I've been running my 2600K at 4.0GHz @ 1.200v for the past 7 years and don't feel the need to upgrade. Temp wise it peaks at 47-50c on air. As far as I can tell, at 4Ghz it's roughly on par with a stock R7 1700X for single threaded performance. Since I don't do video editing / benchmarking and my applications (games & photo retouching) are either GPU bound, single threaded or poorly optimized for high parallelism, I can't justify wasting 600-700euro for a new CPU/MoBo/RAM/Cooler kit. Plus, I can still max out most games at 1080p 60Hz using my trusty old R9 290. Who knows, maybe it will last the whole decade.