Manufacturing newer CPUs makes sense only if the device it's meant to replace is like 25 years old:
"The emissions from production of computing devices far exceed the emissions from operating them" [...] "the European Environmental Bureau [7] makes the scale of the problem very clear. For laptops and similar computers, manufacturing, distribution and disposal account for 52% of their Global Warming Potential [...]. For mobile phones, this is 72%. The report calculates that the lifetime of these devices should be at least 25 years" https://wimvanderbauwhede.codeberg.page/articles/frugal-comp...
