Getting pretty clear already in the video that there is more than one effect. What is mentioned not clear enough&#x2F;missing is the more difficult usage of the newer processors and their additional cores.<p>You can see it in games. Until recently it was equally possible to play on an overclocked Pentium G3258 as on an i5-4690, a way more powerful quadcore processor, because most games just did not use the additional threads the i5 provided. That is changing now, so far that even the Hyperthreading of an i7 gets very useful in games.<p>If that was true in games, that was probably also true for other software. Meaning that the new processors where not that more powerful for all those software not being able to use the multi-threading capabilities.