AMD Ontario APU pictured,die size ~77mm^2

[STEvil]

Now I wonder... As I remember P-3 Coppermine was up to 30% faster the Katmai having only half cache size of Katmai (but at full speed). And Tualatin (512Kb) has increased the perf. by another 10-20%...

iirc there were some pretty significant core differences between Coppermine and Katmai as well, so you cant attribute the full performance difference only to the L2 design.