Best Upgrade from A6-3620

[Tkerb1]

I have a pretty low end gaming desktop with a AMD Radeon 6670 and a stock A6-3620. I was looking to upgrade the card to a GTX 750 Ti 2gb, but I was worried that it would be bottle necked by the low GHz (2.2) of the A6. My power supply is 450W, so I figure it should be good to go, but the A6 still worries me. Is the bottle neck negligible, or should I simply replace it? (I have ~$350 budget so high performance is second next to price.)

Any opinions and/or suggestions would be appreciated.

 

[CTurbo]

450w is plenty for a GTX750ti. Can your motherboard support 100w cpus? You could get an Athlon x4 651k for under $90 and get a GTX 760 for under $250. 450w is pushing it for a 760 though.

 

[Tkerb1]

450w is plenty for a GTX750ti. Can your motherboard support 100w cpus? You could get an Athlon x4 651k for under $90 and get a GTX 760 for under $250. 450w is pushing it for a 760 though.

Considering the price, I think I will simply get an Athlon 750k, as I heard it was pretty good (if the 651k is better please say so), but I am unsure about anything with the motherboard, as I have only changed the power supply and graphics card in my computer at the time (some explanation on the cbus would be great!)

 

[CTurbo]

The Athlon x4 651k is a drop in upgrade that you use in your current motherboard. The Athlon 750k would require getting a new motherboard.

The 651k is the best cpu that fits in your current motherboard.