Microsoft's Windows OS has been said to run faster on CPUs with up to four processor cores, after which performance levels may deteriorate as more cores are added.

Tremblay's well-rounded approach to computing allows him to encourage developers to write software that can make better use of processors, said Michael Cherry, lead analyst at Directions on Microsoft. That may be handy as organizations use software-based technologies such as virtualization to squeeze more computing power out of fewer processors.

Microsoft doesn't build hardware for servers, but Tremblay also shares good relationships with chip makers that could help bring Microsoft's software in line with processor development, said Nathan Brookwood, principal analyst at Insight64.

"[Microsoft] certainly wants to be able to influence chip makers on what they should be adding to the next generation of chips," Brookwood said.

A number of other Microsoft projects could use Tremblay's expertise, analysts said. Microsoft will likely involve Tremblay in designing multicore chips for future Xbox consoles, Olds said. Microsoft could have plans to add functionality to Xbox consoles, for which specialized chips may be needed, Olds said.