Radeon R9 M290X Crossfire and Radeon HD 7970M Crossfire - video card comparison
Radeon R9 M290X Crossfire
Radeon HD 7970M Crossfire
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Neptune CF
Wimbledon XT
Market segment
Laptop
Laptop
Release date
March 2014
May 2012
Boost clock speed
900 MHz
-
Core clock speed
850 MHz
850 MHz
Manufacturing process technology
28 nm
28 nm
Number of transistors
2x 2800 Million
-
Pipelines / CUDA cores
2560
2560
Power consumption (TDP)
200 Watt
200 Watt
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 4 GB
-
Memory bus width
2x 256 Bit
2x 256 Bit
Memory clock speed
4800 MHz
4800 MHz
Shared memory
-
-
DirectX
12 (FL 11_1)
11.1