Built 2 systems for friends of mine and what to know how these cards overclock and what sort of increase in 3dmark people are getting.
I've got a Gainward FX5600 256MB card to OC and a Connect3D Radeon9500Pro both using the latest drivers.
Currently I'm using Coolbits+ to OC the FX card but don't know what to use to OC the Radeon card.