His Radeon hd 6790.
Fully upgraded drivers. Crashes randomly viewing videos in web browsers, or playing low graphic use games like LoL (thing runs sc2 for 20+hours no problem. Browse youtube for 20 minutes or play league for two hours... Not so much.) Has done this since I got it, generally a minor issue. At least, until the last crash, since now I get windows startup music and no graphics, which is, well, useless. Only OC is auto OC from the MSI motherboard's OC genie 2. Temperature is a near constant 30 degrees, regardless of graphic use.