Francisco Costa said:
Dude is just 1Mhz, it doesn't really matter... But you can always overclock it to those 1020Mhz.
just a question how do i over clock it?
Use EVGA Precision and GPU-Z, they will help a lot. It's not hard to overclock, just be careful not to ruin the card. There are a lot of overclocking guides around the web.