pentium 4 northwood how many diferent variations of fsb

[lingy]

can any body help with this i'm wanting to change my system to p4 but i was under the impression that the Northwood proccesor was 533mhz fsb only and not hyper thread active, but i have been told that there are three variations of Northwood 400mhz, 533mhz and 800mhz, if this is true is the 800mhz Northwood processor better than the normal 800mhz p4.

Thanks in advance best regards,

Lingy.

[Piccoro]

The first P4 core was Willamette (100Mhz FSB x 4 = 400 rated fsb)
The next core was Northwood (100Mhz FSB x 4 = 400 rated fsb)
Nice little review Willamette (2Ghz) V.S. Northwood (2Ghz and 2.2Ghz) V.S. Athlon XP 2000+ (1.67Ghz)

Then for 2.5ghz and up, Intel made 533 rated fsb models (133Mhz FSB x 4).
These actually made the P4 competitive in some general apps with Athlon Xp but improved a lot for multimedia apps.
Then they made models 2.4ghz and up with 800 effective FSB (200Mhz FSB x 4)
These suckers beat the Athlon Xp in some of their own favorite tests and improved in multimedia.

moral of the story:
If you buy a P4, don't settle for anything less than the 800FSB models if you can help it.