AMD Radeon RX 6600 vs AMD Radeon RX 550X

VS

AMD Radeon RX 6600

AMD Radeon RX 550X

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX 6600 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 6600 's Advantages

Released 2 years and 10 months late

Boost Clock has increased by 111% (2491MHz vs 1183MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (224.0GB/s vs 96.00GB/s)

1280 additional rendering cores

AMD Radeon RX 550X 's Advantages

Lower TDP (50W vs 132W)

Score

Benchmark

FP32 (float)

Radeon RX 6600 +637%

8.928 TFLOPS

Radeon RX 550X

1.211 TFLOPS

Radeon RX 6600

VS

Radeon RX 550X

Graphics Card

Oct 2021

Release Date

Dec 2018

Navi II

Generation

Polaris

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1626 MHz

Base Clock

1100 MHz

2491 MHz

Boost Clock

1183 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

8GB

Memory Size

4GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

96.00GB/s

Render Config

28

Compute Units

8

-

1792

Shading Units

512

112

TMUs

32

64

ROPs

16

-

28

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

2 MB

L2 Cache

512 KB

32 MB

L3 Cache

-

Theoretical Performance

159.4 GPixel/s

Pixel Rate

18.93 GPixel/s

279.0 GTexel/s

Texture Rate

37.86 GTexel/s

17.86 TFLOPS

FP16 (half)

1211 GFLOPS

8.928 TFLOPS

FP32 (float)

1211 GFLOPS

558.0 GFLOPS

FP64 (double)

75.71 GFLOPS

Board Design

132W

TDP

50W

300 W

Suggested PSU

250 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

Lexa

Navi 23 XL (215-130000016)

GPU Variant

Lexa PRO (215-0904018)

RDNA 2.0

Architecture

GCN 4.0

TSMC

Foundry

GlobalFoundries

7 nm

Process Size

14 nm

11.06 billion

Transistors

2.2 billion

237 mm²

Die Size

103 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.2

-

6.5

Shader Model

6.4

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