During the processor wars from several years ago, speed was the name of the game. Then suddenly it became a battle for cores. Now, however, AMD is combining both of them as it just unveiled the first-ever processors running at 5GHz: the FX-9590. These new FX processors pack eight cores and are based on Piledriver, but the pure speed of the FX-9590 is something special. It's the first commercially available 5GHz processor, but from a company that broke the 1GHz mark in 2000, it's just another record in a long line of them. Initially, the AMD FX 9000 series will be available from system integrators (like MAINGEAR, iBuyPower, and the like) this summer, so you'll have to buy a PC already equipped with the FX-9590. Eventually it'll be available as a separate component later on, just AMD isn't ready to say when.
AMD is also launching the FX-9370, another eight-core model, but it comes in at a slightly more modest 4.7GHz. Both CPUs support Turbo Core 3.0 technology to improve and maximize performance for demanding tasks.
Source: Press Release