What do other routers need more power for less performance?
So, if I were to compare a high-end Nighthawk router to eero or eero Pro mesh units, the Nighthawk has more RAM and a faster/better processor. But, the Nighthawk's (or any single router) wireless performance takes a nosedive once you start moving further away from it. As a product trainer, one of my jobs to is to train retail associates on wireless systems. I know first-hand that eero and eero Pro beat all the other single routers and most other mesh systems in terms of stability, range, and latency, all while having a slower processor and/or less RAM.
So my question is why do other routers need beefier specs if it doesn't translate to decent wireless performance? Some people I train seem to think the more "powerful" the router, the better the range and throughput. These are also people who haven't use eero/eero Pro or those other routers, so it ends up being hard to convince them without a definitive answer.
It's because the other firms use cookie-cutter parts and firmware right off the shelf.
eero's operating system in contrast was built from the ground up as a true mesh system instead of some bog standard, off the shelf firmware supplied by another vendor and used as it comes out the box. One of eero's lead devs stated each eero node is basically a mini - Linux computer processing far more complex computations than standard router deals with.
Moral of the story - it's not just about parts but what you do with them ;-)