The initial launch market will include the U.S., Australia, Austria, Brazil, Canada, France, Germany, Ireland, Italy, Mexico, New Zealand, Spain and the UK. Other markets are scheduled to follow in 2014.
Pre-ordered consoles have already sold out, Microsoft said, but a limited number of additional Xbox One Day One consoles will be available for pre-order soon. Development teams recently increased CPU from 1.6GHZ to 1.75GHZ, roughly a 10 percent increase in CPU performance.
Microsoft previously released the Xbox 360 on Nov. 22 2005.
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