The PS3's CPU is backed by Nvidia's graphics chip, dubbed in this application the RSX, for "reality simulator". RSX connects directly to the CPU, with which it shares access to the PS3's 512MB of system RAM. The memory is split into two banks: 256MB of XDR clocked at 3.2GHz for the CPU's usage and 256MB of 700MHz GDDR 3 SDRAM for the RSX



The PS3's CPU is backed by Nvidia's graphics chip, dubbed in this application the RSX, for "reality simulator". RSX connects directly to the CPU, with which it shares access to the PS3's 512MB of system RAM. The memory is split into two banks: 256MB of XDR clocked at 3.2GHz for the CPU's usage and 256MB of 700MHz GDDR 3 SDRAM for the RSX.

RSX was said to be twice as powerful as two Nvidia GeForce 6800 Ultra chips, a claim also made for Nvidia' next-generation GPU, the 'G70'. That suggests that G70 and RSX are essentially the same beast. Either way, RSX will support HDTV-resolution graphics up to 1080p. The CPU will handle the audio processing, in Dolby 5.1 with DTS.