Fallout New Vegas, 3 PS3 Lag

Fallout New Vegas, Fallout 3 can lag on PS3. Alot of the time both video-games work fine and then for some reason the video-game has a-hole moments where the gameplay become unplayable mess. This happen number of times for example in Fallout 3 Operation: Anchorage, Fallout New Vegas the quest called: Flags of Our Foul-Ups. This huge shame because love both video-games,  there DLC content. I did found a form post statement the following: The Xbox 360 has a unified memory pool: 512 megs of RAM usable as system memory or graphics memory. The PS3 has a divided memory pool: 256 megs for system, 256 for graphics. It’s the same total amount of memory but not as flexible for a developer to make use of.
Note: This was post previous patches back got much better but just like Saint Row 4. There are still problems to this today both video-games on all versions. For example the infamous Freeze gameplay glitch, other game breaking glitches. I have comment I want Bethesda Studio’s, Obsidian Entertainment but sadly have abandoned any sense fixing the problems with both video-games.