The third-gen Intel processors were the last ones that came in M (mobile) rather than U (ultra low power?) versions, resulting in performance that is still comp

The third-gen Intel processors were the last ones that came in M (mobile) rather than U (ultra low power?) versions, resulting in performance that is still competitive [1] with the sort of 8th-gen U processors that are found in similar laptops, at the expense of battery endurance. (The U-only 4th gen was actually a big step back in performance [2], resulting in those laptops being a bit of a joke as an upgrade path.) More importantly, they are the most recent laptops that you can fit with non-chiclet keyboards. [1] https://cpu.userbenchmark.com/Compare/Intel-Core-i7-8550U-vs-Intel-Core-i7-3520M/m320742vsm50 https://cpu.userbenchmark.com/Compare/Intel-Core-i7-8550U-vs... [2] https://cpu.userbenchmark.com/Compare/Intel-Core-i7-4550U-vs-Intel-Core-i7-3520M/m6199vsm50 https://cpu.userbenchmark.com/Compare/Intel-Core-i7-4550U-vs...