AMD's first wave of FX series high performance desktop processors will hit stores on 19 September, 2011, according to industry sources. On that day, AMD will launch two 8-core models: FX-8100 and FX-8150; a 6-core model, the FX-6100; and a 4-core part: FX-4100. The much yapped about "FX-8130P" that has been a CPU-Z screenshot favourite, is not a part of AMD's finalized lineup. Earlier it was rumored that models with the "P" brand extender were unlocked parts, but now it's emerging that all parts in the FX series are unlocked. Detailed specifications are tabled below.
In the first quarter of 2012, AMD plans its second round of product launches, which consist of faster models that display existing ones from their price-points. The FX-8170 will displace the FX-8150, the FX-8120 displaces FX-8100; FX-6120 displaces FX-6100; and FX-4120 displaces FX-4100. In the meantime, AMD is working with motherboard vendors to ensure adequate propagation of socket AM3+ motherboards, and more importantly, for DDR3-1866 MHz memory to become more affordable, since FX processors yield the most optimal performance with that memory speed.
Source: MyDrivers