15x133 = about 2ghz or a model number of 2400+
16x133 = 2.1 or 2600+
so where's that put 2.5ghz
welp
133x19 = 2.5 3200+
assuming the model number goes up every 66mhz
In there lies the true crap about AMD Pr rating which is the reason they had a correctio with the tbred rev B's and wuold likely need another to get the true rating at those speeds....100pr points per 66mhz...Yeah Right!!! The Cpu does not scale that good let alone 150% better then mhz with a p4....
Go check out Toms hardware where he oc'd xp Rev B's to as high as 3200+ I believe and look at how it barely equaled or beat a p4 2.8ghz...
Since I have seen some getting 2.53ghz p4's to 3ghz which equals a 158fsb or 632 system bus and coupled with 424mhz ddr which should come very close to rdram 3.0ghz I think the 2.53ghz p4 would win...Let alone those are not the new c1 stepping chips which should take most all 2.53ghz if not 1.8's to 2.4 chips to 3ghz or beyond....
NOtice that in that thread he oc'd rev b tbreds of 133fsb so obviously the 166fsb chips (2700-2800) should do better at same fsb as well.
AMD Pr rating is definitely showing its age...Notice how now even with the amd mod the pr rating just me4ets p4 speeds where as in the past a pr rating was very conservative at best and often time way low compared to its p4 counterpart and I am even talking about the 2.0a northwood...