GeForce 940MX and GeForce 840A - video card comparison
Passmark - benchmark score GeForce 940MX vs GeForce 840A
GeForce 940MX
1561
GeForce 840A
1214
GeForce 940MX
GeForce 840A
Architecture
Maxwell (2014−2018)
Maxwell (2014−2018)
GPU code name
N16S-GTR-B/S
GM108
Market segment
Laptop
Desktop
Release date
March 2016
March 2014
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 3.0 x8
Supplementary power connectors
None
-
Boost clock speed
1242 MHz
1124 MHz
Core clock speed
1122 MHz
1029 MHz
Floating-point performance
762.6 gflops
863.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
-
Pipelines / CUDA cores
384
384
Power consumption (TDP)
23 Watt
33 Watt
Texture fill rate
23.83
17.98
Memory type
DDR3, GDDR5
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
64 Bit
64 Bit
Memory clock speed
4000 MHz
2002 MHz
Memory bandwidth
40.1 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
DirectX
12 (11_0)
12 (11_0)
CUDA
+
5.0
OpenCL
1.2
1.2
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1
1.1.126
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-