Upgrading to a GTX 760

I'm hoping to take advantage of the black Friday stuff this week so I'm considering replacing my current GTX 650 with a 760 direct cu II. My only concerns are that the upgrade may not be worth it depending on how much of a performance increase I would get and can my psu handle the upgrade.

Here's all my specs:

Motherboard: ASrock Z77 Pro4-M 1155 MATX

CPU: Intel i5-3570K

HDD: WD 500GB Sata blue

GPU: EVGA GTX 650 1GB

PSU: Corsair CX 600 80+ Bronze

tl;dr: If I swap a 650 with a 760 will it be faster and can my psu handle it?

EDIT: current gpu:http://www.microcenter.com/product/400524/01G-P4-2650-KR_NVIDIA_GeForce_GTX_650_1024MB_GDDR5_PCIe_Video_Card

pending upgrade:http://www.microcenter.com/product/416680/GTX760-DC2OC-2GD5_NVIDIA_GeForce_GTX_760_DirectCU_II_Overclocked_2048MB_GDDR5_PCIe_30_x16_Video_Card

Your PSU can handle it just fine.

The 760 is about twice as fast as the 650Ti in most games. Though it's probably worth seeing exactly what deals there are on the day, you could get something like a 7970/280x or a 770 for not much more.

Personally I'd jump to the 770. It's like 70$ more but you're getting last year's flagship supercharged.

(gtx 760 owner)

http://www.microcenter.com/product/418038/04G-P4-3773-KR_NVIDIA_GeForce_GTX_770_ACX_Cooler_4096MB_GDDR5_PCIe_30_x_16_Video_Card