Microsoft's Surface Pro 2 gets stealth silicon upgrade

Tablet gets a quiet upgrade. Unannounced CPU upgrades are unannounced for a reason: newer CPUs tend to offer better performance.

Surface Pro 2: there's new silicon inside after only two months.
Surface Pro 2: there's new silicon inside after only two months. Brooke Crothers

The latest Surface Pro 2s are shipping with a new processor -- only two months after the second-generation device was released.

The upgrade is to a 1.9GHz Core i5 4300 from an Intel 1.6GHz Core i5 4200U processor -- the latter shipped in the Surface Pro 2 that was released in October. The news was first reported by WinBeta.

"Microsoft routinely makes small changes to internal components over the lifetime of a product, based on numerous factors including supply chain partnerships, availability, and value for our customers," Microsoft said to CNET in a statement.

For any customers "experiencing...concerns," Microsoft suggests chatting with tech support here.

The Surface Pro 2 is fairly unique (among tablets) in its use of a laptop-class Intel CPU, as CNET Reviews points out . (One of the reasons for the device's relative thickness.)

Microsoft eschewed both Atom processors and power-efficient Y series Core processors in favor of the faster U series.

The Surface Pro 2's performance as tested back in October by CNET got pretty close to the MacBook Air (June 2013) on certain benchmarks.

It should get even closer now with the new 4300U.

Note: I can also confirm that the Surface Pro 2 is shipping with a new processor. The screen shot below is taken from a recently-shipped Surface Pro 2 that I have been using.

Surface Pro 2's new processor.  It is now shipping in the latest second-generation Microsoft tablets. This screen capture was taken from a recently-shipped model I am now using.
Surface Pro 2's new processor. It is now shipping in the latest second-generation Microsoft tablets. This screen capture was taken from a recently-shipped model I am now using. Brooke Crothers
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