AMD Radeon R9 295X2 vs AMD Radeon RX 6400

VS

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

Main Differences

AMD Radeon R9 295X2 's Advantages

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

2048 additional rendering cores

AMD Radeon RX 6400 's Advantages

Released 7 years and 9 months late

Boost Clock2321MHz

Lower TDP (53W vs 500W)

Score

Benchmark

FP32 (float)

Radeon R9 295X2 +60%

5.733 TFLOPS

Radeon RX 6400

3.565 TFLOPS

Radeon R9 295X2

VS

Radeon RX 6400

Graphics Card

Apr 2014

Release Date

Jan 2022

Volcanic Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

-

Base Clock

1923 MHz

-

Boost Clock

2321 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

512bit

Memory Bus

64bit

320.0GB/s

Bandwidth

128.0GB/s

Render Config

-

SM Count

-

44

Compute Units

12

2816

Shading Units

768

176

TMUs

48

64

ROPs

32

-

Tensor Cores

-

RT Cores

12

16 KB (per CU)

L1 Cache

128 KB per Array

1024 KB

L2 Cache

1024 KB

Theoretical Performance

65.15 GPixel/s

Pixel Rate

74.27 GPixel/s

179.2 GTexel/s

Texture Rate

111.4 GTexel/s

-

FP16 (half)

7.130 TFLOPS

5.733 TFLOPS

FP32 (float)

3.565 TFLOPS

716.7 GFLOPS

FP64 (double)

222.8 GFLOPS

Graphics Processor

Vesuvius

GPU Name

Navi 24

Vesuvius XT (215-0852022)

GPU Variant

Navi 24 XL (215-135000046)

GCN 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

6.2 billion

Transistors

5.4 billion

438 mm²

Die Size

107 mm²

Board Design

500W

TDP

53W

900 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

2x 8-pin

Power Connectors

None

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.0

OpenCL

2.2

1.2

Vulkan

1.3

-

CUDA

-

6.3

Shader Model

6.6

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