AMD Radeon 550 vs AMD Radeon RX 6400

VS

AMD Radeon 550

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550 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 550 's Advantages

Lower TDP (50W vs 53W)

AMD Radeon RX 6400 's Advantages

Released 4 years and 9 months late

Boost Clock has increased by 96% (2321MHz vs 1183MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 56.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550

1.211 TFLOPS

Radeon RX 6400 +194%

3.565 TFLOPS

Radeon 550

VS

Radeon RX 6400

Graphics Card

Apr 2017

Release Date

Jan 2022

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x4

Clock Speeds

1100 MHz

Base Clock

1923 MHz

1183 MHz

Boost Clock

2321 MHz

1750 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

64bit

56.00GB/s

Bandwidth

128.0GB/s

Render Config

8

Compute Units

12

-

512

Shading Units

768

32

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

18.93 GPixel/s

Pixel Rate

74.27 GPixel/s

37.86 GTexel/s

Texture Rate

111.4 GTexel/s

1211 GFLOPS

FP16 (half)

7.130 TFLOPS

1211 GFLOPS

FP32 (float)

3.565 TFLOPS

75.71 GFLOPS

FP64 (double)

222.8 GFLOPS

Board Design

50W

TDP

53W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Lexa

GPU Name

Navi 24

Lexa PRO (215-0904018)

GPU Variant

Navi 24 XL (215-135000046)

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

6 nm

2.2 billion

Transistors

5.4 billion

103 mm²

Die Size

107 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.3

Vulkan

1.3

-

6.7

Shader Model

6.7

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