Which of these integrated gpus will give more performance Intel hd 520 or a intel hd 4000? Im looking into 2 laptops. An Acer S7 with wqhd or a toshiba satelite 12.5 with true 4k. Only issue I have is i've never heard of the intel hd 520 and dont know if its up to the same level as the 4000. The toshiba has the 520. Both are i7s. Both versions im looking into have ddr3 8gb of ram and both have 256gb ssds.