Quote Originally Posted by Apatheist View Post
Would a single 1080Ti have enough VRAM and grunt to handle 20+ clients?
That depends on too many factors to really quantize.

Quote Originally Posted by Apatheist View Post
I was considering 2x 1080's. The price is similar and the extra 5GB of VRAM seems like it'd be more useful than the higher frequency on the Ti. Particularly on multi-monitor setups.
Highly possible, although when it comes to multiboxing and multimonitor configurations, there are always caveats. Some of these are going to be based on the game, others are goingto be based on settings, resolutions, and a few of the earlier too many factors to quantize.

Quote Originally Posted by Apatheist View Post
I guess it depends a lot on how well Innerspace handles load balancing on GPU's?
That all depends on how you configure it. Most of it is covered in these couple of pages:
http://isboxer.com/wiki/GPU_Management
http://isboxer.com/wiki/FAQ#Why_do_m...maller_viewers
http://isboxer.com/wiki/FAQ#WoW_was_...d_acceleration (this one is a bit more game specific).