The Kaveri Steamroller core slower clock speed faster than the Trinity Piledriver core...
A8-5600K @ 3.60 GHz vs. Kaveri ES 3.5GHz
http://browser.primatelabs.com/geekbench3/compare/209001?baseline=223722
I do not know that the Family 21 Model 48 Stepping 1 marking the Kaveri 2.0 or not...