NVIDIA has released its GeForce 358.50 drivers today, in order to improve performance in the Star War Battlefront open beta. Along with that comes an SLI profile, also specifically aimed improving performance in Battlefront. You can grab both at the source.
The beta begins tomorrow. You should be able to get started via the Origin client when the time comes.
Battlefront is developed by DICE, the guys behind the acclaimed Battlefield series. Word on the Internet is the game was surprisingly fun in the closed beta. However, it doesn't support dedicated servers.