Ok lets talk about GC... there are 2 kind: gamers and pro cards. The X generation from Nvidia is for game use, yes you can still use in production... BUT if you have the money go for a Professional video card (they dont play games!) for Nvidia there are the Quadro series that is for professional use only... very expensive (almost for me...) but very responsive.
Other thing is that Poser have a very old OpenGL engine that need to be updated... dont know when SM will do that or if they will do in the future...

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