Desirable as such a card may be, don't expect miracles when running TS2013 on it. The game core and graphics engine are old and perhaps even obsolete.
Also, nVidia seems to be preferred by RSC, as its logo is on the startup screen. Many of the AMD Vision Engine gaming profile settings don't work with TS2013.
I have a pretty decent 2012 AMD 6970 2 GB at 1 GHZ and the game in high/highest settings using FSAA + 2x2 SSAA only barely manages 30 fps in the relatively bare routes.
In built-up routes and with lots of activity, like NEC, at just scratches 14 fps.
For more than 500 bucks you can buy yourself or your gf a decent midrange laptop or desktop rig.
Nevertheless if you can afford it, the card will no doubt give you excellent performance in many current games.
How much juice does it need, how much heat and noise will it generate?
.. when not, there is always that next graphics card just over the horizon, or waiting there for you under the rainbow ...

