For the best performance and future-proofing, choose the latest generation of Intel Core i7 available. The newer generations offer improved performance, efficiency, and features compared to older models. However, newer generation CPUs come at a higher cost. Additionally, while the latest generations are powerful, this doesn't mean that CPUs from one or two generations ago have become obsolete. For the best value for money, consider opting for the Intel Core i7 12th generation for laptops and the i7 11th generation for desktops. If you want the absolute best setup, then it’s advisable to go with the latest generation available.