which one of these is better im running on the 2.66ghz p4 right now i just got it cuz i always thought p4 was better but what do you think for gaming sence i do alot of it?

The P4. Let us know what motherboard you have. Or, is it a manufactured system from hp or dell or another manufacturer? Skip

i got an asus mobo p4b533 478 socket, i have a celeron 2.9ghz, p4 2.8ghz, p4 2.66, p4 1.8, and p4 2.44 but the 2.8 ghz p4 doesnt seem to wanna work with my mobo =\

The P42.8 is probably a 800Mhz processor and would be a waste on your board. If it ran at the 533Mhz the board is capable of, you'd have a 1.86Ghz machine. The others work at either 400 or 533Mhz. The 533 in your P4B533 model number is the clue here. That is however, a swell 533Mhz motherboard and a good overclocker. Do you understand that Intel quad pumps their processor specifications? Like... 100Mhz=400Mhz=same thing 133Mhz=533Mhz=same thing Your P4 1.8 = 100Mhz(400Mhz)x18 multiplier and Your P4 2.66 = 133Mhz(533Mhz)x20 multiplier and Your Celeron = 133Mhz(533Mhz)x22 multiplier. For example, using your P4 2.66 the processor speed and overclocking settings are calculated by multiplying 133Mhz fsb times the processor multiplier. P4 2.66 @ default is 133x20=2660Mhz For the heck of it, lets say it'll run ok overclocked @ 160Mhzx20. Now you have a 3.2Ghz P4 as 160x20=3200. Kinda gettin' the idea? Skip

i would love to overclock this but the fan i have in this is kinda like rigged its from a dell i had to bend the vents on the back of my case to make the clips fit, my case is a navigator case which has about 6-7 fans in it i donno if thats enough with the rigged cpu fan if it is ill do some research on ocing cause the extra boost would help me greatly also my cpu temp runs at a regular 42-50 not loaded just idle kinda with like only 1 firefox open.