Originally posted by HPMAN:
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I think you're wrong, 2D games can afford main RAM -> VRAM transfers during gameplay.
Look at the Saturn. RAM cart allowed better 2D games, right ? Was it VRAM ? No.
End of demonstation.
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Your idea sounds good in theory, but in practice it's not so cool. Modern 3D games are very demanding, particularly those with a variety of textures and/or high-res textures. This includes racing games and first/third person action/adventure games in particular.
VRAM is used to display textures, right? Having a measly 4MB of VRAM DOES matter then, since less textures (and lower resolution ones) can be handled vs. having more VRAM (such as the 8MB in the DC) at any given time.
Anyone who tries to tell you it doesn't matter is full of it, plain and simple. And unfortunately, this has been proven in practice by many PS2 games which exhibit either characteristic low-res textures (Legacy of Kain games), stuttering frame rates (like Sky Gunner, LOL), heavy aliasing problems (almost all of them), lack of detail, or thick stupid fog.
A few games seem to break out of this situation, but the majority do not. The reality is that the PS2 should have been much better based on when it came out, but it wasn't. Maybe Sony will get it right next time (PS3) but from what I've heard about their ridiculous networking goals, I seriously doubt it . . . <img src="graemlins/ohno.gif" border="0" alt="[Oh No]" />
Oh and btw Saturn games aren't the greatest example, that system was very well designed from the beginning for 2D games and managed to handle most of them quite well, plus the games ported over were not nearly as demanding as they are these days.