While its octa-core Ryzen 7 lineup is already up for pre-order with availability expected on March 2nd, the rest of the lineup will be coming later, with six-core Ryzen 5 lineup, which should compete with Intel's Core i5 Kaby Lake lineup, coming in Q2 2017, and the quad-core Ryzen 3 lineup coming sometime in the 2H 2017.
According to AMD's own slides from the press event held earlier this week, the Ryzen 5 1600X SKU should be able to compete with Intel's flagship Core i5-7600K SKU, offering up to 69 percent higher performance.
The AMD Ryzen 7 eight core lineup is selling like hotcakes -whatever they are - and is already on the top of Amazon's best seller list, with the Ryzen 7 1700X leading the way, but the six core and quad core parts may hit the sweet spot and let AMD regain market share.