As mentioned, the rear camera module itself hasn't changed, but during our brief hands-on we did feel that it was benefiting from the extra speed of the processor.
Although all of the Google TV launch devices have their differences, at their core they're all running Android on an Intel CE4100 media processor, which is essentially a 1.2GHz Atom core that's been beefed up with some extra graphics hardware capable of capturing and decoding 1080p video.