GeForce 940M and GeForce GTX 950M Mac Edition - video card comparison
GeForce 940M
GeForce GTX 950M Mac Edition
Architecture
Maxwell (2014−2018)
Maxwell (2014−2018)
GPU code name
N16S-GT-S/B
GM107
Market segment
Laptop
Desktop
Release date
March 2015
March 2015
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x8
MXM-B (3.0)
Boost clock speed
1176 MHz
1124 MHz
Core clock speed
1072 MHz
993 MHz
Floating-point performance
903.2 gflops
1,271 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,870 million
1,870 million
Pipelines / CUDA cores
384
640
Power consumption (TDP)
75 Watt
75 Watt
Texture fill rate
28.22
44.96
Memory type
DDR3
DDR3
Maximum RAM amount
4 GB
2 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
2000 MHz
1800 MHz
Memory bandwidth
14.4 GB/s
28.8 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
1.1.126
1.1.126
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-