This is going to be a club swung.

[shams]

NJ5 said:

I've done a little research:

- 360's OS takes up 32 MB of memory (6.25% of the memory). That leaves 480 MB for developers to split as they like between graphical and regular RAM. Meaning that if you split it equally, you have 240 MB for each use.

- PS3's OS (in the latest firmware update) takes up 48 MB of main memory (18.75%) and 24 MB of graphical memory (9.375%). That leaves 208 MB of RAM and 232 MB of graphical memory for developers.

Sources:

http://www.innerbits.com/blog/2007/08/21/ps3-180-sdk/

http://www.innerbits.com/blog/2007/05/09/ps3-memory-footprint/

 

Thanks for that, I had no idea about the actual breakdown of memory used between VRAM + main memory.

I also read that the PS3 will use a lot more system RAM when the game uses extra OS components - such as on-screen keyboard, voice chat, etc...?

So it could be higher for this game. Where as the 360 is fixed at 32MB for all games, all time.

...

Have to say, I do like the (idea of the) 360 architecture. Have a game with heaps of textures - just spend 350MB on textures. On the PS3, you'll need to store some in main memory and write a texture manager (copying them to VRAM as required) - or just use lower resolution textures. It is of course a trade-off with lower performance.