If you are looking for more performance, the "best" driver depends entirely on your Operating System. 1. Windows 7 (The Sweet Spot)
Q: How do I know if my graphics driver is up-to-date? A: You can check the version number of your graphics driver in the Device Manager or by using a driver update tool.
: Intel® Graphics Media Accelerator 3150 for Windows 7 32-Bit .
If you want the from an Atom N550 graphics chip, you must abandon Windows. The open-source driver for GMA 3150 is significantly better than anything Intel ever officially released.
, which provides basic desktop responsiveness but lacks the advanced features found in newer WDDM versions used by modern Windows iterations. Intel Community 2. Pursuit of "Better": Performance and Tweaks