The Sparkle Calibre P980 9800 GT has been overclocked, thus making it better able to handle the ever-rising level performance levels of the competition -- especially one card that has just been released, the similarly-priced ATI HD 4770. As you can see from the chart below, the Sparkle has a healthy, substantial overclock. A few cards reviewed here recently have been advertised as 'overclock' yet only have a slight memory overclock, so this is nice to see Sparkle doing an overclock right.