NVIDIA GeForce RTX 5080 Mobile vs AMD Radeon RX 6600S

VS

NVIDIA GeForce RTX 5080 Mobile

AMD Radeon RX 6600S

We compared two Mobile platform GPUs: 16GB VRAM GeForce RTX 5080 Mobile and 4GB VRAM Radeon RX 6600S to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 Mobile 's Advantages

Released 3 years late

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (1.01TB/s vs 224.0GB/s)

6400 additional rendering cores

AMD Radeon RX 6600S 's Advantages

Lower TDP (80W vs 175W)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 Mobile +357%

32.77 TFLOPS

Radeon RX 6600S

7.168 TFLOPS

GeForce RTX 5080 Mobile

VS

Radeon RX 6600S

Graphics Card

Jan 2025

Release Date

Jan 2022

GeForce 50 Mobile

Generation

Mobility Radeon

Mobile

Type

Mobile

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

1500 MHz

Base Clock

1700 MHz

2000 MHz

Boost Clock

2000 MHz

2500 MHz

Memory Clock

1750 MHz

Memory

16GB

Memory Size

4GB

GDDR7

Memory Type

GDDR6

256bit

Memory Bus

128bit

1.01TB/s

Bandwidth

224.0GB/s

Render Config

-

Compute Units

28

64

SM Count

-

8192

Shading Units

1792

256

TMUs

112

96

ROPs

64

256

Tensor Cores

-

64

RT Cores

28

128 KB (per SM)

L1 Cache

128 KB per Array

64 MB

L2 Cache

2 MB

-

L3 Cache

32 MB

Theoretical Performance

192.0 GPixel/s

Pixel Rate

128.0 GPixel/s

512.0 GTexel/s

Texture Rate

224.0 GTexel/s

32.77 TFLOPS

FP16 (half)

14.34 TFLOPS

32.77 TFLOPS

FP32 (float)

7.168 TFLOPS

512.0 GFLOPS

FP64 (double)

448.0 GFLOPS

Board Design

175W

TDP

80W

550 W

Suggested PSU

-

1x HDMI 2.13x DisplayPort 1.4a

Outputs

No outputs

None

Power Connectors

None

Graphics Processor

GB203

GPU Name

Navi 23

-

Blackwell 2.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

4 nm

Process Size

7 nm

Unknown

Transistors

11.06 billion

377 mm²

Die Size

237 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

2.1

1.3

Vulkan

1.3

10.1

CUDA

-

6.8

Shader Model

6.5

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