http://www.gfe.com.hk/news_22.asp

GALAXY ZEUS 5500 is positioned in between the FX 5200 and the FX 5700, with a 270MHz core clock and 350 MHz RAMDAC clock. The Galaxy Zeus 5500 utilizes 64MB memory on a 128 bit memory interface. It is an obviously killer nVidia card designed to compete with the ATI9600SE.