560 ti ex oc vs 660 ti

[Chunkyfunk]

Hey all, I've got a comparison question.

I currently have this http://www.kfa2.com/gtx560exoc.shtml

I'm looking to upgrade for roughly the 250 quid mark, and this has caught my eye http://www.novatech.co.uk/products/components/nvidiageforcegraphicscards/nvidiagtx660tikeplerseries/n660tipe2gd5oc.html

What do you guys think? I've heard one or two mentions about the 7950, but I'm a touch hesitant about switching from nvidia to ati, mainly because it's what I know works. Also I've seen a few people have problems with the driver switch over.

Any suggestions, or any extra info you want... obviously let me know.

Thanks in advance.

 

[Mousemonkey]

In gaming the 660Ti is is about twice as powerful as a 560Ti, at least that's what I found when benching my 560Ti's against my 660Ti's.

 

[Chunkyfunk]

Okay cool. That sounds promising. The games I play mostly are Skyrim and Planetside 2. They perform similarly really - smooth when not much is going on and quite choppy when it starts getting hectic. My main worry is that I'll spend ~£250 and get minimal increase in performance.