AMD Radeon RX 6400 vs AMD Radeon RX 7950 XTX

VS

AMD Radeon RX 6400 AMD Radeon RX 7950 XTX

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 24GB VRAM Radeon RX 7950 XTX 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 355W)

AMD Radeon RX 7950 XTX 's Advantages

Boost Clock has increased by 42% (3300MHz vs 2321MHz)

More VRAM (24GB vs 4GB)

Larger VRAM bandwidth (960.0GB/s vs 128.0GB/s)

5376 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400

3.565 TFLOPS

Radeon RX 7950 XTX +2174%

81.1 TFLOPS

Radeon RX 6400

VS

Radeon RX 7950 XTX

Graphics Card

Jan 2022

Release Date

Unknown

Navi II

Generation

Navi III

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 4.0 x16

Clock Speeds

1923 MHz

Base Clock

2200 MHz

2321 MHz

Boost Clock

3300 MHz

2000 MHz

Memory Clock

2500 MHz

Memory

4GB

Memory Size

24GB

GDDR6

Memory Type

GDDR6

64bit

Memory Bus

384bit

128.0GB/s

Bandwidth

960.0GB/s

Render Config

-

SM Count

-

12

Compute Units

96

768

Shading Units

6144

48

TMUs

384

32

ROPs

192

-

Tensor Cores

-

12

RT Cores

96

128 KB per Array

L1 Cache

256 KB per Array

1024 KB

L2 Cache

6 MB

Theoretical Performance

74.27 GPixel/s

Pixel Rate

633.6 GPixel/s

111.4 GTexel/s

Texture Rate

1267 GTexel/s

7.130 TFLOPS

FP16 (half)

162.2 TFLOPS

3.565 TFLOPS

FP32 (float)

81.10 TFLOPS

222.8 GFLOPS

FP64 (double)

2.534 TFLOPS

Graphics Processor

Navi 24

GPU Name

Navi 31

Navi 24 XL (215-135000046)

GPU Variant

Navi 31 XTX+

RDNA 2.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

6 nm

Process Size

5 nm

5.4 billion

Transistors

57.7 billion

107 mm²

Die Size

529 mm²

Board Design

53W

TDP

355W

250 W

Suggested PSU

750 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

None

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.2

OpenCL

2.2

1.3

Vulkan

1.3

-

CUDA

-

6.6

Shader Model

6.7

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