Anyone using P4B 2.2GHz's to O/C yet?

Duvie

Elite Member
Feb 5, 2001
16,215
0
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Hey Madrat....

I thought p4b's were code name for the new 533fsb northwoods, right??? No combination of multiplier and 133fsb can make 2.2ghz....

2.4 p4b = 18 x 133fsb....

2.267ghz = 17 x 133
2.133ghz = 16 x 133

so I don't see how a 2.2ghz can be a p4b....

As far as I know the new p4b's were the 2.4ghz and 2.53ghz chips....
 

zzzz

Diamond Member
Sep 1, 2000
5,498
1
76
may be 16.5..AMD had used half multipliers..Does intel use them too?
 

Duvie

Elite Member
Feb 5, 2001
16,215
0
71
They did I believe with the p3 and the 133fsb, but I have yet to see them do it with the p4....northwoods didn't use odd multipliers...where is the 17x,19x,21x,23x???? just 1.6,1.8,2.0,2.2, & 2.4ghz chips....Looking at the roadmap I would think though the chips listed suggest we wont see 1/2 multipliers anyways...
 

MadRat

Lifer
Oct 14, 1999
12,009
320
126
P4A = old stepping of .13 P4 145mm^2 surface area
P4B = new stepping of .13 P4 131mm^2 surface area

Compare to T-bred at 84mm^2 surface area