Hi i’m a complete newcomer to this so I wanted to find out more about my options. I’ve got 3 machines:

dual Xeon E5-2650 64gb ram nvidia quadro 4000 2gb
i7 4770 24gb ram radeon R9 270x
i7 6700HQ 16gb ram Nvidia geforce GTX 960m

I was hoping the dual xeon will cpu mine better than the R9 270x doing gpu mining? Is it likely to cost more in electricity than it will earn though?