GeForce GT 640M LE and GeForce MX450 - video card comparison
Passmark - benchmark score GeForce GT 640M LE vs GeForce MX450
GeForce GT 640M LE
720
GeForce MX450
3845
GeForce GT 640M LE
GeForce MX450
Architecture
Fermi / Kepler (2012)
Turing (2018−2021)
GPU code name
N13P-LP
N17S-G5 / GP107-670-A1
Market segment
Laptop
Laptop
Release date
March 2012
August 2020
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 2.0 x16
PCIe 4.0 x4
Supplementary power connectors
-
None
Boost clock speed
-
1575 MHz
Core clock speed
Up to 500 MHz
1395 MHz
CUDA cores
Up to 384
-
Floating-point performance
384.0 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
585 million
4,700 million
Pipelines / CUDA cores
384
896
Power consumption (TDP)
20 Watt
25 Watt (12 - 29 Watt TGP)
Texture fill rate
Up to 16.0 billion/sec
100.8
Memory type
DDR3\DDR5
GDDR5, GDDR6
Maximum RAM amount
2 GB
2 GB
Memory bus width
128bit
64 Bit
Memory clock speed
1800 - 4000 MHz
10000 MHz
Memory bandwidth
Up to 28.8 GB/s
64.03 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
Up to 2048x1536
-
DirectX
12 API
12 (12_1)
CUDA
+
7.5
OpenCL
1.1
1.2
OpenGL
4.5
4.6
Shader Model
5.1
6.5
Vulkan
N/A
1.2
3D Blu-Ray
+
-
Optimus
+
+