Microsoft on Sunday cut the price of its Surface Pro tablet by $100, or between 10% and 11%, dropping the 64GB model to $799 and the 128GB to $899.

The cuts came three weeks after much more dramatic discounts to Microsoft's Surface RT, which was reduced by up to 30% to prices starting at $349.

Microsoft said that the price cuts would be valid in the U.S. and Canada until August 30, or while supplies last. Discounts were also offered to customers in China, Hong Kong and Taiwan.

U.S. electronics retailer Best Buy -- a key Microsoft partner -- also was selling the Surface Pro tablets at the lower prices Sunday, as was Staples.

The Surface Pro tablets rely on Windows 8 Pro and Intel processors, rather than the stripped-down Windows RT and lower-powered ARM processors of the Surface RT devices. Surface Pro tablets can run traditional Windows software like the full-featured Office 2013 productivity suite.

While the price cuts were reminiscent of the more aggressive Surface RT discounts, their much smaller size could simply be part of Microsoft's back-to-school marketing: August is the biggest month for that selling season, which is second only to the end-of-the-year holidays for retailers pushing consumer electronics, personal computers and tablets.