Overclock or just let turbo boost

[trogdor796]

I ran the tests on my desktop pc with my 2500k.

With Turbo Boost enabled, and the multiplier set to 42(so running at 4.2Ghz), while running prime 95 the speed never went over 4.2Ghz. While idle/just sitting at the desktop, the cpu sat at 1.6Ghz. Please note that I do have power saving features in the bios such as C1E enabled.

The cpu speed was measured with cpuz.

 

[Cygnus x-1]

That's what I thought would happen. Turbo for your settings is basically working like speed step does on the older intel boards. At least you can run a little cooler while not at high load.

 

[hermz1337]

That is excellent news, thank you for your effort and response trogdor796.

 

[TopABC]

That's what I thought would happen. Turbo for your settings is basically working like speed step does on the older intel boards. At least you can run a little cooler while not at high load.

Ahh so I can oc to 3.7 and have all 4 cores running at 3.7 load and 1.6 idle and not worry about turbo going above 3.7?? .😀 sorry don't mean to hijack (LOL?) But I just had to ask!

 

[TopABC]

Like if no matter how many cores are under load they will be at 3.7?
If I need 1 it'll be at 3.7
And if I need 4 they will all be at 3.7? Thanks if you anwser!

 

[trogdor796]

Like if no matter how many cores are under load they will be at 3.7?
If I need 1 it'll be at 3.7
And if I need 4 they will all be at 3.7? Thanks if you anwser!

If you OC it to 3.7 it should go up to that speed while under load/when needed and no higher. It should also clock itself down to something like 1.6 given you have the correct power savings options turned on in the bios. You can test this yourself and see, but from my testing turbo boost shouldn't take you higher than it's standard boost speed regardless of what multiplier your running at.

 

[hermz1337]

I turned turbo boost off because i overclocked to 4.1 and it still downclockes to 1.6 at no load. Hope this helps. As trogdor says as well, i do have power saving options like C1E enabled in bios. So not sure if that is what is downclocking it or not.

Also, only core 0 will turbo to 3.7, core 1 would be 3.6, core 2 would be 3.5 and core 3 would be 3.4

 

[trogdor796]

I turned turbo boost off because i overclocked to 4.1 and it still downclockes to 1.6 at no load. Hope this helps. As trogdor says as well, i do have power saving options like C1E enabled in bios. So not sure if that is what is downclocking it or not.

Also, only core 0 will turbo to 3.7, core 1 would be 3.6, core 2 would be 3.5 and core 3 would be 3.4

I believe this is how its supposed to work. It will turbo boost higher when less cores are being used. The more cores being used I believe it automatically can't turbo boost as high.

 

[hermz1337]

I believe this is how its supposed to work. It will turbo boost higher when less cores are being used. The more cores being used I believe it automatically can't turbo boost as high.

Your pretty much right, in my previous post i meant when all 4 cores are being used turbo boost will go as high as:

Core 0=3.7 Core 1=3.6 Core 2=3.5 Core 3=3.4

 

[TopABC]

Your pretty much right, in my previous post i meant when all 4 cores are being used turbo boost will go as high as:

Core 0=3.7 Core 1=3.6 Core 2=3.5 Core 3=3.4

I want to have all my cores running at 3.7 and i want to keep turbo boost on cause it limits how many cores are being used and makes them all drop down to 1.6 idle right
from my understanding if you overclock above the max frequency of turbo boost your frequency wont increase(for safety reasons) if you use less cores and they all stay at 1 frequency no matter how many is in use and idle it still drops down to 1.6

 

[hermz1337]

You cannot have all cores at 3.7 with turbo boost and im pretty sure it works the same way without turbo boost anyways, and also, you dont have to have turbo boost on for the cores to downclock when not in use.

 

[TopABC]

ok whatever if i turn turbo off and oc to 3.7 whenever im under load any amount of the cores are going to be a 3.7 thats what i want. if im using 1 core =3.7 if i using 2 =3.7 if i using all 4 = i want them to be at 3.7 is that not possible? forget turbo boost i dont want it to apply more or less frequency on my clock

 

[TopABC]

fk it nvm im stay stock its perfect anyways 2nd best out there

 

[Mousemonkey]

This topic has been closed by Mousemonkey