there is a 4000+ and I'm assuming it's better than the 3500+ but jumping from an Athlon XP 2500+ to the Athlon 64 3500+, you can see why I'm excited about this newer CPU. I wish I had $800 to get the 4000+ though, because overclocking that beast would be crazy (in a good way--not literally).
ohh yeahh, amd 64 is awsome its, fast and i think i can turn my computer into a refrigerator now, its sooo coldddd!!!!! lol but it aint overcocked, but get rid of the stock fan and it be the same.
The reason the Opterons are more $$$$ then the Athlon64's is simple. They are more powerful, run cooler, use ECC RAM, and have some unique abilities such as 31watt operation. Opterons OWN ALL!!!!!!!!!!!!!!!!!!!!!!!!!!!