When I built my first gaming PC, I made the same a**umption almost everyone does. If a processor was advertised as a 125W part, surely that meant it would draw somewhere around that much power under load, right? Right? It seems like the most logical way to choose a CPU cooler, especially when every spec sheet puts that TDP figure front and center. Then, I opened HWiNFO during a benchmark, and watched the numbers climb far beyond what I’d been promised on paper.