Intel's top Pentium chip, introduced in late ... while dual-core Pentium models such as Pentium D and Pentium Processor Extreme Editions omit the "4" designation. See Pentium.
The most recent Atom used in laptops is from 2016 and it was hardly fast back then. Up until recently, there were separate brands for Celeron and Pentium processors. Intel has now bundled both of them ...