I recently bought an Oculus Quest and my buddy was bugging me to try the PC Link Beta for it, but I didn't have a gaming rig.
What I had was an i7 3770, 16 GIg DDR 3 and 2 10000 RPM spinners in a rig I had used for training on hypervisors back in 2012.
I tossed in a 1660ti and a couple SSD's and I"m amazed that I can play just about all the games I've tried on Epic with frame rates over 100 (1080p)
The exception is Asgard's Wrath... it's a freaking bohemith 120 Gig game that is certain the best looking VR game I've seen to date and I have about 30 of them.