You mean the speed at which the data can be read from the hard drive and/or the Blu-Ray disc?The bandwidth on the Cell's Element Interconnect Bus and the memory controller is pretty huge so a Cell-based system doesn't necessarily need as much dedicated VRAM. But again, that's only if the code is architected uniquely for the Cell system.
Conventional processor would not exactly have done the same job... they would have needed a stronger GPU to go along with that conventional processor just to achieve same results. In hindsight it would have made more business sense to do that, of course, just like Microsoft did.
^^ It's good to see that someone else understands the meat of my argument.
If the programmers are not taking the time to learn the system and are only loading designing the games as if they were designing for a PC, then they will not take full advantage of the system. The system will not be "maxed out".
The first game I had heard of actually using the full capabilities of the PS3 was Uncharted 2, and when you play Uncharted 2, it shows what good programming is capable of when they code the game around a system's strengths.
The interview can be found here:
http://www.joystiq.com/2009/02/04/joystiq-interview-talking-uncharted-2-with-naughty-dogs-evan-w/
In this case, the developers wrote their engine from the ground up.
Relevant quotes from the interview:
It was a huge learning curve for us. We rewrote our engine from scratch. We started with a line of code with Uncharted basically, so we could build an engine and a tools platform custom-built for what we thought the system was capable of handling.
Another good interview with Naughty Dog can be found here:
http://arstechnica.com/gaming/news/2009/08/uncharted-2-makes-ps3-shine-couldnt-happen-on-360.ars
For the first game, Balestra estimated that they used around 30 percent of the power of the SPUs, now the team was able to use them to 100 percent capacity. Naughty Dog understands the Cell processor, and knows how to get it to sing. "The ability to use the RSX [the PS3's graphics processor] to draw your pixels on the screen, then you use the Cell to do gameplay and animations—we kind of took the step of using the Cell process to help the RSX . All those things are done on the Cell processor," he explained. "It really helps us getting that quality of lighting per pixel; the amount of computation is pretty crazy."
Naughty Dog also used the SPUs to add physics to the sound so things occlude properly. That means that if you're behind a door, the sound will reflect that. Effects will sound different depending on where your character is in relation to the source. "All that math is done on SPUs to immerse players into the environment," he said. If you have a surround-sound setup for your PS3, this could very well be your new showcase title.
This is what I mean by most developers are currently not "maxing out the system". They are simply not taking the time to recode their engine around the PS3's architecture to use it to the max. When you look at games that are coded for the PS3, namely GoW3 and Uncharted 2 as examples, you can see a game that truly shines and yet still has amazing graphics that blow away most other games.
If you have a developer that just takes a game created on one system, and then ports it over to the PS3, and doesn't bother to recode the game to the PS3, then it will run like crap. That to me is not "maxing out" a system. "maxing out" a system to me is what you experience when you play Uncharted 2. It's one of the most fantastic games I've ever seen. The developers have to play to the strengths of the PS3 to use it to the max.
I can understand why a lot of what I write goes over the heads of some of the people in this thread. They simply look at the GPU and go "oh it's the equivalent of a geforce 7800" without taking into account the SPU's, and figure that if someone fills up the GPU with crappy textures that the game is maxed out. My point was that here we are, years after the PS3 came out, and developers are still learning new tricks in how to use it properly and take advantage of the PS3's strengths. Also the time and expense with the newer consoles is rising exponentially, so more time should be spent with it on the market while it matures. The PS3 is an amazing machine, but it takes a lot of work to get what you want out of it, and if the developers don't spend the time doing so, they get a crap game like Marvel Ultimate Alliance 2.