Originally Posted by
Synthaxx
I know what you mean. There's a difference between FPS and smoothness. There is a point where FPS makes the game smooth, but until that point, it's very random on whether the game will be smooth or not. I've concluded it's 2x refresh rate, but this obviously depends on a lot of factors and i've not pinned it down to something that works all the time.
I'm very sensitive to this sort of thing. There's been times where the game has run like liquid and there's no jitter. However, most commonly there's high FPS but it's jittery, almost like frames are dropped, or frames are being pushed through in between screen refreshes. It's not ruining gaming experience, but when it's fluid, it's immediately visible that something changed. Once, in Ulduar, we were on Vezax and although it was a wipe (with the exception of 2 people still alive), my FPS suddenly just went ridiculously smooth. It was an actual noticeable change even though my FPS was the same.
SLI causes some issues with smoothness even if pure FPS is way above double refresh rate, but that can be explained by the slight delays as the system decides which GPU should render which frame.
Screen tearing isn't something i notice and isn't something that bothers me (even with high FPS, i just don't notice it, never have done), but jitter happens regardless of what's going on, and it's noticeable when flying in a straight line over simple terrain (such as the rocks on top of Orgrimmar where the flight master is, or out in the barrens). It's difficult to see for most people, but i spot it instantly when i decide to start looking.
Triple buffering might help along with VSync.
He never said in raids. I can get 250FPS in quiet zones and BG's (and even 10 man raids), and hell, indoors, i can push upwards of 450FPS. 25 player raids are always going to limit you to about 45FPS max, and some bosses will bring you closer to 30.