I'm running the SH series on a 64-Bit system with 12 GB and a
ATi Radeon HD5700 card.
Now - I believe that most of you laugh at the fact that I'm running
the games with such an antiquated video card...

But it works perfectly.
I have this rule of thumb: If it works with the latest FPS then
it
must run with a subsim.
From a programmers point of view: The guys from Romania
are good in wasting resources - a subsim is not exactly
an application that should require a top notch card.
Heck - the first sims back in the 80's were subsims - because
they didn't require too much resources...