Evan,
It will be used to run Wilcom as well and yes I use realistic view as well. I also have PS on the system. Keep in mind the OS and all the programs are on the SSD while all other files are on 7600rpm drives with 16gb RAM on Win 7.
Be careful with cpu based video on a 32bit program (which Wilcom is). As that affects how much RAM the program sees. A 32 bit program has a cap, while a 64 bit program can see much more. A portion of that cap may be "seen" by Wilcom as being taken up by that video usage. So while you might think that Wilcom is going to be able to use 3GB, it actually sees 2GB etc.
I had, at one time, had a video card that was setup like that. Complicated designs (like the recent dog pictures that I had posted in the embroidery forum) would take up to 5 minutes to re-render after an edit using realistic view and that was with not doing any other process (of my choosing, who knows what MS processes were also running at that time in the background).
This also isn't getting into the differences of cores between the two and how they each handle data that's being used.