
GeForce GT 645M and GeForce GT 740M - video card comparison
Passmark - benchmark score GeForce GT 645M vs GeForce GT 740M
GeForce GT 645M
957
GeForce GT 740M
816
GeForce GT 645M
GeForce GT 740M
Architecture
Kepler (2012−2018)
Kepler (2012−2018)
GPU code name
N13P-GS
N14P-GV2, ...
Market segment
Laptop
Laptop
Release date
March 2012
March 2013
Bus support
PCI Express 2.0, PCI Express 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Boost clock speed
-
980 MHz
Core clock speed
Up to 710 MHz
810 MHz
CUDA cores
384
-
Floating-point performance
544.5 gflops
752.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,270 million
915 million
Pipelines / CUDA cores
384
384
Power consumption (TDP)
32 Watt
45 Watt
Texture fill rate
22.7 billion/sec
31.36
Memory type
DDR3\GDDR5
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
128bit
64/128 Bit
Memory clock speed
1800 MHz
1600 - 1800 MHz
Memory bandwidth
Up to 64.0 GB/s
14.4 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
-
+