Grab two of those, overclock, and play every game you want at ultra settings.http://www.newegg.com/Product/Product.aspx?Item=N82E16814202026&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
Performance will exceed that of the Titan or the GTX 690.
The reason why I recommended two HD 7950's instead of two GTX 760's is because the HD 7950 gains more performance than the GTX 760 via overclocking and thus becomes the faster card.
An overclocked HD 7950 rivals an overclocked GTX 670. Not 760.
You also get 6 games for free, which is too hard to pass up.
I didn't see that i was posting in the UK version of toms hardware.
In the UK, there's no question about it, the GTX 670 is the best choice.http://www.scan.co.uk/products/2gb-zotac-gtx-670-amp-edition-28nm-pcie-30-6608mhz-gddr5-gpu-1098mhz-boost-1176mhz-cores-1344-plusfr
Grab this card and don't look back.
It's overclocked out of the box, so you don't have to tinker with it.
Performance is on par with the GTX 770.