According to the information provided by sources familiar with the matter, game developers used high-performance PCs to showcase what the PlayStation 3 game consoles will be able to deliver to gamers. At least some of the game developers masked personal computers inside the showcase stands and put a PS3 case so that attendees would believe that they see the real working game consoles and the real games. However, no attendees could actually touch the consoles, or to play the PlayStation 3 games during the exhibition.
The game developers who did not run their demos on the pre-release Sony PlayStation 3 hardware, used high-performance personal computers, such as those featuring high-speed Nvidia GeForce 7900 graphics cards in SLI mode or even ATI's Radeon X1900 in CrossFire mode. While neither ATI, nor Nvidia would confirm such information, the sources claimed that at least some game developers used PC hardware to demonstrate the PS3 demos.