I would say all games that would use a big amount of power? Like I can play mini games or small games with no problem but once it gets up to like league of legends or games that uses more power it crashes.
If it doesn't crash with furmark (try running it more than once though, it could just be luck that it didn't crash) it's less likely that the GPU is the problem but it could still be an hardware issue. Try downgrading the video drivers and see if anything changes. Also, does it happen on all games or just League of Legends?
Recently until now I had the previous video drivers. Still crashed with the previous one.
I'll run furmark 2 more times and see what happens.