GeForce GTX 675M SLI and Radeon HD 6645G2 - video card comparison
GeForce GTX 675M SLI
Radeon HD 6645G2
Architecture
Fermi (2010−2014)
Terascale 2 (2009−2015)
GPU code name
N12E-GTX2
-
Market segment
Laptop
Laptop
Release date
January 2011
June 2011
SLI options
+
-
Core clock speed
620 MHz
-
Manufacturing process technology
40 nm
40 nm
Pipelines / CUDA cores
768
560
Power consumption (TDP)
2x 100 Watt
-
Memory type
GDDR5
-
Memory bus width
256 Bit
-
Memory clock speed
3000 MHz
-
Shared memory
-
-
DirectX
11
11
CUDA
+
-
Optimus
+
-