SEP 12.1.2 Security Virtual Appliance (vShield Shared Insight Cache)

Hi,

Would anyone be able to shed any light on the difference between a standard network based Shared Insight Case setup and the new Security Virtual Appliance vShield based Shared Insight Cache?

I've not had a chance to evaluate is as part of the beta test so was wondering if it will provide any performance improvements over a normal standard cache.

Thanks