GeForce 840M and GeForce MX450 - video card comparison
Passmark - benchmark score GeForce 840M vs GeForce MX450
GeForce 840M
1121
GeForce MX450
3845
GeForce 840M
GeForce MX450
Architecture
Maxwell (2014−2018)
Turing (2018−2021)
GPU code name
N15S-GT
N17S-G5 / GP107-670-A1
Market segment
Laptop
Laptop
Release date
March 2014
August 2020
Bus support
PCI Express 2.0, PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 4.0 x4
Supplementary power connectors
-
None
Boost clock speed
1124 MHz
1575 MHz
Core clock speed
1029 MHz
1395 MHz
Floating-point performance
863.2 gflops
-
Manufacturing process technology
28 nm
12 nm
Number of transistors
-
4,700 million
Pipelines / CUDA cores
384
896
Power consumption (TDP)
33 Watt
25 Watt (12 - 29 Watt TGP)
Texture fill rate
17.98
100.8
Memory type
DDR3
GDDR5, GDDR6
Maximum RAM amount
4 GB
2 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
2000 MHz
10000 MHz
Memory bandwidth
16.02 GB/s
64.03 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (12_1)
CUDA
+
7.5
OpenCL
1.2
1.2
OpenGL
4.5
4.6
Shader Model
5.1
6.5
Vulkan
1.1.126
1.2
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
+