ojas :
Hey interesting thing reported on Tech Report. Windows 8 has some power-saving optimization, and will affect BCLK overclocks on some platforms.
Link: http://techreport.com/news/25246/potential-timing-flaw-compromises-win8-for-competitive-overclockers
It says nothing about it IMPROVING your overclocking, or even allowing better overclocking. It says nothing about powersaving features either... It says that BCLK overclocks are functioning AND reporting oddly in windows8, and because of this they no longer will accept win8 benching results. Interestingly, AMD cpus have no such issue in windows 8.
Basically it's saying that Windows 8, yet again, falls short for the enthusiast community.