You can get up to DDR3-3000 from what I've seen but performance varies with application. The problem is that throughput isn't the only important metric, latency

You can get up to DDR3-3000 from what I've seen but performance varies with application. The problem is that throughput isn't the only important metric, latency determined by the timing specs of the module are also very important. Higher throughput modules generally have significantly worse latency. For some applications, the throughput is far more important than latency but for many applications latency is just as important if not more important. There are a few benchmarks at different speeds / latencies here: http://www.anandtech.com/show/7495/adata-xpg-v2-review-2400-c11/8 http://www.anandtech.com/show/7495/adata-xpg-v2-review-2400-...