AMD replaced the 8 core processors montreal by the six-core processors istanbul, then this company will present the magny-Cours processors with twelve core. This Last, will be the assembled by two six-core processors sao paulo.
But why AMD decided to reduce the number of core from eight to six ? , we could only surmise. One of the reasons is completely intelligible - six-core processor will have a smaller crystal area, and therefore they will be cheaper than the 8 core processor, produced on analogous technology. If we consider that AMD is assembled to pass on 45 nm technical process up to 2010 , this is an important factor for the company .
The second reason for passage from the 8 core processors to the the six-core lies purely on the ideological level. Intel company will present its six-core processor unnington with single chips already in the present year. AMD then will propose similar products with the same quantity of core and single chip layout, released on 45 nm technology.
In addition, according to AMD opinion , the productivity of many tasks can be well scaled with increase in the number of core to six pieces . With More than six cores , task simply will not be as effective .
In 2011 AMD company can present the 8 core and 6 core processors with the new sandtiger architecture , which will be released on 32 nm technology.