Radeon HD 6990M Crossfire and GeForce GTX 260M SLI - video card comparison
Radeon HD 6990M Crossfire
GeForce GTX 260M SLI
Architecture
Terascale 2 (2009−2015)
G9x (2007−2010)
GPU code name
Blackcomb XTX
NB9E-GTX
Market segment
Laptop
Laptop
Release date
July 2011
March 2009
Core clock speed
715 MHz
550 MHz
Manufacturing process technology
40 nm
55 nm
Number of transistors
2x1700 Million
1508 Million
Pipelines / CUDA cores
2240
224
Power consumption (TDP)
-
150 Watt
Memory type
GDDR5
GDDR3
Maximum RAM amount
2x2 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
900 MHz
950 MHz
Shared memory
-
-
DirectX
11
10
CUDA
-
+