>The "1800+" model number (it is _not_ the MHz speed) means "this is as >fast or faster than a Pentium 4 going at 1800MHz".
I think the PR rating is the equivalent speed compared to the Thunderbird based Athlons (the ones that went up to 1.4GHz. I think they may get into hot water if they compared them directly to the P4....it just happens that they do compete very well :)
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