I haven't upgraded my computer in a long time but one of the other threads I was reading got me interested in what people are using to run this game.
Core I7 5930k (40 PCIE lanes) @ 3.6ghz
SATA RAID 0 7200 RPM with 4 drives
2x GTX 980 SLI
4k TV monitor (3840x2160)
Gigabyte x99 motherboard with 4x SLI support.
Usually I have no problems running this game and only get occasional lag. There is no upgrade path for the CPU so I'd need to get a new MB/CPU combo if I upgraded. I don't know if adding a third GTX 980 would improve performance in 3xSLI configuration or if it would be better to switch to a newer graphics configuration. I used to have a Crossfire setup with two 5770s but they couldn't handle Risa in the summer at all. I wonder if the new 2080 graphics from Nvidia make any difference in this game with their built-in ray tracing?