AMD Radeon RX 6600S vs AMD Radeon RX 550 Mobile

VS

AMD Radeon RX 6600S

AMD Radeon RX 550 Mobile

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 2GB VRAM Radeon RX 550 Mobile to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Released 4 years and 6 months late

Boost Clock has increased by 55% (2000MHz vs 1287MHz)

More VRAM (4GB vs 2GB)

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

1152 additional rendering cores

AMD Radeon RX 550 Mobile 's Advantages

Lower TDP (50W vs 80W)

Score

Benchmark

FP32 (float)

Radeon RX 6600S +335%

7.168 TFLOPS

Radeon RX 550 Mobile

1.647 TFLOPS

Radeon RX 6600S

VS

Radeon RX 550 Mobile

Graphics Card

Jan 2022

Release Date

Jul 2017

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 3.0 x8

Clock Speeds

1700 MHz

Base Clock

1100 MHz

2000 MHz

Boost Clock

1287 MHz

1750 MHz

Memory Clock

1500 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

GDDR5

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

96.00GB/s

Render Config

28

Compute Units

10

-

1792

Shading Units

640

112

TMUs

40

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

128.0 GPixel/s

Pixel Rate

20.59 GPixel/s

224.0 GTexel/s

Texture Rate

51.48 GTexel/s

14.34 TFLOPS

FP16 (half)

1.647 TFLOPS

7.168 TFLOPS

FP32 (float)

1.647 TFLOPS

448.0 GFLOPS

FP64 (double)

103.0 GFLOPS

Board Design

80W

TDP

50W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

Lexa

-

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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