With all due respect, (at least) MY i7-7700 has L1, L2, AND L3 caches on-board the processor itself. Perhaps you make other errors as well,? For MOST ham software, even an i-series processor isn't absolutely necessary. While even a Pentium level may be more than adequate, processor longevity isn't usually the limiting factor; motherboard 'longevity" is usually the culprit. (I have yet to se a processor fail before a motherboard gives out, and have often (re) used a processor in a replacement motherboard . While yes, SOME motherboards (such as in commercial products) can be "upgraded" with a faster or better processor, that will certainly void any warrantee that may be applicable, and will almost certainly require an update of chipset and other drivers. The question then, is the time and effort worth it? Will the motherboard actually be stable with a faster processor? All of that has to be taken into consideration, not just "pop in a faster/better" processor.