Maximum number of connected devices to MT7621AT Router


I'm going to buy a new router MT7621AT (CPU 880MHz, DDR3 512MB), but need to know, What's the maximum number of concurrent devices can be connected to the router through wifi?
According to what I concluded from what I read ,it is related to the CPU and RAM
I know that the exact number cannot be given, but I only need an approximate number.

Thank you