Nope
Compare e8400 to e6850 (both exact same speed)
e8400 uses the Wolfdale Core, e6850 uses the Conroe
the e8400 costs Intel Cheaper to make, runs cooler, overclocks better and consumes less power, faster clock per clock to the e6850
however the Quad 45nm's just suck in my opinion, even though they are faster clock per clock, they use 1333fsb which means a lower multiplier, and less OC'ing ability unless you have a board that can do really high FSB