We already know some details about the graphics processors Skylake : the different models will have integrated graphics version of GT4e (72 execution units and 64-128 MB eDRAM) to GT1 with 12 execution units.
To GT1 is now attributed the presence of only six execution units instead of the previous twelve. GT2 variant retains 24 execution units, GT3 attributed to the presence of 48 execution units, and GT4 has 72 execution units. The frequency of graphics processors Skylake can reach 1 GHz.