GeForce 920MX and GeForce GT 555M 3 GB - video card comparison
GeForce 920MX
GeForce GT 555M 3 GB
Architecture
Maxwell (2014−2018)
Fermi (2010−2014)
GPU code name
N16V-GMR
GF106
Market segment
Laptop
Desktop
Release date
March 2015
March 2011
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
None
None
Boost clock speed
993 MHz
-
Core clock speed
965 MHz
590 MHz
Floating-point performance
602.1 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
-
1,170 million
Pipelines / CUDA cores
256
144
Power consumption (TDP)
16 Watt
35 Watt
Texture fill rate
23.83
14.16
Memory type
DDR3, GDDR5
DDR3
Maximum RAM amount
2 GB
3 GB
Memory bus width
64 Bit
192 Bit
Memory clock speed
1800 MHz
1800 MBps
Memory bandwidth
14.4 GB/s
43.2 GB/s
Shared memory
-
-
Display Connectors
No outputs
Portable Device Dependent
DirectX
12 (11_0)
12 (11_0)
CUDA
+
2.1
OpenCL
1.2
1.1
OpenGL
4.5
4.6
Shader Model
5.1
5.1
Vulkan
1.1.126
N/A
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-