Here's two,http://www.eurogamer.net/articles/digitalfoundry-2015-intel-core-i3-6100-review
http://www.techspot.com/review/1087-best-value-desktop-cpu/page4.html
Admittedly for video editing the i3 is a bit behind an fx. That said,he is looking at a 5820k and not an i3.
For things that can actually use all of the cores the fx wins most of the time,anything needing single core performance the i3 wins.
So i admit my post was a bit out of line,it was meant more as a joke than me actually recommending he get an i3.