No idea. Probably 5 or more.
I did some more research...
The mwave's warranty is 30 day money back. Other than that, you send it to the manufacturer. I don't know how well they do that. Hypersonic's is onsite, send for 0 cost for the buyer back to Hypersonic, replace components etc, send back for free.
They don't have the 7200 RPM drive I want. Hypersonic does.
Mwave's processor is Banias, not Dothan. Hypersonic's is Dothan. That matters.
Hypersonic also has a prettier case.
Basically, the Hypersonic's will be faster. Probably very noticeable. They have a better warranty.
Just so you know, if you do consider buying from mwave. Tommrorow I'll be calling Hypersonic to sorta inquire if there is anything else I don't know about that makes them better. It is approx. $450 dollars less at mwave. I want to see what they have to say. I'm a bit timid, but I'll try my best to be assertive. Update tommorow.
Talk amongst y'selves.