I have to say I was pleasantly surprised at how the Vapor-X Universal CPU Cooler handled the thermal load of the Core i7 2600K and especially how it outperformed what has been my go to heat sink for family builds: the Noctua NH-U12P. Sapphire's Vapor-X Universal CPU cooler performed two degrees Celsius better than the Noctua at both stock and overclocked speeds. The Phantek's cooler shows more cooling is available with a massive air cooling solution that provides an 8 °C improvement over the Vapor-X when the CPU is overclocked. The Vapor-X is not meant to compete at that level yet still delivers acceptable temperatures when overclocked.