As a percentage sold, what would your guess be? Are these K models? Laptops as a rule have cooling issues as it is so that would only exacerbate the issue. But just from what I've seen on the desktop side, only users using the Auto OC and/or Auto Voltage with manual ratios have seen any degradation. Nobody who set their own voltage in BIOS has any trouble, and nobody with a non-K or a K that is at stock settings, seems to have any trouble. At least, none have reported it and showed their cinebench scores before and after. Regardless, Intel makes products in the US and AMD sold out to Taiwan, so I'll stay Intel.