Hi this is my first post so forgive me if I miss anything. Recently I RMA'd my RTX 2060 a couple of months after purchase. It had stopped outputting to my monitor and had died. So I got an RMA replacement but after a week I tried playing some games on it (haven't done it until that point) and when I played any game the screen would like spasm and flicker? I don't know exactly how to describe it so I attached a vid. I have tried reinstalling drivers. I'm afraid that I might have to RMA the replacement which sucks because I paid $60 the first time to get it shipped and I'm kinda tight on cash. I'll probably keep it until my semester finishes because I need my computer for school.
 

RTX 2060 KO
Mobo: Asus Prime X-570P
Ryzen 5 3600
16gb ram
650W PSU Bronze 
 this is the video link: imgur.com/a/1tlHeYo
 
 

  A little hard to tell in that vid, but the distortion/artifacting seems pretty random.  You mention it happens in multiple games--is it only when gaming?  Do you see it happen running dxdiag for example?  If you didn't already use the DDU utility uninstalling your vid drivers that's worth doing before reinstalling again.  Try removing any OC settings, drop the resolution lower, etc. and see if you still have same problem or does it differ or go away?  If it turns out to be hardware-based you could try to remove and reseat the card if you haven't already.  You can check the ports on your card/check the vid cable ends too maybe?  If available, try using a known good cable/swap you cable to different system to verify good or if your monitor has other ports try using different port on the card than whichever your using now to see if you get same problem on DP/DVI/HDMI ports?  Maybe you only have bad vid cable or only different port on card works ok if it's something on the card itself if you wanted to try and get by thru end of term. Hope something there helps you figure out what's going on and/or helps you get by.