hmmm they reach about 4 ghz on air preaty nice for a quad. there about 40% faster then conroe/kentsfield. alltho it sucks for me as teh canadian dollar's gone to **** worth 81c of an american dollar. my q6600 now is mroe expensive tehn when i first bought it, that goes for all my parts really how messed is that. alltho my bonus is i will have great resale vaule especialy considering i have such a great chip. they retail right now for 280$ over here.