17.04.2009, 17:46
to answer the first question the higher overclock could be slower because of overheating. When the parts overheat, not only can they be damaged and crash, but transistors inside the various processors and graphics processors are less efficient as they overheat, which can actually lead to a decrease in system performance. Also it is best not to use programs to overclock. read up about it and use the system BIOS to overclock a bit at a time 
Also whether different amounts of FPS look different depends on the game. For instance Fallout 3 even at v-synced 60FPS doesn't look smooth, whereas Crysis at 60FPS is the best looking game you will see. Flight sims tend to have lower FPS requirements, what i mean is they look ok at lower fram-rates such as 30-45 FPS because the action is slower paced compared to a first person shooter, for instance
Also whether different amounts of FPS look different depends on the game. For instance Fallout 3 even at v-synced 60FPS doesn't look smooth, whereas Crysis at 60FPS is the best looking game you will see. Flight sims tend to have lower FPS requirements, what i mean is they look ok at lower fram-rates such as 30-45 FPS because the action is slower paced compared to a first person shooter, for instance