AMD Radeon RX 550X vs AMD Radeon RX 7900 XT

VS

AMD Radeon RX 550X

AMD Radeon RX 7900 XT

We compared two Desktop platform GPUs: 4GB VRAM Radeon RX 550X and 20GB VRAM Radeon RX 7900 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 's Advantages

Lower TDP (50W vs 300W)

AMD Radeon RX 7900 XT 's Advantages

Released 3 years and 11 months late

Boost Clock has increased by 102% (2394MHz vs 1183MHz)

More VRAM (20GB vs 4GB)

Larger VRAM bandwidth (800.0GB/s vs 96.00GB/s)

4864 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 550X

1.211 TFLOPS

Radeon RX 7900 XT +4151%

51.48 TFLOPS

Radeon RX 550X

VS

Radeon RX 7900 XT

Graphics Card

Dec 2018

Release Date

Nov 2022

Polaris

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1100 MHz

Base Clock

1387 MHz

1183 MHz

Boost Clock

2394 MHz

1500 MHz

Memory Clock

2500 MHz

Memory

4GB

Memory Size

20GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

320bit

96.00GB/s

Bandwidth

800.0GB/s

Render Config

8

Compute Units

84

-

512

Shading Units

5376

32

TMUs

336

16

ROPs

192

-

RT Cores

84

16 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

-

L3 Cache

80 MB

Theoretical Performance

18.93 GPixel/s

Pixel Rate

459.6 GPixel/s

37.86 GTexel/s

Texture Rate

804.4 GTexel/s

1211 GFLOPS

FP16 (half)

103.0 TFLOPS

1211 GFLOPS

FP32 (float)

51.48 TFLOPS

75.71 GFLOPS

FP64 (double)

1.609 TFLOPS

Board Design

50W

TDP

300W

250 W

Suggested PSU

700 W

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

Outputs

1x HDMI 2.1a 2x DisplayPort 2.1 1x USB Type-C

None

Power Connectors

2x 8-pin

Graphics Processor

Lexa

GPU Name

Navi 31

Lexa PRO (215-0904018)

GPU Variant

Navi 31 XT (215-145000156)

GCN 4.0

Architecture

RDNA 3.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

5 nm

2.2 billion

Transistors

57.7 billion

103 mm²

Die Size

529 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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