We had a 10,1 Intel Core 2 Duo 3.06Ghz, 14GB RAM. We upgraded to a 12,2 i5 3.1Ghz, 16GB RAM....not seeing quite the bump we expected. Was the upgrade a mistake? We were both thinking Quad Core would be twice as fast as Core 2 Duo. Used for Photoshop, Maya and Zbrush.