I found something I thought was very amazing, but I am not an old hand in intensive computing, so I will ask, and you can tell me what you think of it.

The first thing I found was Octane Render ... which lets you adjust in real time in the render engine.  Buy in at the Beta level and then upgrade to a liscense:

This uses CUDA technology from Nvidia ... and there is complementary hardware to go with it: ..

Namely CUBIX .. it comes with a PCI-e card which connects it to your machine and it absorbs all the CUDA rendering work of the applications which are leveraging this (i.e. Octane -- or others).

Here are the links, and I would very much like some informed opinions, if you would:

 

Octane  --- http://www.refractivesoftware.com/index.php  ($134 US, to begin@beta)

Cubix -- https://www.cubixgpu.com/Solutions/Accleware  --- this is the very fast one!

Other CUDA leveraging software:

http://www.mentalimages.com/products/mental-ray.html

http://www.randomcontrol.com/arion

http://www.bunkspeed.com/move/index.html --- originally for automotive sales.

 

Tia!