MB Review takes a look at Intel's Beast:

The race to have the first dual core processors on the market has come to an end. Both AMD and Intel have launched their respective dual core processors, AMD with the Athlon 64 X2 series, and Intel sporting the Pentium D’s and Extreme Edition. AMD was the first to disclose plans for a dual core processor, and Intel soon followed after the well documented problems of reaching the 4.0GHz barrier with the “Prescott” core due to tremendous power requirements..



Link: MB Review