It's probably closer to 90% as another person notes, with far greater power efficiency. If that's not enough, feel free to complain to intel or alternatively, the laws of physics

If you expected shit to shrink linearly over time, our transistors would be occupying negative space right now. If you expected clocks to increase linearly, we'd need liquid nitrogen and shit would be full on behaving like waves. That is the reality until we leave silicon land.