Still do no understand the reason for disabling frosted blur on iPad 2 and iPad 3. iPad 2 gets exactly same chips with iPad mini and iPod Touch 5G, yet iPad mini and iPod Touch 5G gets all the effect. iPad 3's A5X gets exactly same processor but better graphic card, so it should get full effect as well
It doesn't perform as well on the amount of RAM on iPad, as its a bigger device.