The title &amp; the article are worded so badly that I would go as far as to say it&#x27;s just flat out wrong.<p>This isn&#x27;t about CPUs supporting anything. This article is based on Microsoft&#x27;s policy of adding support for fancy new CPU features to their kernel. Microsoft has decided to build the new kernel features into Windows 10 and either delay or even skip adding them to their older kernels.<p>The new CPUs will still be usable with older Windows versions, and with other OSes.<p>For Skylake, with the Speed Shift tech, the performance difference is about 2% according to tests made by AnandTech. [1]<p>[1] <a href="http:&#x2F;&#x2F;www.anandtech.com&#x2F;show&#x2F;9751&#x2F;examining-intel-skylake-speed-shift-more-responsive-processors" rel="nofollow">http:&#x2F;&#x2F;www.anandtech.com&#x2F;show&#x2F;9751&#x2F;examining-intel-skylake-s...</a>