GlobalFoundries revealed it takes about one year to get a CPU onto retail shelves once the chip reached tape out status. GPUs on the other hand are expected to need about three to six months.
According to top Globalfoundries engineers, if all goes well from the moment a CPU manufacturer tapes out a new CPU until the moment the product hits the shelves, we are talking about at least one year.
CPU manufacture is much more complex and takes more time than making a GPU and if the new AMD CPU will ship in Q3 2011, it better be taped out by middle of next year. The new K10.5 quad and dual-core revision that should start shipping in Q2 2010 has most likely been taped out by the middle of 2009 and this new core revision can provide some higher clocks and lower TDPs.