Undervolting, does it matter?

einzele

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Dec 1, 2014
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Hello guys, as now i dont use my pc as heavily as i was before, im thinking to undervolt it, in hope to reserve its life and overclock it again later in the future when it is getting obsolete. I have a 4790k @ 4.4GHz 1.2v, couldnt get any lower than 1.2v i guess my chip didnt win the lottery. Then i tried to underclock it and i managed to get 4.0 GHz at 1.025v, tested with prime95 small ftt, managed to get from high 70C to high 60C temp, and power draw from 120W to 80W using cpuid monitoring software.
So as the title says, does it matter? Do i get more lifetime out of this chip by doing this? I do plan using this chip for long time after all. Yes i get lower performance, but i doubt i need that extra juice anymore, just doing some mild gaming and watching nowadays, i doubt gaming can take advantage of that 400MHz difference, or do they? I use kraken x61 with 1 fan plugged off because it start making noise, and a gtx 970 if that matters. Cheers.
 
I'd say that its unlikely as you'd probably have upgraded it before you ever experienced problems with it. In fact you could probably keep it OCed and still upgrade it before you experienced any issues with it. I have a Q6600 that is still going strong, it spent most of it's life overclocked beyond 3.0GHz. It's almost 8 years old. I don't use it anymore, but its in my wife's computer.
 
It will save you some power and allow the cpu to run cooler at the cost of some performance. It may allow it to live longer but cpu's when run at stock settings almost always out live the motherboard the are in. Underclocking and undervolting are more useful in laptops(longer battery life and less heat) and SFF PCs IMO. Some games will use the extra 400Mhz. The best way to find out is to benchmark them before and after and see for yourself and then decide what you can live with.