So, I found this deal on a GTX 780Ti and it's so cheap but then I was wondering if it'll work on my motherboard
Msi MS-7613 Ver:1.1 Socket LGA1156 Iona-GL8E Motherboard 612500-001
I'm aware that I have to get a new psu also, I'm using an I5 750.
It will work fine. Goes into the PCIex16 slot. But its a very powerful card for that i5 you are rocking. So, dont be surprised if your CPU is like 100% and your card is like 25% - 30%. Thats not bad though, specially when you are getting it cheap.