Radeon R9 M290X Crossfire and Radeon RX 6600 XT - video card comparison

Radeon R9 M290X Crossfire

Radeon RX 6600 XT

Architecture

GCN (2011−2017)

Navi / RDNA2 (2020−2022)

GPU code name

Neptune CF

Navi 23

Market segment

Laptop

Desktop

Release date

March 2014

July 2021

Interface

PCIe 4.0 x8

Supplementary power connectors

1x 8-pin

Boost clock speed

900 MHz

2589 MHz

Core clock speed

850 MHz

1968 MHz

Manufacturing process technology

28 nm

7 nm

Number of transistors

2x 2800 Million

11,060 million

Pipelines / CUDA cores

2560

2048

Power consumption (TDP)

200 Watt

160 (TGP) Watt

Texture fill rate

331.4

Memory type

GDDR5

GDDR6

Maximum RAM amount

2x 4 GB

8 GB

Memory bus width

2x 256 Bit

128 Bit

Memory clock speed

4800 MHz

16000 MHz

Memory bandwidth

256.0 GB/s

Shared memory

Display Connectors

1x HDMI, 2x DisplayPort

HDMI

DirectX

12 (FL 11_1)

12.0 Ultimate (12_2)

OpenCL

2.1

OpenGL

4.6

Shader Model

6.5

Vulkan

1.2