These are random freezes so you can't really measure their periodicity. You can play without getting one. I'll say it depends on how long you're playing.
Also I confirm it tends to give a boost in some games. I've noticed this in some very demanding games (still haven't done this list btw )
Also I confirm it tends to give a boost in some games. I've noticed this in some very demanding games (still haven't done this list btw )
[color=#ff0000][color=#006600]i5 3570K @ 4.5GHz/GTX 660 Ti/RAM 4GB/Win7 x64[/color][/color]