No dont buy GTX 780 unless you can upgrade processor and other stuff too. You will need an i5 ivy or haswell processor at LEAST,otherwise it will be severely bottlenecked. Its like putting a ferrari engine in a motorcycle. Completely useless.
Saw you post regarding some assignments and reports you wanted written, and were perhaps willing to pay for those. May I know what exactly the work is and if it's still available? May as well be willing to do the job if paid a good penny as compensation.
Just because you broke your word with Foxdie and getting a deserving negative doesn't mean that you should give him a negative over something that is one year old and nobody can give two ratings for a single thread.
Consider this your final warning.
I'm removing Foxdie's negative that you have given him.
You bought the card a year ago and you gave a positive, the end.
After a year it occurs to you that it has some fault?