AMD Radeon RX 6400 vs AMD Radeon R9 295X2

VS

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 6400 and 4GB VRAM Radeon R9 295X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 7 years and 9 months late

Boost Clock2321MHz

Lower TDP (53W vs 500W)

AMD Radeon R9 295X2 's Advantages

Larger VRAM bandwidth (320.0GB/s vs 128.0GB/s)

2048 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6400

3.565 TFLOPS

Radeon R9 295X2 +60%

5.733 TFLOPS

Radeon RX 6400

VS

Radeon R9 295X2

Graphics Card

Jan 2022

Release Date

Apr 2014

Navi II

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 4.0 x4

Bus Interface

PCIe 3.0 x16

Clock Speeds

1923 MHz

Base Clock

-

2321 MHz

Boost Clock

-

2000 MHz

Memory Clock

1250 MHz

Memory

4GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

64bit

Memory Bus

512bit

128.0GB/s

Bandwidth

320.0GB/s

Render Config

-

SM Count

-

12

Compute Units

44

768

Shading Units

2816

48

TMUs

176

32

ROPs

64

-

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

65.15 GPixel/s

111.4 GTexel/s

Texture Rate

179.2 GTexel/s

7.130 TFLOPS

FP16 (half)

-

3.565 TFLOPS

FP32 (float)

5.733 TFLOPS

222.8 GFLOPS

FP64 (double)

716.7 GFLOPS

Graphics Processor

Navi 24

GPU Name

Vesuvius

Navi 24 XL (215-135000046)

GPU Variant

Vesuvius XT (215-0852022)

RDNA 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

6 nm

Process Size

28 nm

5.4 billion

Transistors

6.2 billion

107 mm²

Die Size

438 mm²

Board Design

53W

TDP

500W

250 W

Suggested PSU

900 W

1x HDMI 2.1 1x DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.0

1.3

Vulkan

1.2

-

CUDA

-

6.6

Shader Model

6.3

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