Can I upgrade my laptop

Aug 10, 2018
Laptop Model- Acer Aspire E1-531
Ram capacity currently - 4GB DDR3
Processor - Intel B960 2.2GHz

i need to know if i can upgrade my ram from 4gb to 8 gb?
and if i upgrade my ram will i get a fps boost in games.

and also i need to know which ram model should i buy. A ebay link or something should work