bit-tech published a review of Intel Core 2 Duo E8500, E8400 and E820
A quote from the article:
>> Intel Core 2 Duo E8500, E8400 and E8200 Review
Just like the QX9650 and QX9770 the 45nm products are the ones to aim for if you're considering and Intel upgrade, however /unlike/ the Extreme Edition CPUs, the Wolfdales are *affordable*. In fact, every CPU featured was affordable, the only exception is the Q6700 at £311.
If you're heavily into multi-threaded applications or serious multi-tasking, then a quad-core processor will offer a greater performance and space to breath. If you're a gamer though, a high clocked dual-core with plenty of memory bandwidth is certainly the way to go - the Wolfdales will oblige in every aspect.
>> Intel Core 2 Duo E8500, E8400 and E8200 Review