The guys from inpai tested Intel IGP with very old drivers and that's why they had so much problems. Actually, HD 4200 (500MHz) is a bit behind Intel IGP @ 733MHz but overclocked to 900-1000MHz (very easy on air with all voltages default) it is ~10-15% over Intel IGP @ 900MHz.
HD 3300 (790GX) and NVIDIA 9X00 are much better because of the dedicated VRAM. You cannot compare them with Intel IGP or HD 4200, because they're in anoither performance class

Bookmarks