Understanding Turbo Boost

[nheather]

I have a PC with an older CPU. i’m not about to change the CPU, Motherboard, RAM so I’m going to try some overclocking.

My CPU has a core clock speed of 3.5GHz and a boost clock speed of 3.9GHz.

I assume this means that when the CPU load reaches some threshold, like when playing a game, the CPU will boost upto 3.9GHz.

So that would suggest for overclocking purposes I should be looking at a minimum of 3.9GHz otherwise there is no point - is that correct?

I also assume that if I do set the core clock speed to 4.0GHz that I should disable the Turbo Boost because it is unnecessary.

Is my thinking correct?

Cheers,

Nigel

 

[nheather]

It’s an old 4th gen i5, a 4690K, but I don’t really have any issue with it, certainly not enough to splash out on a new mobo, cpu, cooler and RAM, so just trying to tease a little more out of it.

Cheers,

Nigel

 

[nheather]

It isn’t stock, but I am height limited because it is in a HTPC case.

It is an Arctic Freezer 11LP, this one

https://www.overclockers.co.uk/arctic-freezer-11-low-profile-cpu-cooler-hs-050-ar.html

At the moment the PC has an optical drive which limits the cooler headroom. Thinking if taking that out as I don’t use it, but even so I will still be height limited to 120mm which rules out many good coolers.

Cheers,

Nigel