Yes, my old emu box was a Broadwell i3 NUC and it ran PS2 and Gamecube fairly well - slight hangup now and then. Just had to keep them to their native resolutions and not do any upscaling. Upgrade to a Coffee Lake i3 this year and its running everything without a hiccup. CPU is the big deal, GPU is fairly irrelevant for emulation, though it does come into play when you start using shaders and stuff like that.