Download Belarc from here ➡
http://www.belarc.com/free_download.html
And read the results page you will get.You will find all the infos about your system.
A simplest way is to right click on My Computer then hit Manage/Device Manager.There you can see your systems specs.
The ones that we are interesting to know is your PROCESSOR,and DISPLAY ADAPTER.
Also right click again in my computer and then click Properties...you will see your systems RAM(memory) that we have to know too.
Did this problem appears right after FS installation or suddenly after a long time using?Did you add or remove something recently?
Let us know more in order to be more helpful. 😉