MaxxMem2 PreView is a handy, free program to rate memory performance. It can be downloaded over here.
Another bandwidth test shows the 2133MHz Patriot memory outperforming G.Skill's faster TridentX kit. It would seem that there is an underlying configuration setting limiting the G.Skill memory's performance.
Latency again shows a positive result for the G.Skill memory; Patriot's 2133MHz 11-11-11-30 kit is outperformed by the same 12% as it was in Sandra's latency test.