What is the Phenom II B93?

I would say its more like a Phenom II 925, it has the full 6MB L3 cache. Im curious to know whether they're multiplier unlocked though. Microcenter is selling them for 59.99 right now, and the B73 is for 39.99, and thats like a Phenom II 720 on the AM3 socket. Definitely killer deals as far as im concerned.
http://www.cpu-world.com/CPUs/K10/AMD-Phenom%20II%20X4%20B93%20-%20HDXB93WFK4DGI.html
http://www.cpu-world.com/CPUs/K10/AMD-Phenom%20II%20X3%20B73%20-%20HDXB73WFK3DGI.html
http://www.microcenter.com/single_product_results.phtml?product_id=0389133
http://www.microcenter.com/single_product_results.phtml?product_id=0389134