Intel Core i5-6500T vs Intel Core i5-6600T

A capable low-power option in 2015, the i5-6500T sacrifices clock speeds for efficiency, making it strictly a budget/SFF salvage part today.

Best for: If you are buying a refurbished SFF office PC (like an HP EliteDesk or Dell OptiPlex) for basic home server duties, web browsing, or as a thin client, the i5-6500T is perfectly adequate. It runs incredibly cool and quiet, making it great for a living room PC that only handles 1080p streaming. However, you should never buy this processor standalone to build a new PC. Its low clocks and locked multiplier severely limit its potential, and modern low-power alternatives offer significantly better performance-per-watt. If you already own it, max out the RAM and add an NVMe SSD to extract the best possible everyday responsiveness, but do not invest in a dedicated GPU expecting a great gaming experience.

The i5-6600T offers slightly more headroom than the 6500T within the same 35W limit, making it a slightly better choice for SFF refurbishing, though still outdated overall.

Best for: If you are picking up a used 1-liter PC (like a Lenovo ThinkCentre Tiny or HP EliteDesk Mini) for a home server, HTPC, or basic office terminal, the i5-6600T is a great little workhorse. It offers a nice balance between the lower clocks of the 6500T and the higher power draw of the 65W parts. It runs incredibly cool and is virtually silent. However, buying this chip standalone to build a new PC is a terrible idea. Modern budget processors deliver vastly superior performance and efficiency. If you have this CPU, an SSD and 16GB of RAM will make it feel incredibly responsive for daily tasks, but do not expect it to handle modern gaming or heavy creative workloads.