If I had such computers available, I'd do so, if it was legal though (the part of installing 3DGS on other computers without a team license is the big one). I've given my test subjects so you can test it yourself. All you need to do is take note of the kps value and average it out ignoring sudden drops. Then, given the numbers, I could plot them on that logarithmic graph I made. For some, especially with 3.8 GHz processors and the very latest video card, they could be getting 12 million polygons per second as their peak (a semi-random guess). My motherboard only has AGP available (no PCI-express like the newer cards only seem to have) so I can't get the newer cards without first swapping the current motherboard.

The hypothesis is that, with the processor, video card, and video card drivers from the same date of creation, the peak is going to be roughly the same. When an old processor is used with a new video card, the peak will be much higher (~6K) and when a new processor is used with an old video card, the peak will be much lower (~800). It's only a hypothesis though and not tested. I don't have such a test environment to doing this with so it'll be difficult for me to analyze and verify it.