My CPU is an old E5400 2.7GHZ. I bought a 7850 XFX Core Edition and it coil whined really bad. I asked for a refund instead of a replacement. I rarely game on my desktop since I mainly play console games. I have a 9600gt 1GB card in my system right now. I bought the 7850 because it was cheap. Should I ask for a replacement or get a card that won't bottleneck my system too bad. Honestly, I couldn't notice the bottleneck in my computer with the 7850 since I don't hardly game at all. If the 7850 is not an option should I look for a 7770, 650, or a 650ti. My price range is below $140. Also, my power supply is an XFX 450W Core Edition that didn't have any trouble handling the 7850 that only had one 6pin connector.
More aboutlooking basic graphics card
Even 7770 will bottleneck on your cpu. I say keep that 7850 and oc your cpu. Until you buy an i5 cpu keep your current system. Make fund for system upgrade.
i5 2500K = 200% of the price of Phenom II x4 965 BE i5 2500K = 25% better than the Phenom II x4 965 BE
At least, in the UK, the 965 can be found from £70-£80, and the i5 for no less than £163 (checked the other day).
965 will work good with oc i hope, but cant beat a i5