Virtualisation

[TheTiger]

Hi,

If this setting is left on, say for a quad core cpu, would this affect the overclock much or would it be negligible?

Thanks

 

[Reality|Bites]

From my own experience with my E8600, turning it off let me get 4.4Ghz. Previously My max was 4.4Ghz. Although it does allow you to use a little less vcore for your overclock.

At 4.3Ghz with virtulisation on I had to use 1.38v to get it stable, with it off I was able to lower it to 1.34v.

 

[jamief]

If you don't use your system as a virtual host, turn it off. Even then the benefits in my experience are negligible.

 

[TheTiger]

Sorry I should have said I'll be running VMware frequently. Although I'm wondering what performance gains are to be had, as I'll be looking to run my quad at ~3.6GHz +.

 

[jamief]

I think the best thing is simply to run some benchmarks (from within your VM) whilst testing a range of variables such as:

Intel VT on, CPU @ 3.4GHz
or
Intel VT off, CPU @ 3.6Ghz

And see how performance varies within the VM. I've personally not noticed much of a difference with it on, but I guess it depends on what you are doing.