Hi everybody! I Just installed modified bios - I have Lenovo Y580. As default there is (in modified bios) 1000MHz on base clock and 2500MHz on memory. Currently I have set 1260MHz and 3080MHz. (I used NvidiaInspector) Imo it's very big difference in compared with standard (non GHz) edition. Really it's so good card for overclocking ? Meybe Your clockies are higher ? Let me know in this topic. EDIT GPU-z Shows GPU - 1260MHz and Memory - 1540MHz