I ended on this sort of by accident, I wasn't intending to overclock, just needed to test something on my PC...
But while testing, I ended getting the "overclock bug", and saw myself trying to figure how to improve my GPU score on Userbenchmark.com until I was the top1% in my GPU
http://www.userbenchmark.com/UserRun/1187006 <<< there.
So, I wanted to get started here, but found everything bewildering, specially because many information assumes you already know what it is, for example I saw that "Haswell Tweaking challenge", and I was, ok, maybe I can join that... But then there is no explanation, it is only written it is a tweaking challenge, but for Haswell...
WTf is a tweaking challenge?
Also when I went to see benchmarking software here, seemly most of them are paid?
And what is validation?
Do I need a giant monitor to actually submit scores? Example screenshot-based submissions I saw have lots of windows across a huge desktop, but right now my machine is on my testbench, and doesn't have space for a big screen, I am using a backup CRT screen 1024x768...