Rechenkraft.net e.V.

Looks like it's bugged only in ubuntu 17.10 and 18.04, other Linux clients get usual amount, but that one... both claim only 600, but granted 1200.

I think you're mistaken. The Atom is the slower one. And I think yoyo might award additional credit for fast return. No, if you are double-checked by normal host you will get the same score around 200, but if you double checked by ubuntu host with ridiculously high integer speed you will get 1200. ...

I think score system for perfect cuboid is bugged for Ubuntu and someone (deliberately or not?) abusing it. How on earth Intel(R) Atom(TM) CPU Z3735F @ 1.33GHz can outperform Intel(R) Xeon(R) CPU X5560 @ 2.80GHz ? If u and your wingman run special version of Ubuntu/BOINC u get 1200 points instead of...