Radeon RX 6600 XT and GeForce RTX 4080 Mobile - video card comparison

Radeon RX 6600 XT

GeForce RTX 4080 Mobile

Architecture

Navi / RDNA2 (2020−2022)

Ada Lovelace

GPU code name

Navi 23

GN21-X9

Market segment

Desktop

Laptop

Release date

July 2021

January 2023

Interface

PCIe 4.0 x8

PCIe 4.0 x16

Supplementary power connectors

1x 8-pin

Boost clock speed

2589 MHz

2280 MHz

Core clock speed

1968 MHz

1860 MHz

Manufacturing process technology

7 nm

5 nm

Number of transistors

11,060 million

35,800 million

Pipelines / CUDA cores

2048

7424

Power consumption (TDP)

160 (TGP) Watt

150 Watt (60 - 150 Watt TGP)

Texture fill rate

331.4

386.3

Memory type

GDDR6

GDDR6X

Maximum RAM amount

8 GB

12 GB

Memory bus width

128 Bit

192 Bit

Memory clock speed

16000 MHz

20000 MHz

Memory bandwidth

256.0 GB/s

432.0 GB/s

Shared memory

Display Connectors

1x HDMI, 2x DisplayPort

Portable Device Dependent

HDMI

DirectX

12.0 Ultimate (12_2)

12 Ultimate (12_2)

CUDA

8.9

OpenCL

2.1

3.0

OpenGL

4.6

Shader Model

6.5

6.7

Vulkan

1.2

1.3