AMD Radeon RX 7800 XT vs AMD Radeon 550X

VS

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 7800 XT and 2GB VRAM Radeon 550X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 7800 XT 's Advantages

Released 4 years and 5 months late

Boost Clock has increased by 100% (2430MHz vs 1218MHz)

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (624.1GB/s vs 112.0GB/s)

3328 additional rendering cores

AMD Radeon 550X 's Advantages

Lower TDP (50W vs 263W)

Score

Benchmark

FP32 (float)

Radeon RX 7800 XT +2892%

37.32 TFLOPS

Radeon 550X

1.247 TFLOPS

Radeon RX 7800 XT

VS

Radeon 550X

Graphics Card

Aug 2023

Release Date

Mar 2019

Navi III

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1295 MHz

Base Clock

1082 MHz

2430 MHz

Boost Clock

1218 MHz

2438 MHz

Memory Clock

1750 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

256bit

Memory Bus

128bit

624.1GB/s

Bandwidth

112.0GB/s

Render Config

-

SM Count

-

60

Compute Units

8

3840

Shading Units

512

240

TMUs

32

96

ROPs

16

-

Tensor Cores

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

512 KB

Theoretical Performance

233.3 GPixel/s

Pixel Rate

19.49 GPixel/s

583.2 GTexel/s

Texture Rate

38.98 GTexel/s

74.65 TFLOPS

FP16 (half)

1247 GFLOPS

37.32 TFLOPS

FP32 (float)

1247 GFLOPS

1166 GFLOPS

FP64 (double)

77.95 GFLOPS

Graphics Processor

Navi 32

GPU Name

Lexa

Navi 32 XT (215-180000006)

GPU Variant

Lexa PRO (215-0904018)

RDNA 3.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

5 nm

Process Size

14 nm

28.1 billion

Transistors

2.2 billion

346 mm²

Die Size

103 mm²

Board Design

263W

TDP

50W

600 W

Suggested PSU

250 W

1x HDMI 2.1a 3x DisplayPort 2.1

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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