Well I bought this game last night. And I have worse specs than that.. Amd Phenom II 8gb ram and an Nvidia gtx 650.. I run this game at 40-50 fps on high settings and it runs absolutely great.... So I think you should be just fine
Well things are updated already. Everything looks good so I decided to jump in and give it a go.. This may be the thing that pushes me to finally upgrade lol.