CLUB3D 9800GT Green Edition. Maximum resolution: 2560 x 1600 pixels, Processor clock speed: 550 MHz, Graphics adapter RAMDAC: 400 MHz. Graphic adapter memory: 512 MB, Graphics adapter memory type: GDDR3, Memory bus: 256 bit. Interface type: PCI Express 2.0. Minimum system requirements: CD-ROM, Minimum RAM: 1024 MB, Minimum system power supply: 450 W. Compatible operating systems: Microsoft Windows XP 32/64-Bit, MCE Microsoft Windows Vista 32/64-Bit