Originally Posted by StonedAlex
I'm thinking about selling my 780 ti and buying a couple r9 290's or a 290x and adding another one in a few weeks, since I'd like to start mining. Which cards would run coolest in crossfire? I've never used AMD or multi card setups and I'm not really sure what to expect, is it very buggy? I've been reading lots of contradictory information. Are you guys having any problems with stuttering, etc? Has the black screen issue been fixed? Does AMD have an easy way to overclock monitors? I'm sure all these questions have been beat to death but I really don't want to sift through 1800 pages lol.
You'll have to do some research if you want to make an educated decision on whether or not to start mining. To make your sifting a little quicker use the search function for the thread.
For LTC mining specific questions head here: http://www.overclock.net/t/1398250/official-tutorial-how-to-start-mining-litecoins
I can't answer all your questions but I can tell you what I know...
If you're not going to run under water then it may be hard to keep them cool, especially if they'll be mining. The Powercolor PCS+ has a triple slot cooler on it and seems to perform the best from what I've seen in this thread. Xfire them can turn into an issue because they are end up being so close together. Sapphire Tri-X seems to be the next most popular card. Guys with Xfire will likely chime in to tell you there experiences. I know one member was having a hard time keeping ASUS DC2 290s cool in Xfire. Haven't seen much of anything about the HIS IceQ or XFX Double D cards.
People seem to be having good luck with the multi-card setups, but they can have their issues with AMD or Nvidia...it's more work than a single GPU. Biggest issue right now seems to be Beta Drivers, but the 13.12 are very solid for everyone.
My card is pushed to the brink for a reference 290, 1295/1700, and it runs smooth as butter. I haven't had any stuttering issues personally, but this is with only 1 card. I can say I don't recall seeing anyone complain about stuttering since I've been active in this thread for the last few weeks.
I do believe the black screen issue was a fairly small batch of cards right after release; Haven't seen many people talking about it.
Don't know about OC monitors.
Best of luck to you with your potential upcoming project