GeForce GTX 680M SLI and GeForce GT 745M - video card comparison
GeForce GTX 680M SLI
GeForce GT 745M
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
N13E-GTX
N14P-LP/GS
Market segment
Laptop
Laptop
Release date
June 2012
April 2013
Bus support
-
PCI Express 3.0
Interface
-
PCIe 3.0 x16
SLI options
+
-
Core clock speed
720 MHz
837 MHz
Floating-point performance
-
642.8 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
-
1,270 million
Pipelines / CUDA cores
2688
384
Power consumption (TDP)
-
45 Watt
Texture fill rate
-
17.57
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
2x 4 GB
2 GB
Memory bus width
2x 256 Bit
128 Bit
Memory clock speed
3600 MHz
1800 MHz
Memory bandwidth
-
64 GB/s
Shared memory
-
-
Standard memory configuration
-
DDR3/GDDR5
Display Connectors
-
No outputs
eDP 1.2 signal support
-
Up to 3840x2160
LVDS signal support
-
Up to 1920x1200
VGA аnalog display support
-
Up to 2048x1536
DisplayPort Multimode (DP++) support
-
Up to 3840x2160
HDCP content protection
-
+
HDMI
-
+
7.1 channel HD audio on HDMI
-
+
DirectX
11
12 API
CUDA
+
+
OpenCL
-
1.1
OpenGL
-
4.5
Shader Model
-
5.1
Vulkan
-
1.1.126
3D Vision / 3DTV Play
-
+
Blu-Ray 3D Support
-
+
H.264, VC1, MPEG2 1080p video decoder
-
+
Optimus
+
+
TrueHD and DTS-HD audio bitstreaming
-
+