Mad Shrimps posted a review on the FSP X3 VIdeo Card Power Supply

Today we test a dedicated power supply which relieves your main PSU from the load created by the latest high end VGA Cards. The X3 Booster allows you to use to re-use your older PSU and still run the latest hardware. Find out of the X3 can handle a high end Crossfire setup in an overclocked Core 2 system.

FSP X3 VIdeo Card Power Supply Review