The base Alienware 15 outperforms the best Alienware 13 by approximately 20%. The Alienware 13 is not as weak as I originally thought it would be. If you need something highly portable, I recommend the Alienware 13. It's built very well and handles games better than other 13" laptops within the price range. The R2 has a better battery. I'd wait for that. Performance-wise, the R2 is not going to be much better.