AMD Radeon 550X vs AMD Radeon RX 7990 XTX

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon 550X and 24GB VRAM Radeon RX 7990 XTX to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 's Advantages

Lower TDP (50W vs 405W)

AMD Radeon RX 7990 XTX 's Advantages

Boost Clock has increased by 195% (3599MHz vs 1218MHz)

More VRAM (24GB vs 2GB)

Larger VRAM bandwidth (1152GB/s vs 112.0GB/s)

5632 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X

1.247 TFLOPS

Radeon RX 7990 XTX +6993%

88.45 TFLOPS

Radeon 550X

VS

Radeon RX 7990 XTX

Graphics Card

Mar 2019

Release Date

Unknown

Polaris

Generation

Navi III

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1082 MHz

Base Clock

2500 MHz

1218 MHz

Boost Clock

3599 MHz

1750 MHz

Memory Clock

3000 MHz

Memory

2GB

Memory Size

24GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

384bit

112.0GB/s

Bandwidth

1152GB/s

Render Config

-

SM Count

-

8

Compute Units

96

512

Shading Units

6144

32

TMUs

384

16

ROPs

192

-

Tensor Cores

-

RT Cores

96

16 KB (per CU)

L1 Cache

256 KB per Array

512 KB

L2 Cache

6 MB

Theoretical Performance

19.49 GPixel/s

Pixel Rate

691.0 GPixel/s

38.98 GTexel/s

Texture Rate

1382 GTexel/s

1247 GFLOPS

FP16 (half)

176.9 TFLOPS

1247 GFLOPS

FP32 (float)

88.45 TFLOPS

77.95 GFLOPS

FP64 (double)

2.764 TFLOPS

Graphics Processor

Lexa

GPU Name

Navi 31

Lexa PRO (215-0904018)

GPU Variant

Navi 31 XTX+

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

Board Design

50W

TDP

405W

250 W

Suggested PSU

800 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

3x 8-pin

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

-

CUDA

-

6.4

Shader Model

6.7

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