Potomac is based on the 90nm Prescott core. The fastest Potomac CPU's (running at 3.0 and 3.33GHz) feature 8MB L3-cache. It's slower model, running at 2.83GHz, has to work with just 4MB L3-cache. These CPU's we're released on 29 March 2005 and quite expensive. Especially considering that these CPU's usually we're paired up in 4-way systems increasing total cost. Not to mention an expensive motherboard! > Read more