difference between AMD "A" and "B" cores?

[Bullion]

The three aforementioned cores dont actually make the chip do more work per clock cycle.
A palomino 2100 will run just as fast as a 2100 tbred B at the default speeds. The Tbreds are usually factory unlocked and are more suited to overclocking. The tbredB cores being the best to overclock. My 2100tbredB aiuhb is @ 2275MHZ (13*175) where as my 1800 tbred A could only do 1900mhz and my palomino 1800 only did 1700mhz. The tbreds require better cooling as there core surface area is smaller. This is slightly offset by thier lower core voltage.

[rourkchris]

Thanks for that link Daveleau, cleared up any confusion for me. Much appreciated.

[rpertusio]

As posted in another thread..

I found this site helpful in identifying an AMD (K7) processor. It isn't in english, but.. rather simple to read the chart.

white = tbred B
dark Grey = tbred A
light grey = palomino

http://articles.cpuwars.com/k7s.shtml