Judging from your screenshot i would consider the RAM to be the culprit. If you're running dual channel try to run with only one DIMM and/or run memtest. See you around!
What you people don't seem to understand is: a broken video card is a sign from God.
But I don't think it's the games that are doing it. I think I remember reading on reddit that the viruses embedded in salad-tossing instructional videos specifically target graphic processors.