Im making a whole new computer and it will be cooled using cascade propane setup. Im looking for -50c LOAD temps or maybe better. I want a proccessor that will get me best performance and overclocking ability. I have been looking at the xp 1700 B cpus along with the barton 2500. Price rangs is around $130 max but the less I spend on the cpu the more I will have for a gfx card. I hear I can get maybe 3ghz out of the xp 1700 and about 2.7ghz maybe out of the barton 2500. Im guessing the barton is better, but by how much? because there is about a $70 price difference and I could use the money for a r9700 instead of a r9500 pro. There will be 1 gig of ddr 3500 ram a raid 0 setup of 60gb WD harddrives.