Strange, I have never really noticed a performance difference in or around ul'dah so I've never bothered to check what my usages and I'm running a substantially less powerful card (560ti OC) - that said I'm not running the game at absolute max settings.

I did notice a substantial performance increase when I moved my install to an SSD though, I think it relates to when you load an area full of people the game loads all the armor and weapon models off disk so your frame buffer size makes no difference to performance. Raid 0 is fast but 200mb/s sounds fast for two even top of the line drives in random read/writes, is that sequential performance? If so that isn't what the game will get when loading resources off disk.

In case that sounded condescending I will just say here I'm not trying to be, I'm doing some upgrades and am genuinely curios as to where the bottlenecks happen.