up is right.. upup u know about new celeron ? new celeron is using northwood, same chip with p4 . newest celeron is using prosccot , same as newest p4, maybe we can call it p5, some motherboard already call p5xxx.. sure 1 thing i know, barton 2500+ and 2600+ already discontinue. no more lol...sampron is instead lowest grade barton. i read some pc website, i don't think sampron can do better than barton. like p4c and p4e