This sounds an awful lot like Virtual channel memory (VCM), it had a high speed chip on it.

I really wanted to get some and put it in my Dual P3 (VIA Apollo 133a chipset), but the only parts were just 128MB sticks. 
My deep search showed that it was being sold in Japan as 256MB parts - that Japan had taken to it more than the "safe" western crowd.
I thought then that it had promise, and again it may be a winner.

The 700S and 750S southbridges integrate the SuperIO chip on die.

Hi Charlie,

there is already a tweaked Shanghai (Montreal) on the server roadmap for next year, main difference to Shanghai is a bigger L2 cache (1 MB/core).

Fuad had a news today, that this is Rev. D and brings high-k to AMD's 45nm process.
http://www.fudzilla.com/index.php?option=com_content&task=view&id=7197&Itemid=1


Can you confirm this ?

thanks

Alex