compres said:
Acert93 said:
And in fact the PS2 can do that.
I dont recall any ps2 games having more than 1-2M vertices per second. In contrast both nintendo gamecube and xbox have better models and higher poligon counts than the ps2, the difference is they claymed way lower numbers.
How would you know? I mean seriously, other than running a title through a PA and looking at stats, how would you know the difference between a title running 2M v/s and 20M v/s?
For that matter, would you know the difference between a game using 2 TFlop/s and 1Tf/s? or 6Gf/s?
I think the point being raised here, and it's a very good one, is that people generally don't *understand* what the numbers mean anyway, they just like comparing them to try to guess which machine is going to be "better". And on that assumption, the companies don't need to get "real world" numbers, they just need to be using roughly equivalent calculations to give peak numbers and hopefully the numbers will be useful enough for comparison purposes.
In the PS2 and XBox world I think most XB "peak" numbers are about double the PS2 numbers. Personally I think that although XB titles do mostly look better than PS2 ones, the difference isn't quite 2x. However I think Sony do more to help people get close to the theoretical performance.
If anything, Sony are a lot more honest about the performance than the opposition sometimes are. Sony are the only current company who have released full details of their hardware to the public, including complete manuals and presentations detailing how to optimise for it.
This:
http://www.technology.scee.net/sceesite/files/presentations/gdce2002/HardTuningPS2.pdf shows a lot of details including a scan of a title (and lets be honest here, anyone that's use a PA can probably spot a Jak+Daxter scan a mile away) running at 10M polys/s or more, and that translates to between 10 and 30 million verts/s (probably nearer the lower bound of that if the stripping is good). Ok, even if you assume 15M v/s as an average that's only 25% of the theoretical, but it's certainly in a "game" situation with a lot of other stuff going on (lighting, animation, skinning, AI, light physics, etc.)
Accusing companies of lying because you don't understand what they're telling you, is a bit harsh. The PS2 manuals are "out there" so if you feel that one of their claims is not actually possible with the hardware they released, feel free to make a specific point.