It looks the same as a normal DDR3 Memory module only there is a big Radeon badge on it.
According to AMD's website, three 2GB long DIMMs are being released as part of a new Radeon memory line. Each memory is a 240-pin socket type dual in line memory module designed to hit a different niche.
The 'Entertainment' memory runs at 1333MHz (9-9-9 latency), then there is the 'Ultra Pro Gaming' DIMM working at 1600MHz (11-11-11) and last we have the 'Enterprise' memory which doesn't have finalised specs but will probably run for five years boldly going where no one has gone before before being mothballed for a couple of decades.
The DDR3-1333 module has been spotted in the Land of the Rising Sun and will set you back $20. It is not clear why AMD is making this move. After all the memory market is not doing that well and competition is tough.
We would not have thought that the sorts of people who buy AMD chips are the types who want an "only AMD" machine.