Your processor isn't so great, but with that gpu and ram you should be able to run CS:GO in minimum or even medium just fine. To check the FPS yourself, once the CS:GO application opens, go to your console [~] and type in/copy+paste "cl_showfps 1" and your fps will show in the top left corner. To turn it off, type in "cl_showfps 0" in the console.