GeForce GTX 680M SLI and GeForce GT 755M SLI - video card comparison
GeForce GTX 680M SLI
GeForce GT 755M SLI
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
N13E-GTX
N14P-?
Market segment
Laptop
Laptop
Release date
June 2012
November 2013
SLI options
+
-
Core clock speed
720 MHz
980 MHz
Manufacturing process technology
28 nm
28 nm
Number of transistors
-
2x 1300 Million
Pipelines / CUDA cores
2688
768
Power consumption (TDP)
-
2x ~50 Watt
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 4 GB
2x 2 GB
Memory bus width
2x 256 Bit
2x 128 Bit
Memory clock speed
3600 MHz
5400 MHz
Shared memory
-
-
DirectX
11
11
CUDA
+
+
Optimus
+
-