Corsair Dominators usually come from the highest quaality chips available from chipmakers like Micron. In many instances, Corsair Dominators are derived from the highest binned chips available Not certain about G. Skill, but G. Skill uses high quality chips with their performance RAM. Neither Corsiar or G. Skill are chip makers. These company's use chips from Micron (Crucial), Samsung, Elpedia, etc. The RAM will come with specifications regarding speed (data transfer rate), timings and voltage requirements. There should not be a heat issue if used within the Mfg. specs.