Best utility for your graphics card

Anandtech has a nice post about the best utility software programs for the owner of a recent graphics card (be it an nVidia or and AMD-ATI). They compare:

• ATI Catalyst Control Center
• ATI Tray Tools
• ATITool
• nVIDIA Control Panel & nTune
• RivaTuner
• nHancer
• BIOS Flashing options and programs