Question: Heat vs Voltage In Relation To Overclocking

Daniel Johnson

Honorable
Apr 22, 2013
246
0
10,690
I know that heat and voltage are pretty much the only factors that come into play when overclocking. The lifespan of the unit(s) being overclocked is reduced by excess heat and excess voltage, obviously.

But which is worse?? And how much worse?
Theoretically assuming that no heat were generated by the unit(s) being overclocked, would voltage decrease lifespan very much still, or is heat the more major issue at hand?

I know it's not this simple, but I'm not looking for a super scientific answer, just experienced estimates.

Say we had a 10 year lifespan CPU and it's overclocked to some random clock speed. Would the heat generated reduce lifespan by a high amount and the voltage reduce lifespan by a low amount, or would the voltage reduce lifespan by a high amount and the heat generated reduce lifespan by a low amount, or would the heat generated and the voltage both decrease the lifespan fairly equally?

Thanks to everyone, any help is appreciated.
Links to extra info about this topic is appreciated as well.
 
Solution
Hi Daniel, Welcome to Toms Hardware! :)

Voltage is the supreme killer too much voltage, can kill, or permanently damage, or cripple, the CPU, Instantly!

That is why it is so important regarding overclocking, to know what you are doing before you do it!

Too much heat is a longevity killer, but the CPU has built in protection to throttle itself down to avoid damage from the heat.

The CPU throttling is most evident in performance fall off in either games, or apps, or benchmarks, the hotter it gets the more it throttles back to protect itself, and the worse the end performance is.

Longevity is extended by keeping the overclocked CPU as cool as you possibly can, and the better the cooling, the further you can safely...
Hi Daniel, Welcome to Toms Hardware! :)

Voltage is the supreme killer too much voltage, can kill, or permanently damage, or cripple, the CPU, Instantly!

That is why it is so important regarding overclocking, to know what you are doing before you do it!

Too much heat is a longevity killer, but the CPU has built in protection to throttle itself down to avoid damage from the heat.

The CPU throttling is most evident in performance fall off in either games, or apps, or benchmarks, the hotter it gets the more it throttles back to protect itself, and the worse the end performance is.

Longevity is extended by keeping the overclocked CPU as cool as you possibly can, and the better the cooling, the further you can safely overclock.

But no one can tell you how long that lifetime is of an overclocked vs stock clocked CPU, as no one to my knowledge has invested the time into that type of study.

Hope that helps your understanding!
 
Solution