Ssd or new video card

i currently have a gtx 660 signature 2 and have enough money to buy either a Kingston HyperX 3K 120 GB for about $100 or i can get a Gigabyte GTX 760 windforce for about $150. I only have enough money for one which one should I get?

 

 

Other spec:

1tb hard drive

Patriot Viper 3 Series DDR3 16GB 1600MHz

Cooler Master GX - 650W

GIGABYTE GA-990FXA-UD3

AMD FX-8150 Zambezi 3.6GHz

Get the ssd, the 760 is just slightly faster than the 660.