Cornman said:
I think releasing A YEAR after Xbox360 it should be more powerful.
The problem is 1 year is not as significant as the process in which the chips are made on.
e.g. both the Sony PS3 GPU (RSX) and Microsoft Xbox 360 GPU (Xenos) are on the 90nm process.
Outside of architecture the only real way to make one chip faster than the other would be to make the chip bigger. This means more heat, more power, lower yields, and significantly higher costs.
Since GPUs are just now hitting the 90nm process and the 65nm process is immature at this point, especially for GPUs, it is almost guaranteed that Nintendo's GPU will be on the 90nm process.
Considering the small size of the Revolution there will be limits to the size of the chip due to cooling. So that either means smaller chips, lower frequency, or better cooling.
Based on Iwata's comments about SD and not being as powerful (but negligable at 480p) I am pretty sure that Rev will not be more powerful.
Further, looking at the GPU market ATI could have released R580 this fall. Yes, that would have 1) cost a lot of money and 2) had poor yields, but it was possible. So time itself is not an estimate of power.
In general, over time, power goes up over time. But there is no hard and fast rule stating a chip released later will definately be faster. We have seen in the PC CPU market this is not always true, and even in the GPU market (e.g. look at XGI and S3, their new chips have a hard time competing).
Process, process maturity, architecture and innovations, bottlenecks, tools, etc... are all much more significant to a consoles "power" than the time it is released. As far as we know Nintendo is waiting until Fall 2006 to ensure they can get the right balance, for them, of cost effectiveness and performance.