Good 290Xs

When will the 290X TOXIC, Lightning, and Matrix be released?

Your title implies you want to know which one will be best. Just look up temperature tests. I don't know when those will be released.

I want to know when they will be released.

the Toxic will never be released, the Sapphire R9-290X Tri X, is the top model of sapphire, it has a improved toxic cooling unit, But they named it Tri X.

About the other cards.... who knows?... call asus and msi ?

they've not announced any of them

they will come out when they switch over to the new models.