Mac Pro xeon x5670 2.93 Overclock?

[cpnotebook80]

My current 12 core mac pro is running fine. I was reading about the above xeon processors that i have, whether people have overclocked it for the mac. I know on youtube they show, for the pc market, users overclocking it but not sure how viable the performance improvements are if any.

 

[pastrychef]

As far as I know, there's no way to overclock them. Years ago, there was an app that allowed overclocking of the 3,1s via software, but at some point, it got broken by OS X updates. Other than this, I am unaware of any other overclocking options for any of the Mac Pros.

Source: Mac Pro overclocking utility arrives - PC & Tech Authority

If they can be overclocked, it can provide improved performance but probably at the expense of increased heat and power consumption. Same as with overclocking any other CPU.