eldragon0 said:
Mhhm, that's generally what I'd say as well, however the restrictions on requiring a proper crossfire profile and the ability to upgrade to a second 980 if that need ever comes is a big swing in the green direction. Power isn't really an issue nor is cooling or space, but there will be situations where 290 crossfire will still lose out to a single 980 in 4k
Absolutely the 980 has it advantages. However, in your situation it makes much more sense just to get the extra card with the boost than to try and sell it. Make no mistake if you didnt have the 290 I would absolutely be recommending the 980.