AMD Radeon RX 6600S vs AMD Radeon RX 7900M

VS

AMD Radeon RX 6600S

AMD Radeon RX 7900M

We compared two Mobile platform GPUs: 4GB VRAM Radeon RX 6600S and 16GB VRAM Radeon RX 7900M 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 180W)

AMD Radeon RX 7900M 's Advantages

Released 1 years and 9 months late

Boost Clock has increased by 4% (2090MHz vs 2000MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (576.0GB/s vs 224.0GB/s)

2816 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon RX 6600S

7.168 TFLOPS

Radeon RX 7900M +437%

38.52 TFLOPS

Blender

Radeon RX 6600S

1115

Radeon RX 7900M +131%

2583

Radeon RX 6600S

VS

Radeon RX 7900M

Graphics Card

Jan 2022

Release Date

Oct 2023

Mobility Radeon

Generation

Navi Mobile

Mobile

Type

Mobile

PCIe 4.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1700 MHz

Base Clock

1825 MHz

2000 MHz

Boost Clock

2090 MHz

1750 MHz

Memory Clock

2250 MHz

Memory

4GB

Memory Size

16GB

GDDR6

Memory Type

GDDR6

128bit

Memory Bus

256bit

224.0GB/s

Bandwidth

576.0GB/s

Render Config

28

Compute Units

72

-

1792

Shading Units

4608

112

TMUs

288

64

ROPs

192

-

28

RT Cores

72

128 KB per Array

L1 Cache

256 KB per Array

2 MB

L2 Cache

6 MB

32 MB

L3 Cache

64 MB

Theoretical Performance

128.0 GPixel/s

Pixel Rate

401.3 GPixel/s

224.0 GTexel/s

Texture Rate

601.9 GTexel/s

14.34 TFLOPS

FP16 (half)

77.05 TFLOPS

7.168 TFLOPS

FP32 (float)

38.52 TFLOPS

448.0 GFLOPS

FP64 (double)

1204 GFLOPS

Board Design

80W

TDP

180W

-

No outputs

Outputs

Portable Device Dependent

None

Power Connectors

None

Graphics Processor

Navi 23

GPU Name

Navi 31

-

GPU Variant

Navi 31

RDNA 2.0

Architecture

RDNA 3.0

TSMC

Foundry

TSMC

7 nm

Process Size

5 nm

11.06 billion

Transistors

57.7 billion

237 mm²

Die Size

529 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.2

1.3

Vulkan

1.3

-

6.5

Shader Model

6.7

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