Difficulties with the 28 nm process, according to NVIDIA head , seems to develop very specific disadvantages for consumers. Apple has not been able to obtain assurances of mobile graphics solutions Kepler generation supply in sufficient quantities. The new generation Apple laptops will be equipped with old NVIDIA graphics.
The high end Apple notebook configurations will use the graphical solutions Kepler, in the middle price range they are much rarer, and more affordable in general limited to notebooks with integrated graphics processors Ivy Bridge.
Associate reports that the GeForce GTX 680 will become a scarce commodity as soon as the first batch will be sold. TSMC can not produce 28 nm chips NVIDIA in sufficient quantities.