Utilizing Intel's I340 server NIC on one end, and a Realtek on the other, a transfer from SSD to SSD (Corsair F160 to Corsair F160) proved to be about 111MB/s for a solid file, and 56.75MB/s for a folder, which consisted of 6,353 files of varying sizes. At around 111MB/s, we found our network to be pretty-well maxed-out, even with the Intel server card involved (and for what it's worth, we found pretty much the same in Linux, except it was 1MB/s slower on average).
You do software updates to get the most from favourite programs right? Updating a motherboard BIOS can in a timely manner is also critical. The guide to Flashing a Motherboard BIOS spells out the often complicated steps in plain english. PCSTATS Tips