Upgrading my gpu

ran.burdo

Prominent
Sep 20, 2017
19
0
510
Hi

I have a pretty old pc with:

ATI Radeon Hd6850
i5 2400 @3.1Ghz
8Gb Ram

I was thinking about upgrading my gpu, and I have an option to upgrade to Gigabyte Gtx 770 cheaper than usual.

Is it worth it? Is it a good enough jump in performance for about 100$?
Will it fit?

Also, if you think there are better options for this price range, I would definitely like to hear them!