AMD Radeon RX 550 512SP vs AMD Radeon RX 6400

VS

AMD Radeon RX 550 512SP

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550 512SP 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 550 512SP 's Advantages

Lower TDP (50W vs 53W)

AMD Radeon RX 6400 's Advantages

Released 4 years and 3 months late

Boost Clock has increased by 117% (2321MHz vs 1071MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 96.00GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550 512SP

1.097 TFLOPS

Radeon RX 6400 +224%

3.565 TFLOPS

Radeon RX 550 512SP

VS

Radeon RX 6400

Graphics Card

Oct 2017

Release Date

Jan 2022

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x4

Clock Speeds

1019 MHz

Base Clock

1923 MHz

1071 MHz

Boost Clock

2321 MHz

1500 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

64bit

96.00GB/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

512 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

17.14 GPixel/s

Pixel Rate

74.27 GPixel/s

34.27 GTexel/s

Texture Rate

111.4 GTexel/s

1097 GFLOPS

FP16 (half)

7.130 TFLOPS

1097 GFLOPS

FP32 (float)

3.565 TFLOPS

68.54 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

Baffin

GPU Name

Navi 24

Baffin LE

GPU Variant

Navi 24 XL (215-135000046)

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

6 nm

3 billion

Transistors

5.4 billion

123 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

1.2

Vulkan

1.3

-

6.4

Shader Model

6.7

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