GeForce GTX 680M and GeForce GT 740 OEM - video card comparison
GeForce GTX 680M
GeForce GT 740 OEM
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
N13E-GTX
GK106
Market segment
Laptop
Desktop
Release date
June 2012
April 2015
Bus support
PCI Express 3.0
-
Interface
MXM-B (3.0)
PCIe 3.0 x16
Supplementary power connectors
None
None
SLI options
+
-
Boost clock speed
758 MHz
-
Core clock speed
720 MHz
1050 MHz
CUDA cores
1344
-
Floating-point performance
2,038 gflops
772.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
3,540 million
2,540 million
Pipelines / CUDA cores
1344
384
Power consumption (TDP)
100 Watt
65 Watt
Texture fill rate
80.6 billion/sec
33.60
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
1 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1800 MHz
5012 MHz
Memory bandwidth
115.2 GB/s
80.19 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 API
12 (11_0)
CUDA
+
3.0
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
Optimus
+
-