Duron 1Gig

Been looking at some pictures of the Duron Gig chips there seems to be 2 types. 1 with 4 L1 "pins" and 1 with 5 L1 pins.... Are there 2 different versions of this chip?.... Someone was discussing this chip said it had a Morgan Core... do all these chips have this core or do some of them have the spitfire core as some of the pictures Ive seen suggest....

the 1ghz durons were made with both types of core
the ones with 4 L1's are spitfires
5 L1's indicates a morgan core

all other durons above 1ghz are morgan cored
i have a 1.2ghz