The screenshot and title describes the issue, it's easier to see when you move around (bright pixels). I think it started to occur when the way textures where handled changed.
AMD Radeon HD 6900 Series, latest drivers.
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23rd duplicate of MC-1794, please use the search function to see if your bug has already been submitted. Currently over 50% of tickets are being closed as duplicate.

I did search, guess I didn't use the correct keywords.
The biggest downside with seatching is the number of hits you get. I think I had 600 or so...