In addition to information on processors and Intel's roadmap (Grosse Intel roadmap), you learn a little more about IGP in certain versions of Intel processors. While versions for desktop computers have a fixed frequency, the IGP will Arrandale of variable frequency and overclocking automatically be part of a sort of turbo mode for PGI. As for the Turbo mode, the frequency will be related to the TDP of the machine, but increasing the frequency will (presumably) linked to the load on the graphics (Turbo mode is related to the absence of charge on certain CPU cores). The idea is to propose a low frequency in normal (to reduce consumption) but to push a little when the frequency of heavy use (like a 3D game).

In versions of "desktop" Intel offers several models: the Pentium series G6xxx with an IGP to 533 MHz, Core i3 5xx and 6xx Core i5, with a GPU to 733 MHz and finally the Core i5 6x1, with a GPU faster than 900 MHz. In mobile, we find other models: 6xxM Core i7 and Core i5 5xxM have an IGP ranging from 500 to 766 MHz (TDP 35W), P4500 Celeron has an IGP that goes from 500 to 667 MHz (35 W TDP), the Core i7 6xxLM work between 266 and 566 MHz (25 W) and the Core i7 6xxUM and i5 5xxUM leave of 166 MHz and does not exceed 500 MHz (18 W TDP). In practice, we will have a large disparity in performance 3D processors, but this is not new: the frequencies of PGI are generally modified by integrators without the clear and a GMA 950 can for example operate between 133 MHz and 400 MHz depending on the variant of i945 in which it operates.