JC kreegt een aantal AMD geruchten toegestuurd van een tipgever die zegt dat hij de scoop kreeg op een door AMD gesponsord zakendinner in Dallas. In hoeverre onderstaande informatie klopt is niet duidelijk, maar er zitten in ieder geval interessante stukjes tussen. Volgens de tipgever krijgt de Thunderbird 512KB cache en is deze daarmee 27,5% sneller dan de huidige Athlon:
Spitfire:
* ...will have 256K cache (did he mean L1+L2 or just counting L2? Previous rumours have said 128K L1 + 128K L2)
* ...will be socket only
* ...will be available some time in Q2Thunderbird:
* ...will have 512K cache (Previous rumours have said 128K L1 + 256K L2)
* ...will have "additional pipeline enhancements" (no idea what to make of this)
* ..."will clock for clock be 27.5% faster than K75 on a kx133 MB" (K75 is the code for a 180nm Athlon -- I presume this claim is limited to specific benchmarks)
* ...will be available for Socket A and Slot A
* ...will achieve volume shipments in late Q2Mustang:
* ...will be available in Q3
* ...will have 1024KB cache (if referring to L2, this'd be more or less in line with current belief)
* mobile version will have a smaller package and will be out at the same time as regular Mustang.Sledgehammer:
* ...will be out in 2001 Q1
* ...will have a full 32/64-bit core (Edit: Sorry, typo!)
* ...will have 2MB on-die cache
* ...will be on a 150nm process (partial shrink?)
* ...will be capable of 2GHz operation (at start?)