The best deals on processors (economically optimal on a price/performance basis) are highlighted by the cost-efficiency frontier and listed in the table below. Performance is measured by Passmark CPU benchmark score; prices are collected for the top 500 performing processors available for sale on Amazon. CPUs closer to the frontier offer better value (more bang for the buck) than CPUs further from the frontier. A similar analysis for graphics cards is available here.
Select an area on the graph to zoom in, click on any point to view that processor’s details (note: I receive an affiliate commission for purchases made through links on this page). Data updated every Saturday afternoon PST.