ethomaz said:
I guess the big change from PS360 to Wii U is the available RAM for developer... 1.5GB is way better to work than 512MB.
The tri-core PowerPC (the lastest release to date) is nothing so different than the PowerPC used by 360.
And GPU not surprise me yet (that's my bigest unknown).
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The Xbox 360's Tri-Core Xenon processor is a Power6-based processor, only customized to Microsoft specifications and better than stock.
The Wii U's CPU is a Quad-Core Power7 processor, from the sounds of it, with some customized specifications for Nintendo.
There is a significant performance difference. The Wii U's processor is capable of 132.5 GFLOPS, compared to 96.0 GFLOPS for the Xbox 360's Xenon processor. If you want to quantify it, the CPU performance is 30% better than the Xenon processor in the Xbox 360.
Some additional differences, the Power7 processors have L1, L2, L3 caches (referenced as Core in the OPs list), the Xenon has only an L1 and L2. The Xenon has 2 threads per core, the Power7 has 4 threads per core. This means rather than the Xenon being capable of having 6 things it can do at once, the Power7 CPU can, in a 4 core arrangement, do up to 16 different things.
Given that the GPU is also of better performance, it stands to reason that overall the Wii U is more powerful than the Xbox 360.
With regard to the PS3, the Cell processor weighs in at 102.4 GFLOPS. Slightly better performance than the Xbox 360, but the CPU performance is still less than that of the Wii U, and the GPU in the Wii U would be significantly better than the RSX. Not to mention, the Wii U appears to use the same memory architecture as the Xbox 360 (unified memory). Depending on what the OS uses, this should represent better performance and games than either the current Xbox 360 or the PS3 can offer.
Is the performance difference going to make an impact? I don't think so. But there is a significant performance increase. Just, it isn't significant enough once the next PlayStation or Xbox is released.