I guess Ill go with the core 2 duo, although http://www.cpubenchmark.net/cpu_lookup.php?cpu=Pentium+Dual-Core+E5200+%40+2.50GHz
lists the e5200 as being slightly better.
Also I've read various people saying that with the smaller process IE 45nm Vs 65nm there can be a 5 to 10 percent performance increase? Is there any truth to there being better performance per clock?
Again I will be overclocking either to about 3.5ghz so im not sure. Both seem to be able to reach this speed quite easily So I guess even overclocked the FSB would be higher on the 6700 as well as having twice the L2 cache.
The older architecture is really the only thing hindering my decision with some folks saying that the lower process runs better not just temp wise but slightly faster for some reason.