Specing a New Machine for Point Cloud Work

I'm about to buy a new machine.  CPU Cores, System Memory, Flavors of GPU (looking at K5000 Quadro).

I know iRay is GPU rendering.  I do not do stills.  I'm a animation Backburner guy.  I'm getting the impression IRay din't play ball very well in this area.  Renderfarm nodes were never populated with advanced GPU.

I use Mental Ray or Scanline. Sounds like CPU Cores and system RAM is the issue for me.

I don't know what resources best enhance Point Cloud dataset work in MAX, AutoCAD (and ReCap?).  Will K5000 or K6000 graphics cards do a thing for point clould performance in viewports or rendering?

Difficult to spend money wisely and get the best system when I don't know how resources are utilized in what situations.

Please advice asap.

I'm hoping an AutoDesk tech will see and respond to this.

(Any endusers with knowledge in this area welcome.)

Thanks.

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