My GIGABYTE GA-890GPA-UD3H BIOS allows me to deactivate cores on my Phenom 955. I was wondering if anyone could give me details on advantages and disadvantages in deactivating cores to make my 955 a tri or even duel core. This is purely about the advantages and disadvantages not if you personally think i should or shouldn't do it.
I agree with both posters above, underclocking/undervolting is a better option. It would be significant in terms of power consumption if you undervolt and downcore. But if you do that, the performance will be significantly compromised.