How to power my nVidia GPU

I'm buying an EVGA nVidia GTX 660 (the superclocked edition) for my first PC build and I'm wondering how I'll need to power it. Does this GPU need auxiliary power, or am I fine just plugging it into the PCIe on my motherboard? Here are some specs:

GPU:
EVGA SuperClocked 02G-P4-2662-KR GeForce GTX 660 2GB 192-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card

Motherboard:
ASRock Z77 Pro3 LGA 1155 Intel Z77 HDMI SATA 6Gb/s

PSU:
Rosewill HIVE Series HIVE-650 650W Continuous @40°C, 80 PLUS BRONZE Certified, Modular Design, Single +12V Rail, ATX12V v2.31/EPS12V v2.92, SLI Ready, CrossFire Ready, Active-PFC Power Supply

Thanks in advance for the help! I'm sure it's a simple answer, but I still appreciate it.