Should I buy a surface pro 2 or pro?

Ok so I'm torn between the two. The only real improvements for the surface pro 2 are a improved processor, graphics card, better battery life, and a new adjustment for the kickstand. One thing I want to be able to do with this tablet is mild gaming. I know it can run fames such as portal 2, minecraft, and even skyrim on low graphics. The pro has a intel hd 4400 graphics card and a intel i5 processor and the pro 2 has a intel hd 4000 graphics card and the newer core i5 processor. So would the pro 2 be that much better for gaming? (and I know both can't handle really intense games) Keep in mind the pro is only 500 and the pro 2 is 900.

Added (1). I meant the pro 2 has a intel hd 4400 with the latest core i5. And the pro has a intel hd 4000 with older core i5.

What will be more valuable in 2 years? Always look to the future young one.