Intel and AMD have different clock speeds, so an AMD 2GHz processor will run similar to an intel 3Ghz
Erm, No! When AMD moved from the 'Thunderbird' class of Athlon to the XP, they included a number of technology enhancements in the core of the processor - this meant that a simple comparison between T'BIrd and XP processors on the basis on Megahertz alone would give very misleading results, and understate the actual performance of the XP.
If you compare an XP and a T'Bird running at the same clock speed, the XP will be significantly faster in actual performance.
So AMD did a huge series of benchmark tests using some 35 industry standard benchmarks on the XP's and T'Birds, and created a rating that compares relative performance of the XP with the speed a T'Bird would need to be to give that same performance.
Despite many pronouncements by people that should know better, including some magazines, it is NOT any form of a comparison to Intel processors, whether that be the P4 or anything else.
The logic behind this is that people want a yardstick to measure the performance they are actually paying for, and that clock speed (Megahertz) is no longer a good reflection of comparitive performance.
Posting drivel here since Jan 31st, 2002. - That long!
"He who laughs last, thinks slowest."