Anarchist4000
Veteran
Not an APU, but the upcoming Zen/Vega APUs are in theory MCMs. So a 4/8 core Zen alongside Vega and HBM on an interposer. The size is ultimately how much chip can fit on the interposer and be cooled. Bigger chips at more conservative voltages could hit that target. The upcoming Project Quantum AMD has been toying with is allegedly Zen + dual Vega in a 9.5 in square case and water cooled. That would make one heck of a console. The big HPC Zen was allegedly 16 cores with a GPU attached and not exactly cheap.That's not an APU, though. See comments in the response I made to @Anarchist4000.