Hmm that looks like it might be a close call.
Have you taken a look at the system spec checker on the Split/Second
But we would be very interested to hear if you get it and you find it runs fine.
You can add comments and a score on Game-Debate for games. When you do this you can also log whether or not you were happy with how the game ran on your system. Let us know.
Alternatively you could check out PC-Specs.com
and that might be able to help you further.