From what I seen, especially with say textures not loading at all, i.e. batman in ONE scene out of the whole video comparisson is that these games have porting bugs.
Hopefully they can be fixed via an update here or there. but i don't know how they ported the games so these little annoyances will drive you nuts.
Which leads me to my biggest issue with current gen and all gens to follow. BLoody updates. because we have allowed them developers are more rushed than ever by publishers to get a game out because they knwo they can probably fix it with a patch.
As for CPU, the tekken developers said it was slower (clock speed) and they said you cannot rely on pure speed to get things done, like the 360/PS3 did. He did however say the GPU offered ways to resolve the issues they had in tekken 2 and that these things were not able to be done by 360/ps3 gpu. The developers who have complains about the CPU are mainly PC developers.
Now lets look at PC developers in general (not just gaming).
Software for example. Why do newer version suddenly take up much more ram and space than they did in the past if they don't really offer aything substantially new? Web browsers, office, cd burning software, adobe etcc.. programs that are barely upgraded with features and yet they seem to always waste more space. It is because it is less optimised than in the past. Why? because the space is available. I don't know if you have ever done any programming classes, but there are many ways to acheive the same output. One example I can give of this is a program we all had to write, my mate who has been programming since he had a commadore 64 lol, can optimise his programs very well. So well infact that his program was smaller and better optimised than the teachers suggested solution. Now my other mate who thinks is an excellent programmer (compared to regular people sure), achieves the same outcome in about 4x as much code. Sadly this is the level that most programmers are at. Me personally I hate programming and suck at it so I won't judge to harshly.
This is why when you look at say pure console developers, They can achieve some amazing stuff on 360/PS3 because they know how to optimise the hardware to get the best out of it. Where as the PC develoeprs rely on the raw hrose pwoer to get their games running.
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