Did not have a chance to do a full performance test on this machine (VX4618G-Ei7260W).
Memory, however, works quite well for a $700 PC, benchmarked with Aida64:
Read: 16.4 GB/s Write: 18.6 GB/s Copy: 18.3 GB/s Latency: 53.1ns CPU Queen: 43.7K (okay, I was just curious).
Upgrading stock memory to Kingston Hyper-X 1600MHz CL9 did not improve speeds. It appears the motherboard does not support XMP and continues to run in casual mode.