Rumors almost never indicate where any kind of IPC uplift is coming from. Assuming that some leaker actually explained precisely where, how many of the people who report on leaks could understand it much of a level beyond something like "cache improvements" or something that doesn't provide too much additional information. Also it seems unlikely that it's a pure 20% from just one source. Maybe there's one area that's responsible for a larger part of it, but it probably picks up a small boost from a lot of small tweaks and improvements. Does any person leaking information ever break it down that much?I thoroughly enjoyed watching Ian's entire 26 minute video, which is rare for me with a video that long. I have been thinking the same thing as Ian regarding the Golden Cove 20% IPC improvement that has been stated (I don't even remember the origin of this) and the Scheduler issues with Big/Little and how they will be handled. Namely, from an architectural level Intel has not told us, even in general terms, how it plans on improving IPC by 20% over Sunny Cove and how the heterogeneous cores will be effectively utilized by Windows?