I think the comparison is still quite dangerous: possibly unfair, probably telling little about current hardware. The power efficiency and core count has incre

I think the comparison is still quite dangerous: possibly unfair, probably telling little about current hardware. The power efficiency and core count has increased tremendously on Intel CPUs with Sandy Bridge first and late with Haswell. For the same TDP you easily get 8-12 HSW cores these days. ARM CPUs have likely improved to a similar extent, but given that CPUs are getting "wider" and more sophisticated in terms of caches, power efficiency, etc. it is very hard to extrapolate from assessments made based on hardware that uses >5y old technology.