Great review! OCing all the cards to the max and then evaluating is right on. Not enough to upgrade X-Fire 290x/290 for 1440p gaming, already getting 60fps + on games maxed out for the most part limited by monitor refresh rate. I would see no benefit except for games that don't run well in X-Fire.
Now some multiple card testing, multiple monitor testing would be nice to see as well.
Now some multiple card testing, multiple monitor testing would be nice to see as well.