Radeon HD 8970M Crossfire and Radeon R9 M290X Crossfire - video card comparison
Radeon HD 8970M Crossfire
Radeon R9 M290X Crossfire
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Neptune CF
Neptune CF
Market segment
Laptop
Laptop
Release date
May 2012
March 2014
Boost clock speed
900 MHz
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
11.1
12 (FL 11_1)