 GTexel/s

Texture Rate

111.4 GTexel/s

54.19 TFLOPS

FP16 (half)

7.130 TFLOPS

54.19 TFLOPS

FP32 (float)

3.565 TFLOPS

846.7 GFLOPS

FP64 (double)

222.8 GFLOPS

Board Design

350W

TDP

53W

750 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

1x 16-pin

Power Connectors

None

Graphics Processor

GB203

GPU Name

Navi 24

GB203-400-A1

GPU Variant

Navi 24 XL (215-135000046)

Blackwell 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

0

Process Size

6 nm

Unknown

Transistors

5.4 billion

377 mm²

Die Size

107 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.2

1.3

Vulkan

1.3

10.1

CUDA

-

6.8

Shader Model

6.7

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