can you overclock and undervolt at the same time while being stable

[ajlouni]

like the title says 

[loccilucas]

not really, more speed usually requires more power.

[TinoXtreme]

Maybe, but a really small overclock....why?

Like REALLY small.

[CoolBeans]

Depends on the chip

[Enderman]

Depends. 99% of the time no.

[Levent]

you can and i actually run on lower voltages than stock at 4ghz than 3.4ghz stock

[Henleyz]

You can, but it's rare.

[ajlouni]

you can and i actually run on lower voltages than stock at 4ghz than 3.4ghz stock

you are epic 

[harrynowl]

My 4690K can do 4GHz on 0.99v which is 100mv below turbo

[Briggsy]

I can undervolt my cpu to 0volts if I downclock to 0Mhz.

 

fun facts aside, it is doable if the chip is good. I've tried it in a mini-itx rig to see if I could bring heat output down.

[cooperred]

If you have a good chip you can. I'm running a 4670k at 4.2Ghz at 1.07v and stock clocks were at ~1.15v

[Overclocking master]

I was able to set my AMD Ryzen 5 2400g with stock wraith cooler at @3.85 , 3.6500 v and achieve some good 63 degrees max. No crashing or any kind of problem, just runs better.

[BruceWayneofLosSanto]

Running my 2600 at a 50-100mhz allcore overclock atm, though single core boost is 150mhz lower.

Average package power is almost 10w lower.

[PianoPlayer88Key]

My 4790K and 6700K can both have their power consumption lowered to about 65-70W at stock frequencies by undervolting.  I haven't tested much yet with frequencies between that and the highest semi-stable overclock I've achieved on them.

 

4790K (under 212 Evo on Z97 Extreme6) has done 4.7 at 1.25V and 4.8 at 1.35V.  I think I had 4.0 or 4.2 at either 1.0-1.05V or -150-200mV offset or so, I forget now.)

 

6700K (in Clevo P750DM-G laptop) did a little better with undervolting at stock, but I could only reasonably get up to 4.6 GHz with OC.  I did get a Cinebench run or two in at 4.7, but there was no difference in the scores.  Also the system was already hitting 100°C (although at the end of the run, cause I let the system idle for a couple hours beforehand with the fans at 100%); and 5mV lower would have made it BSOD mid-run.)

 

Hey I wonder who else has cut it that close on an overclock, especially under water (or even LN2 or LHe)? (Where <5 mV makes the difference between TJMax (100°C in my case) vs a BSOD within several seconds of starting a load, after running the fans at 100% for several seconds in a semi-cool environment.)

I want to try OC'ing my 6700K laptop again sometime, when the house temp is < 60°F this winter (we currently have no heat), and this time use our 18" high-velocity fan for cooling assistance, and do it next to the freezer in the laundry room (probably the coldest room in the house this time of year) in the very early morning.  (Was just thinking... If I was at a place with a walk-in freezer, I wonder how far the laptop or my desktop could be pushed...)

[Tan3l6]

In ancient times of AMD Barton's I had an Athlon XP 2500+ (1833Mhz) that was able to reach 2400Mhz with significant undervolt.

Depends of the "silicon lottery" but OC on more modern CPU-s is more resticted.

[Mister Woof]

Hey guys, it's Christmas, not Easter.