Undervolting and Turbo Boost

[Ndwolfy780]

Does Undervolting limit Turbo Boost capabilities? 

I know it helps with thermal headroom and allows it to boost better and longer. But what Im wondering is will undervolting cause a power limit

It feels like such a dumb question but a simple google seach has just been giving me unrelevant information or just really vague answers that dont really answer my question. 

[ObsidianAura]

No, it improves them.

 

The less voltage the chip is using the less heat the chip creates for the same clock speeds.

 

The boost stays on till it hits a temperature threshold and then throttles back (thermal throttling) so the less heat the chip gives off the longer you can stay at your boost speeds.

 

You're trying to offset the voltage until it becomes unstable and then easing back until it becomes stable again.

[Jurrunio]

If that helped with cooling enough, it should turbo up higher. If it's unstable with high clocks, then it could limit turbo. If you're previously power throttling, then undervolting helps with turbo. If you're already hitting the turbo limit, then it wont help with turbo even though power draw does go down.

 

You can at least start by mentioning the CPU architecture, so it's not as vague.

[Ndwolfy780]

2 minutes ago, ObsidianAura said:

No, it improves them.

 

The less volts the chip is using the less heat the chip creates for the same clock speeds.

 

The boost stays on till it hits a temperature threshold and then throttles back (thermal throttling) so the less heat the chip gives off the longer you can stay at your boost speeds.

 

You're trying to offset the voltage until it becomes unstable and then easing back until it becomes stable again.

I know about thermal throttling, which of couse unervolting helps. I probably should have been more specific, I mean does it limit tutbo boosting from creating a power limit 

[ObsidianAura]

4 minutes ago, Ndwolfy780 said:

I know about thermal throttling, which of couse unervolting helps. I probably should have been more specific, I mean does it limit tutbo boosting from creating a power limit 

The CPU should always try and reach its maximum turbo limit temperature permitting. Undervoting the CPU will no stop the CPU trying to reach its maximum turbo speed, it will just mean that it crashes if the voltage is insufficient. That is what we would call an unstable undervolt. The only way to find the right level is to keep dropping down and stress testing until it falls over, then work your way back to stability 

[Ndwolfy780]

1 minute ago, ObsidianAura said:

The CPU should always try and reach its maximum turbo limit temperature permitting. Undervoting the CPU will no stop the CPU trying to reach its maximum turbo speed, it will just mean that it crashes if the voltage is insufficient. That is what we would call unstable.

Ahhhh okay that answers my question thank you. So it wont limit its turbo speed itll just flat out crash gottcha. Thanks!