Sapphire TriX and Vapor X cards are the best 290´s.
Dont go with the Asus DCUII this card has cooling issues.
https://www.youtube.com/watch?v=pYxmW4JiJs8
Tri-X vs XFX:
https://www.youtube.com/watch?v=ny2xtrT4AiU
TriX vs Gigabyte Windforce.
https://www.youtube.com/watch?v=TPgEIxT6gqA
Vapor X vs Powercolor PCS+
https://www.youtube.com/watch?v=UwHOOer9LgA
TriX vs Msi
https://www.youtube.com/watch?v=4ZlZM-UCXQA
TriX vs Vapor X
https://www.youtube.com/watch?v=iN2sXD43xH0