Difference between Pentium 4 cpu's

Hi all
I just purchased the Soyo limited edition SY-P4RC350 mobo off of Newegg.com because it was free after rebates. (who wouldn't want a free mobo, right?)
So anyway, this will be my first intel box and after looking at prices and names on P4 chips I'm wondering what the evolution and differences are between them.
2.8 - 3.0Ghz seems to be the sweetspot on price versus speed.
Looking at the 3.0Ghz chips at pricewatch I see several flavors:
$177  -  Pentium 4 3.0GHz Prescott
$177  -  Pentium 4 3.0GHz 800MHz 775
$169  -  Pentium 4 3.0GHz 800MHz
$200  -  Pentium 4 3.06GHz 533MHz  

Can anyone tell me what the differences are here?
Are these all HT?
Which would be the best all around chip out of the group? Why?
What kind of memory pairs up with your choice?
Thanks in advance for any advice.
GamerXXXAsked:
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Lee W, MVPTechnology and Business Process AdvisorCommented:
Don't bother with the 533MHz bus.  I'd pick either the Prescott or possibly the 775 - have to check a couple things first...
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Lee W, MVPTechnology and Business Process AdvisorCommented:
The 775 is the socket type - it's the newest, I believe.  If you're board is a 478, then the 775 won't do you any good.

Thus, I'd choose the Prescott.  I believe the other 800MHz chip is the northwood core.  The prescott is supposed to be faster, but I've seen benchmarks suggesting it's really a toss up and in some apps, might be slightly slowers.
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tosh9iiiCommented:
Are these all HT?

Yes

I agree with leew, I'd pick Prescott, mainly because of the 1mb cache.

Note:  if you're not in too much of a hurry to get a CPU, keep in mind that Intel is about to release a new P4 3.8 ghz.  Which means the prices will soon drop.

http://www.pcworld.com/news/article/0,aid,118424,00.asp
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GamerXXXAuthor Commented:
Thanks for the advice.
I've decided to go with the newer Prescott because of the larger L1 & L2 caches and since this is going to be an "extra" computer I've decided to hold off and see what the price drop on the 3.2 and 3.4 chips is going to be after this latest release.
Thanks for the link, tosh9iii
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