The Sisoft Sandra XII SP1 benchmark utility just came out a couple months ago and we have started to include it in out benchmarking. With Sandra XII SP1 you can now easily compare the performance of the tested device with its speed and its (published) power (TDP)! Sandra XII SP1 also has SSE4 (Intel) and SSE4A (AMD) benchmark code-paths, which is great for those of you testing next-generation AMD & Intel chips.
Results: With all of the test systems set to run at 800MHz with 4-4-4-12 2T timings, Sandra XII SP1 showed that the 780G motherboards had slightly less bandwidth over the 690G board that they were tested against. The bandwidth difference between the Gigabyte and ECS 780G motherboard was less than 1%.