does 64 bit increase the memory cap on the sql server instance?
Also is there a list of AC certified IT professionals?
No. All Express versions are limited to 1 GB on the RAM for cache. The only difference between 5 and 12 is the 4 GBs of database space compaed with 10 GBs.
The best way to tell is to Google SQL Server specifications and you will find tables and charts with all of the versions with what they come with.
