Radeon R9 M290X Crossfire and Radeon R6 M255DX - video card comparison

Radeon R9 M290X Crossfire

Radeon R6 M255DX

Architecture

GCN (2011−2017)

GCN (2011−2017)

GPU code name

Neptune CF

Jet UL(T) DDR3

Market segment

Laptop

Laptop

Release date

March 2014

June 2014

Interface

-

IGP

Boost clock speed

900 MHz

940 MHz

Core clock speed

850 MHz

855 / 514 MHz

Manufacturing process technology

28 nm

28 nm

Number of transistors

2x 2800 Million

690 million

Pipelines / CUDA cores

2560

576

Power consumption (TDP)

200 Watt

-

Texture fill rate

-

17.10

Memory type

GDDR5

DDR3

Maximum RAM amount

2x 4 GB

System Shared

Memory bus width

2x 256 Bit

System Shared

Memory clock speed

4800 MHz

System Shared

Shared memory

-

+

Display Connectors

-

No outputs

Eyefinity

-

+

DirectX

12 (FL 11_1)

12 (11_1)

OpenCL

-

1.2

OpenGL

-

4.6

Shader Model

-

5.1

Vulkan

-

1.2.131

AppAcceleration

-

+