I've just checked with the latest version that appears to be out (335.23 10th March 2014) from when I first made a note I'd made about a month ago, and the numbers haven't changed. The problem is there has been alpha updates since then, so it's a moving playing field at the moment...
Optimised drivers that affect a particular games for the better tend to be made after the game's release, which I assume is the result of NVidia and the developer work together to achieve this, and therefore won't have happened yet?