Polycount and Display Size

[smilinmike]

I'm in the process of evaluating WireFusion for an upcoming project. I've been through the website and searched the forums, but couldn't come up with a definitive answer to my questions, so I'll ask them here:

What are the the upper polygon limits for the Software Render Engine that still maintain good performance (ie framerates)? 50K?

For the OpenGL Render Engine?

With an upper polygon count scene, what kind of framerates can I expect?

I also gather that the size of the display can affect the performance.

What is the maximum display size for a high polycount scene for the Software Render Engine? 640x480?

For the OpenGL Render Engine?

Thanks for your input.