I've got a 5960X that's been overclocked since that CPU launched. That's just under five years ago since that was a Q3 2014 launch. Its been running at 4.4GHz @ 1.30v since the first week of availability. I've got another one that I used on several reviews that runs at 4.5GHz @ 1.35v. It still works, but hasn't been run 24/7. It was only abused on the test bench.