Memory performance
Memory subsystem performance doesn't always track with real-world applications, but it's a good place to start our performance benchmarks

Things don't look so hot for either board here, with the Rampage and DX48BT2 filling out the back of the pack in our memory bandwidth and latency tests.

Memory controllers don't always handle four DIMMs gracefully, so we popped an additional two memory modules into each system for another round of tests. In these tests, we had to back off to a 2T command rate for the nForce 780i SLI, Rampage Formula, and DX48BT2—a common adjustment for four-DIMM configurations.

Moving to four DIMMs only makes matters worse for the Rampage and BT2. The Rampage's access latencies are quicker this time around, but neither board manages to match the performance of Gigabyte's X48-based X48T-DQ6, let alone the others.