3870X2 uses less power but still needs 2 connectors
![](http://img.hexus.net/v2/graphics_cards/amd/HD3870X2/DSCF5568_cropped-big.jpg)
notice the 2 power connectors top right corner of card
the 3870X2 has a far superior design.. the nvidia uses 2 PCB boards slapped together.. while ATi uses 1 PCB board with 2 GPUS soldered onto it.