http://www.examiner.com/article/xbox-one-rumors-point-to-a-higher-clock-speed-but-doubtful-on-increase-ramThere has been a bit of controversy surrounding this topic. In an attempt to clarify further, I decided to contact my source based on the idea that the increase in clock speed may have been a confusion with the better utilization of ESRAM that Digital Foundry reported on earlier this month.
"The bump was supposed to have been planned prior to initial reveal. Any actual changes would have taken place during E3 Week. Effectively, the way the RAM is set out in the machine, Microsoft realized they could be more efficient in its use without sacrificing the amount set aside for OS operation. They immediately reacted.
Physical RAM won't be upped in time for November release as it was too late even during initial reveal, but developers are saying, in terms of efficiency of the RAM and the reported yield problems, Microsoft have made some snappy breakthroughs and gave the impression it was a straight up increase in clock speed; hence the rumor."