No, a Pentium D would be faster then the Pentium 4, it's the same thing but two processors in one. Yes it's a great overclocking chip, but you'll have to buy a 60$ fan to cool it. I really don't recommend them though, Pentiums are old and it's time to move on and invest in the present and not the days of yesterday. The reason why I say this, is because you'll probably need to buy high clocked ram to reach the clocks you want to reach, but why invest into DDR when DDR2 is already here and DDR3 is going to be released to the public in the summer. Though it won't be mainstream and will be as expensive as [bleep]. Not to mention you'll have to increase the voltages, people have read articles that claim they have reached 4.1GHz, this is true, but around the 3.6GHz area you have to up the voltages. With the increased voltages and massive amouts of heat (even more heat from the voltage increase) the processor will only last around 6 months. No i'm not kidding, if you keep the overclock at this point for 100% of the time you use it, that's all it'll last. So it's up to you.
If you want a great overclocking chip I highly recommend the E4300 or the E4400 Core2duo chips. But you'll be forced to upgrade you ram, motherboard, CPU and probably a new fan, stock coolers can't hold a match to aftermarket coolers (most anyways).
Edited by james_8970, 25 April 2007 - 09:22 PM.