You quote a number shown in one measurement. There is no one ASIC
Every ASIC behaves differently, based on it's place on the production curve. On top of that, there is cooling.
We can pick a much better corner ASIC, cool it and do a much better measurement.
Your website claims that the ASIC does 7.5 Gh/s using 0.63V and consumes 0.58 J/Gh.
Rockxie claimed that AM's ASIC does 11.52 GH/s using 0.72V and consumes 0.554 J/Gh.
Face the facts, your ASIC just isn't as good as AM's.
At the end, all that is matter is system efficiency at the wall. It average the ASICs, PSU and DC2DC design (if you use one).
I'll stop posting here now.
AM doesn't sell mining systems though, they sell chips. An apples to apples comparison is therefore an ASIC to ASIC comparison and AM's comes out on top.