GeForce GT 745M and GeForce GT 645M - video card comparison
Passmark - benchmark score GeForce GT 745M vs GeForce GT 645M
GeForce GT 745M
1125
GeForce GT 645M
957
GeForce GT 745M
GeForce GT 645M
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
N14P-LP/GS
N13P-GS
Market segment
Laptop
Laptop
Release date
April 2013
March 2012
Bus support
PCI Express 3.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Core clock speed
837 MHz
Up to 710 MHz
CUDA cores
-
384
Floating-point performance
642.8 gflops
544.5 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
1,270 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
45 Watt
32 Watt
Texture fill rate
17.57
22.7 billion/sec
Memory type
DDR3, GDDR5
DDR3\GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
128bit
Memory clock speed
1800 MHz
1800 MHz
Memory bandwidth
64 GB/s
Up to 64.0 GB/s
Shared memory
-
-
Standard memory configuration
DDR3/GDDR5
-
Display Connectors
No outputs
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
+
-
HDCP
-
+
Maximum VGA resolution
-
Up to 2048x1536
DirectX
12 API
12 API
CUDA
+
+
OpenCL
1.1
1.1
OpenGL
4.5
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
3D Blu-Ray
-
+
3D Vision / 3DTV Play
+
-
Blu-Ray 3D Support
+
-
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
+
TrueHD and DTS-HD audio bitstreaming
+
-