70MB of additional RAM unlocked for PS3 developers | Engadget
How much RAM does the PS3 have? I have read 256MB, but no way in hell could that run GTAV, or any other game, at 30 FPS. Can someone confirm this? - Quora
OFFTEK 256MB Replacement Memory RAM Upgrade for FIC PS3 (PC2700) Laptop Memory at Amazon.com
Memory Card Adaptor Prices Playstation 3 | Compare Loose, CIB & New Prices
PlayStation 3 technical specifications - Wikipedia