But then, measuring a GPU in polygons per second is like measuring a motor by its unloaded top speed.
You're ignoring all kind of important factors like shading and whatnot.
Unless you're planning to write a game that just draws hundreds of thousands of flat, unlit, untextured triangles?
Edit: I heard we only have 2 shader processors, this concerns me since I heard the SGX was going to have kickass shading. But the demo videos are still promising.