Quote from: Joebrann on March 01, 2016, 10:43:34 PM

Quote from: Chronikka on March 01, 2016, 10:40:02 PM

Quote from: Joebrann on March 01, 2016, 10:26:03 PM

Looking into building a rig for mining XMR ect. What are the best GPU's for that right now?

Thanks for the help and this should help newbies in there research as well. Also I'm not looking for necessarily energy efficiency more hash power I know 290s are good but price wise better to get 280s and run them in crossfire or sli?

280x and 290 are definitely the way to go. 290 is a slight performance increase but the 280x costs less. If you get the right 290 you can flash the firmware and run your 290 as a 290X which will give a marginal increase. But the newer 300 series are not worth it, they cost more for the same hash power. If you can get your hands on some used 7970s at a good price they are about the same as the 280x. They provide a little less hash power, but they cost less as well. The difference between the 7970 and 280x is about the same as the difference between the 280x and the 290.

If Energy efficiency isn't your concern you could look at some older 6990 or 7990 dual GPUs, but they're harder to find

And whatever you do, don't run them in Crossfire, that will only hurt their performance mining.

Thanks, so sli is fine as there all running independently correct? I've only ran one GPU so upscaling now.

No SLI is for nVidia graphics cards only. Crossfire is for AMD cards. You won't be able to put the cards into SLI if you have AMD cards (which is the 280x/290 product line). For mining the best thing to do is run each card independently. You would just install them like any other graphics card and then not go through with the setup for Crossfire. If you're using Windows it should have no problem detecting multiple graphics cards.