I bet if you have a 14 awg, or 12 awg standard IEC cable it will make the same difference. The wiring in the wall is only 14 awg, so going any thicker then that is pointless IMO. I have some 14 awg cables that I got from work. I haven't ABd them, but in theory if your power cord is the same awg as what is in the wall then going bigger shouldn't make a difference.