Download Msi afterburner and slowly raise the clockhertz and adjust fan speeds as needed. Run furmark or what I use is eugineheaven. I AM NOT RESPOSIBLE/LiABLE for anything you do, I'm just trying to help
Anyway there were lots of tool out there so you can oc your card. Personally I prefer to use MSI After Burner as the software are pretty much guarantee to work with any gpu. Push the power target to the max. Then add more frequency to gpu core in 25-50mhz increment. Every time you increase the core clock run stability test. You can use furmark and unigine heaven for that purpose. Personally I just use unigine heaven but if you really want to be sure you can use both. Unigine heaven is much more realistic representative of gaming situation than furmark. As for the memory you can leave it as it is if you want to.
Download Msi afterburner and slowly raise the clockhertz and adjust fan speeds as needed. Run furmark or what I use is eugineheaven. I AM NOT RESPOSIBLE/LiABLE for anything you do, I'm just trying to help