AMD Radeon RX 6600S vs AMD Radeon RX 6650M XT

VS

AMD Radeon RX 6600S

AMD Radeon RX 6650M XT

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 8GB VRAM Radeon RX 6650M XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6600S 's Advantages

Lower TDP (80W vs 120W)

AMD Radeon RX 6650M XT 's Advantages

Boost Clock has increased by 21% (2416MHz vs 2000MHz)

More VRAM (8GB vs 4GB)

Larger VRAM bandwidth (256.0GB/s vs 224.0GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600S

7.168 TFLOPS

Radeon RX 6650M XT +38%

9.896 TFLOPS

Radeon RX 6600S

VS

Radeon RX 6650M XT

Graphics Card

Jan 2022

Release Date

Jan 2022

Mobility Radeon

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x8

Clock Speeds

1700 MHz

Base Clock

2068 MHz

2000 MHz

Boost Clock

2416 MHz

1750 MHz

Memory Clock

2000 MHz

Memory

4GB

Memory Size

8GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

128bit

224.0GB/s

Bandwidth

256.0GB/s

Render Config

28

Compute Units

32

-

1792

Shading Units

2048

112

TMUs

128

64

ROPs

64

-

28

RT Cores

32

128 KB per Array

L1 Cache

128 KB per Array

2 MB

L2 Cache

2 MB

32 MB

L3 Cache

32 MB

Theoretical Performance

128.0 GPixel/s

Pixel Rate

154.6 GPixel/s

224.0 GTexel/s

Texture Rate

309.2 GTexel/s

14.34 TFLOPS

FP16 (half)

19.79 TFLOPS

7.168 TFLOPS

FP32 (float)

9.896 TFLOPS

448.0 GFLOPS

FP64 (double)

618.5 GFLOPS

Board Design

80W

TDP

120W

-

No outputs

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

Navi 23

-

RDNA 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

7 nm

Process Size

7 nm

11.06 billion

Transistors

11.06 billion

237 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.3

Vulkan

1.3

-

6.5

Shader Model

6.5

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