NO!!! That's like saying we cut down the tangly bits of rainforest so we can see the pretty flowers. As a World Internet Heritage Thread, we have to take the bad with the good. It's like Grade 1 listed buildings that are ghastly concrete lumps - they're protected to show how wrong 1960s architects were. Heritage Threads must be preseved exactly as is. If anything mods should take measures to protect posts from being edited before it's to late!
Isn't it accepted that the GPU is modelled on Flipper, using the same architecture but clocked faster and with some extras? I think we even have hints of how many functional units it has too.
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You won't need any increase for the vertex/geometry work (assuming same geometry complexity when rendering 720p, and it's not the case that XB360 is using XB assets!), but will for the shading and drawing side of things. As that's the predominant workload on GPUs, a 3x resolution increase probably needs in the order of 2x the 'power' to render, and 3x the BW. When you up the resolution of textures and meshes, you push up the needs a little more. I think a ballpark 'requirements increase=resolution increase' is about right.
