It definitely not the greatest but it will run games. ARMA will be tough to run and you will probably have to run it in lowest settings. Battlefield will have to probably be at medium. You will not get great fps. But it will be a console
here are some better ones
http://www.newegg.com/Product/Product.aspx?Item=N82E16883229362
http://www.newegg.com/Product/Product.aspx?Item=N82E16883227537
and this one is a little bit more
http://www.newegg.com/Product/Product.aspx?Item=N82E16883229437