AMD Radeon RX 6400 vs AMD Radeon RX 460 1024SP

VS

AMD Radeon RX 6400 AMD Radeon RX 460 1024SP

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 2GB VRAM Radeon RX 460 1024SP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 5 years late

Boost Clock has increased by 93% (2321MHz vs 1200MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 112.0GB/s)

Lower TDP (53W vs 75W)

AMD Radeon RX 460 1024SP 's Advantages

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400 +45%

3.565 TFLOPS

Radeon RX 460 1024SP

2.458 TFLOPS

Radeon RX 6400

VS

Radeon RX 460 1024SP

Graphics Card

Jan 2022

Release Date

Jan 2017

Navi II

Generation

Arctic Islands

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x8

Clock Speeds

1923 MHz

Base Clock

1090 MHz

2321 MHz

Boost Clock

1200 MHz

2000 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

128bit

128.0GB/s

Bandwidth

112.0GB/s

Render Config

-

SM Count

-

12

Compute Units

16

768

Shading Units

1024

48

TMUs

64

32

ROPs

16

-

Tensor Cores

-

12

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

1024 KB

Theoretical Performance

74.27 GPixel/s

Pixel Rate

19.20 GPixel/s

111.4 GTexel/s

Texture Rate

76.80 GTexel/s

7.130 TFLOPS

FP16 (half)

2.458 TFLOPS

3.565 TFLOPS

FP32 (float)

2.458 TFLOPS

222.8 GFLOPS

FP64 (double)

153.6 GFLOPS

Graphics Processor

Navi 24

GPU Name

Baffin

Navi 24 XL (215-135000046)

GPU Variant

Baffin XT

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

6 nm

Process Size

14 nm

5.4 billion

Transistors

3 billion

107 mm²

Die Size

123 mm²

Board Design

53W

TDP

75W

250 W

Suggested PSU

250 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 2.0b 1x 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

1.2

-

CUDA

-

6.6

Shader Model

6.4

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