Whoohoo!
The more powerful the machine, the less performance difference that you can see between the distros.
Of course, if you can measure microseconds… 
But with an average monitor the shortest time difference you could see is 1/60 second, that’s not very easy to be perceived by a human eye (except of hardcore gamers, who can notice even 1/140 second).
However there is another thing to consider, if you pay the electricity.
Having a modern powerful rig, it will draw more power from the mains under a higher load than just idling.
So running more demanding OS will cost slghtly more 