GeForce GT 640 and GeForce MX450 - video card comparison
Passmark - benchmark score GeForce GT 640 vs GeForce MX450
GeForce GT 640
1209
GeForce MX450
3845
GeForce GT 640
GeForce MX450
Architecture
Kepler (2012−2018)
Turing (2018−2021)
GPU code name
GK107
N17S-G5 / GP107-670-A1
Market segment
Desktop
Laptop
Release date
June 2012
August 2020
Interface
PCIe 3.0 x16
PCIe 4.0 x4
Supplementary power connectors
None
None
Boost clock speed
-
1575 MHz
Core clock speed
902 MHz
1395 MHz
Floating-point performance
692.7 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
1,270 million
4,700 million
Pipelines / CUDA cores
384
896
Power consumption (TDP)
65 Watt
25 Watt (12 - 29 Watt TGP)
Texture fill rate
28.86
100.8
Memory type
DDR3
GDDR5, GDDR6
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1782 MHz
10000 MHz
Memory bandwidth
28.51 GB/s
64.03 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x DisplayPort
No outputs
HDMI
+
-
DirectX
12 (11_0)
12 (12_1)
CUDA
3.0
7.5
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2
Optimus
-
+