Superpi/pifast and 3dmark are good comparisons, and with the former I dont think any p4 will keep up with a 2.8ghz amd, the latter can be seen on the orb, like 12th position beating everything upto 3.5ghz p4, thats likely to be mostly mem bandwidth limitations of amd compared to rambus or ddr pulled up p4 scores...

]JR[