I currently use a Pentium D PC as my main system but would prefer to use my Powermac G4 with OS X but it is slow on many things especially flash, java, and browsing the web (my internet is 8Mbps). I am unsure as to the performance gain of upgrading the video card from the stock GeForce2 MX to a Radeon 9800 Pro 128MB video card on this old Mac. Here are the current specs of my PowerMac: CPU: Dual 533Mhz G4 ("digital audio") RAM: 1.25GB HDD: SATA 320GB Seagate USB 2.0 Video: (AGP) GeForce MX 32MB Does anyone know how much of a performance increase I will get if I upgrade the video card while using Tiger? Also if I upgrade to Leopard later will there also be yet another performance increase? If so then in what areas? I know on some systems upgrading the video can speed up many other things in the system. How will UT2004 run? =) Thanks for your input.