Yes, tools are the main difference.

for a few years, everything was ultratorque, but campy overpriced themselves. For a while, centaur had carbon cranks, carbon shifters, carbon rd plates, and skeleton brakes. I think it was better than dura ace in every way and was all anyone really needed. It has since been downgraded and the price reduced.

I don't think Athena UT was ever offerd in black alloy but check out the carbon one above.