Benefit of Xeon 1230v3 Turbo clock for all 4 cores

[turbopixel]

I have an Intel Xeon 1230v3 processor with 3.30 GHz for 4 cores (plus hyper threading). It cannot be overclocked. My mainboard is ASRock Z97 Extreme6. I can set the turbo clock from single core 3.70 GHz to 3.70 GHz for all 4 cores.

Specs
> http://ark.intel.com/products/75054/Intel-Xeon-Processor-E3-1230-v3-8M-Cache-3_30-GHz

What is the benefit of doing this? In what situations and applications would it make operate faster? I searched the web, but couldn't find much information or benchmarking for that.

 

[rolli59]

It will help in anything that is multithreaded like encoding and such.

 

[turbopixel]

But I don't understand this. The clock speed of 3.3 GHz jumps to 3.7 GHz for single core in turbo mode. The turbo mode is used for single threaded applications and if other cores are not used. How can this help for multithreaded applications? Then the turbo mode will not be used. Am I not right in thinking of that I need 4 single threaded applications at same time for use with 4 times turbo mode?

Edit: I mean multithreaded applications will use 4*3.3 Ghz at max and can benefit from hyper threading too. How will the turbo mode will help there?

 

[ShadyHamster]

Usually with turbo mode the more cores being utilized the less the cpu will turbo to.
1 core will turbo up to 3.7ghz while loading up all 4 core will usually limit the cpu clock to 3.3ghz, there is some times different steps for 2 and 3 cores too, depending on your cpu and platform.
Enabling that setting in the bios will allow all 4 cores to turbo up to 3.7ghz while under load.

 

[turbopixel]

I understand that, but there is something I don't understand. When does it go to turbo mode? What is the difference between base clock and turbo clock then? Is this basically same thing like overclocking the base clock to 3.70 GHz? Say, an overclocked i7 is the same as using the turbo clock on that? The algorithm of using the turbo clock is different than base clock, as I know of. Thats why I am confused.

 

[rolli59]

Basically it is overclocking all cores to max multiplier which is the turbo setting.

 

[con635]

I understand that, but there is something I don't understand. When does it go to turbo mode? What is the difference between base clock and turbo clock then? Is this basically same thing like overclocking the base clock to 3.70 GHz? Say, an overclocked i7 is the same as using the turbo clock on that? The algorithm of using the turbo clock is different than base clock, as I know of. Thats why I am confused.

Its decided on the load of the cores, run p95 on one core and check cpuz for frequency it will help you understand, 1 core loaded clock speed is 3.7ghz, 2 cores working clock speed is 3.6ghz, 3 cores working speed is 3.5 etc If your motherboard has 'multi core enhancement' you can have the 3.7ghz even when all cores are loaded.

 

[turbopixel]

From my understanding the turbo does not get activated if any program is using more than one core/thread. Isn't this true?

 

[con635]

From my understanding the turbo does not get activated if any program is using more than one core/thread. Isn't this true?

No, it will turbo but not as high a frequency