Intel Core i5-6600T vs Intel Core i5-4570T

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than the 6500T within the same 35W limit, making it a slightly better choice for SFF refurbishing, though still outdated overall.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.

An efficient and cool-running chip for its time, but severely outdated by modern dual-core standards.

Best for: If you are considering the Core i5-4570T today, it should only be for upgrading an existing LGA 1150 system where your current chip is failing, or for building a very basic retro or office PC using salvaged parts. It holds no value for new purchases due to its age and lack of modern feature support. If found cheaply, it can serve as a capable home server or HTPC processor, handling media streaming and basic network tasks adequately. However, its dual-core limitation will be a bottleneck for modern web browsing with heavy scripts. Do not spend more than a few dollars on this processor. Anyone building a new system should look toward modern 12th or 13th Gen Intel alternatives, or AMD's Ryzen series, which offer vastly superior efficiency and performance.