I've just installed vmware esx on a relatively cheap but new machine and I put a VM for pfsense to run my firewall and that's running perfectly so far.
I now want to look at shutting down my old ass HP Proliant G4 server which is a dual xeon 3ghz, 2GB ram , 10,000 RPM scsi drive machine and moving everything it was doing to a new VM on this newer hardware
AMD A8-3870K Black APU Quad Core, 8GB ram, 500GB 7200rpm sata.
I planned on dedicating 3 of the 4 cores to the new VM (ubuntu 12.10 server) and 6GB ram.
Am I likely to see a performance decrease or increase? It's difficult to find reviews or articles for this kind of comparison.