We've been waiting a long time for the AMD chip known as Kaveri, but at least now we have a date for its availability: January 14th. We also know that the flagship desktop part for FM2+ socket motherboards will be called the A10-7850K, that it'll use four Steamroller CPU cores clocked at 3.7GHz, and that it'll incorporate the same TrueSound audio processing technology found on AMD's latest Radeon graphics cards. What we don't know for sure is how much this A10 chip will cost, or whether it'll arrive first as a standalone part or in pre-built systems. But either way, we're about discover something important: namely, whether the next-gen "Heterogeneous Systems Architecture" (HSA) that AMD has been boasting about, and which is supported for the first time on Kaveri, is actually worth its syllables. Read on for more.