AMD Radeon RX 7900 XTX vs AMD Radeon RX 550X

VS

AMD Radeon RX 7900 XTX AMD Radeon RX 550X

We compared two Desktop platform GPUs: 24GB VRAM Radeon RX 7900 XTX and 4GB VRAM Radeon RX 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7900 XTX 's Advantages

Released 3 years and 11 months late

Boost Clock has increased by 111% (2498MHz vs 1183MHz)

More VRAM (24GB vs 4GB)

Larger VRAM bandwidth (960.0GB/s vs 96.00GB/s)

5632 additional rendering cores

AMD Radeon RX 550X 's Advantages

Lower TDP (50W vs 355W)

Score

Benchmark

FP32 (float)

Radeon RX 7900 XTX +4969%

61.39 TFLOPS

Radeon RX 550X

1.211 TFLOPS

Radeon RX 7900 XTX

VS

Radeon RX 550X

Graphics Card

Nov 2022

Release Date

Dec 2018

Navi III

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1929 MHz

Base Clock

1100 MHz

2498 MHz

Boost Clock

1183 MHz

2500 MHz

Memory Clock

1500 MHz

Memory

24GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

384bit

Memory Bus

128bit

960.0GB/s

Bandwidth

96.00GB/s

Render Config

-

SM Count

-

96

Compute Units

8

6144

Shading Units

512

384

TMUs

32

192

ROPs

16

-

Tensor Cores

-

96

RT Cores

-

256 KB per Array

L1 Cache

16 KB (per CU)

6 MB

L2 Cache

512 KB

Theoretical Performance

479.6 GPixel/s

Pixel Rate

18.93 GPixel/s

959.2 GTexel/s

Texture Rate

37.86 GTexel/s

122.8 TFLOPS

FP16 (half)

1211 GFLOPS

61.39 TFLOPS

FP32 (float)

1211 GFLOPS

1.918 TFLOPS

FP64 (double)

75.71 GFLOPS

Graphics Processor

Navi 31

GPU Name

Lexa

Navi 31 XTX (215-145000146)

GPU Variant

Lexa PRO (215-0904018)

RDNA 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

5 nm

Process Size

14 nm

57.7 billion

Transistors

2.2 billion

529 mm²

Die Size

103 mm²

Board Design

355W

TDP

50W

750 W

Suggested PSU

250 W

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

Outputs

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

2x 8-pin

Power Connectors

None

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.2

OpenCL

2.1

1.3

Vulkan

1.2

-

CUDA

-

6.7

Shader Model

6.4

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