Depending on your card, overclocking can be an easy or daunting task. In fact, some cards come overclocked out of the box but more performance can always be squeezed out. These steps generally take quite a bit of effort to perfect, as it takes a combination of core clock, memory clock, undervolting, and even BIOS modding (for AMD cards) to perfect.
How much should I overclock?
This largely depends on the card. First, start with your core clock. Increase it until you have instability (artifacting, system crash, etc) and then back off a few points. Afterwards, do the same with the memory clock.
AMD
BIOS Modding
BIOS modding is a complicated, but necessary procedure in squeezing performance out of your AMD card. After completion, it is common to see 4 – 8MH/s above stock.
- Click here for a complete procedure on BIOS modding.
Windows Utility
- MSI Afterburner: Link
- The ROG skin chosen during install is much more compact and is recommended
Here is a video to watch about overclocking in MSI Afterburner
Nvidia
Windows Utility
- EVGA Precision XOC: Link
Here is a video to watch about overclocking in EVGA Precision XOC