The manufacturing fabrication process measured in nanometers (nm)
The manufacturing fabrication process is measured in nanometres (US: nanometer) – millionths of an inch, which measures the width of the wiring. The current smallest manufacturing process is 14nm (2014). The smaller the manufacturing process, the faster and cooler the processor can run and the less energy it uses, thereby extending battery life for mobile computers. The history and anticipated future of the fabrication process is provided in the following Wikipedia article.
Semiconductor device fabrication – https://en.wikipedia.org/wiki/Semiconductor_device_fabrication
If you require high performance from a computer’s processor, forget about the processor specifications, which are meaningless to most people, choose a processor that you can afford and read the reviews that provide comparative benchmark tests that can be found using any of the popular search engines. Note that any dual-core or higher processor will be able to run office applications, use the web, watch videos, etc., but you need the best components you can afford to play the latest PC games do video editing and provide you with some future-proofing so that you won’t need to upgrade the processor and graphics card to play games a few years into the future.