Depending on what website you read, there seems to be a difference in perception regarding performance with the Athlon (Thunderbird).

http://www.anandtech.com/showdoc.html?i=1252&p=12

http://www.sharkyextreme.com/hardwar...d_1ghz/8.shtml

[This message has been edited by dieu (edited 06-06-2000).]