GeForce GTX 680MX and GeForce GT 755M SLI - video card comparison
GeForce GTX 680MX
GeForce GT 755M SLI
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
-
N14P-?
Market segment
Laptop
Laptop
Release date
October 2012
November 2013
Bus support
PCI Express 3.0
-
SLI options
+
-
Core clock speed
720 MHz
980 MHz
CUDA cores
1536
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
3540 Million
2x 1300 Million
Pipelines / CUDA cores
1536
768
Power consumption (TDP)
122 Watt
2x ~50 Watt
Texture fill rate
92.2 billion/sec
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2x 2 GB
Memory bus width
256 Bit
2x 128 Bit
Memory clock speed
2500 MHz
5400 MHz
Memory bandwidth
160 GB/s
-
Shared memory
-
-
DirectX
12 API
11
CUDA
+
+
OpenCL
1.1
-
OpenGL
4.5
-
3D Vision
+
-
Optimus
+
-