AMD Radeon R7 250X vs AMD Radeon RX 6400

VS

AMD Radeon R7 250X

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 1024MB VRAM Radeon R7 250X 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 RX 6400 's Advantages

Released 7 years and 11 months late

Boost Clock2321MHz

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (128.0GB/s vs 72.00GB/s)

128 additional rendering cores

Lower TDP (53W vs 80W)

Score

Benchmark

FP32 (float)

Radeon R7 250X

1.216 TFLOPS

Radeon RX 6400 +193%

3.565 TFLOPS

Radeon R7 250X

VS

Radeon RX 6400

Graphics Card

Feb 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

1125 MHz

Memory Clock

2000 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

128.0GB/s

Render Config

10

Compute Units

12

-

640

Shading Units

768

40

TMUs

48

16

ROPs

32

-

RT Cores

12

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

15.20 GPixel/s

Pixel Rate

74.27 GPixel/s

38.00 GTexel/s

Texture Rate

111.4 GTexel/s

-

FP16 (half)

7.130 TFLOPS

1216 GFLOPS

FP32 (float)

3.565 TFLOPS

76.00 GFLOPS

FP64 (double)

222.8 GFLOPS

Board Design

80W

TDP

53W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

Navi 24

Cape Verde XT

GPU Variant

Navi 24 XL (215-135000046)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

1.5 billion

Transistors

5.4 billion

123 mm²

Die Size

107 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.2

1.2

Vulkan

1.3

-

5.1

Shader Model

6.7

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