Need a few more details.
What specific CPU do you have?
What is the make and model of the power supply?
What monitor resolution do you use?
What games settings?
Since that is a micro-ATX mobo - how much room in the case for video card? Is the card length limited to the length of the mobo?
If you need help in identifying system issues for an upgrade, or just to learn more about video card selection, I suggest visiting this site:
http://www.upgradevideocards.com/criteria.html
In particular it has help on getting PSU information.
You will most likely be limited by power supply, card length, and CPU from upgrading to a card that will play all current games at higher settings without problems, let alone upcoming games.