It seems that the launch of the FX-series chips has been pushed to mid-October as management wanted to make the launch lineup "broader and more competitive". Seven Zambezi CPUs are expected to arrive in Q4 2011, with more models expected to follow by February 2012.

In a bid to improve competitive positions of its FX-series "Zambezi" lineup due to become available in the fourth quarter of this year, AMD decided to broaden it to seven models: four eight-core FX-8100 versions, one FX-6100 flavour and two FX-4100 central processing units, according to a source close to the company, which asked to remain anonymous. The increased amount of SKUs [stock keeping units] will help AMD to better position its models and make them appealing to particular customers with unique needs.

In addition to the model FX-8120 (which will be available in 95W and 125W flavours), which fills the gap between the FX-8100 and FX-8150 and allows AMD to broader the lineup of expensive eight core-chips, AMD also plans to introduce high-speed quad-core FX-4170, which will have default clock-speed of 4.20GHz and will thus offer extreme performance for its price-point.