As exciting as the notion of a Mini-ITX X99 motherboard was, we expected it to deliver limited features, memory performance and ultimately system performance. Furthermore, placing a 140w Core i7-5960X processor on a tiny motherboard in an equally tiny case seemed like a recipe for disaster.
We proceeded with our Mini-ITX build nonetheless and we ended up with something truly amazing.
As expected, memory bandwidth performance fell, by almost 40% in fact. That seems like a huge blow but we've found that this doesn't necessarily impact performance and the Core i7-5960X delivered virtually the same results using dual-channel memory as it did quad-channel.
Therefore, performance-wise the X99E-ITX/ac is as good as any other X99 motherboard on the market.