I've no idea of the authenticity of the statement (and I know that the named leading game is wrong) but as your entry on sys 23 gfx h/ware is empty I thought I'd mention it, and if anyone can confirm or deny the info then at least I've learned something :)
Quoted from Edge magazine issue 37 page 119:
"It's expected that Namco will unveil System 23 at the JAMMA show in mid September. It's based upon Videologic's PowerVR technology and Tekken 3 will be the game to showcase the hardware.Just how many PowerVR chips are running in parallel isn't known but the system's ease of expansion is a feature that could allow the placement of multiple chips in parallel to deliver in excess of 2,000,000 polygons per second."