So, wait. Bulldozer was released after Phenom-II and delivered worse performance. Now Trinety will replace Llano and also delived worse performance!
AMD's upcoming "Trinity" family of desktop and mobile accelerated processing units (APUs) will use up to four x86-64 cores based on the company's newest CPU architecture, codenamed "Piledriver". AMD conservatively estimated performance/clock improvements over current-generation "Bulldozer" architecture, with Piledriver. Citavia put next-generation A10-5800K, and A8-4500M "Trinity" desktop and notebook APUs, and pitted them against several currently-launched processors, from both AMD and Intel.
It found integer and floating-point performance increases clock-for-clock, against Bulldozer-based FX-8150. The benchmark is not multi-threaded, and hence gives us a fair idea of the per core performance. On a rather disturbing note, the performance-per-GHz figures of Piledriver are trailing far behind K12 architecture (Llano, A8-3850), let alone competitive architectures from Intel.