Yup, I've been gaming on the same 30" for at least four years now at 2560x1600 with a 1950xt, 8800gtx as well as the MSI 260 OC thats in it now and it handles things to my satisfaction 2x aa.
Can't always played details maxed but it'll surprise you what a little time adjusting the settings will net in performance without a big hit in quality.
Needless to say it is time for an upgrade again, just waiting for the right time.
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