Upgrading from 560ti, need some advice.

[Zanna]

Ok I've had my 560TI now for quite some time and it looks like it may finally need upgrading. It's been struggling with newer games, couple that with this whole mess with nvidia and the newest drivers has me still running on the 314.22 drivers as they were the last stable.

Currently running
Intel I5 2500k at 4.5ghz
8gb Ram
650watt OCZ ZS
AsusP8Z68-V/GEN3 Mobo

Do you think I'll need to upgrade the PSU? I know if i tried to overclock the GPU by even a small amount the pc would lock up. Same if I tried to take the CPU to 4.6ghz (This is the old Spinosaur build and it was never stable at 4.6ghz)

I'm looking at upgrading to something that will keep me for a couple of years again (hopefully) but I'm looking at a budget of about £200 for the card. Can you guys give any advice on card choices and if I need to change anything?

Thanks in advance

 

[Zanna]

I currently run games at 1600x900 as that's all the monitor I currently have will do. I will be changing to 2 screens in the future and possibly bigger ones at that.
I'm after performance mainly, I do play a few physx games like Borderlands 2 but I could always just use the 560ti as a dedicated card if I chose to go AMD again.

 

[Zanna]

If I did go AMD again would my PSU be up for running the 560ti as a physx card or would I need to upgrade?
I mainly want something that will last me a while again, It does look like going amd and getting the 7970 would keep me happy for a year or 2 though.