i5 750@3.6GHz, R9 290 from a HD7950, useful?

Title says it all really, I'm on a single 1080 monitor due to space limitations.
With prices now creeping below £300 I'm tempted to go for a Tri-X card and suffer a small restriction in performance while I wait for the next gen of CPUs to turn up so I can pension off the long suffering i5 rig.
trouble is I'm torn between my urge to upgrade and the news that Maxwell will be available later this year.
Thoughts anyone?
 
Solution
That would be going from a 280 to a 290. It would be an upgrade, but not a worthwhile one. Unless you arent satisfied with the 7950 I wouldnt replace it, the 7950 can run a single 1080p monitor well.