I saw the Techquickie on Anti-Aliasing in the recommended, and since I didn't quite know how AA worked, I watched. A few techquickie videos later, I found LTT but it took me a moment to realize they were the same person
There is a computer(desktop) at my school, that hardkills itself after it's been left alone for over 15 minutes, then simply reboots to the windows recovery selection dialog, resumes normally, then the process repeats... It's kinda scary to watch it continuously reboot and hardkill...
I personally can't tell much above 40 FPS, but anything below becomes visible, 24 is pretty weak (and this is coming from someone with a mere IHD 3000)
Personally, I find 7 to be a superior OS, at least for gaming, as 8 has murdered a lot of games for me, and is simply a less convenient OS.
Game info: I have observed FPS drops of up to 70%, along with major fullscreen glitches in Windows 8.