Yes, a CPU can experience a decline in performance with age or heavy use.
Yes, a CPU can experience a decline in performance with age or heavy use.
The CPU's speed remains consistent, but the software plays a role. Requirements for software are growing slightly each year. Your CPU might have been the quickest when launched, yet after a few years it could slow because of the software. The outdated architecture and instructions of older CPUs may not match modern programs. Running the CPU with software from its peak time would produce similar results. Cooling also affects how fast the CPU operates.
You can verify background processes, launch applications, and inspect the cooler and thermal paste.
Performance stays consistent The processor isn't designed to lose speed over time so you might see higher power requirements at certain frequencies but it's usually invisible to the average user Heat can affect CPUs, but as long as they stay below 95°C everything should be okay Voltage changes can impact performance and in extreme cases may damage CPUs when too high, though this seems like a rough estimate If you stick to recommended voltage levels or manufacturer guidelines you should be safe
Over time at high speed, your 2600k slowed down noticeably. However, with an optimized OC running at a reduced voltage, the chance of further degradation is much smaller.