I'm currently running BI on a dedicated refurb Optiplex with 2x4 GB of PC3-12800 memory (SK Hynix brand). I came into possession of 2x4 GB of PC3-10666 memory (G.Skill brand). Would BI performance increase if I ran 16GB at 10,666 vs 8GB at 12,800? I don't have performance issues on the machine...