Thanks to the Broadwell-U silicon inside, Intel's new NUC promises better performance and power efficiency than the previous generation. There are other improvements under the hood, too, including the addition of an M.2 storage slot and a built-in Wi-Fi controller.
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