3 way rx 480s

Solution
crossfire is very scalable with current amd cards. polaris is just a continuation of gcn architecture so there no reason to think that 2-3 or even 4way crossfire will be an issue.
amd isnt nvidia and for the most part there drivers have been good for things like multi monitor and multi card support for the last 5 years or so.
yes there were some issues when crimson arrived but for the most part the bugs have been worked out. although there are still issues with high refresh rate high dpi, multi monitor support.
We don't know much about the RX 480 as it hasn't been released yet . But it will be on 29th. By the time you spend that much money I highly suggest you get the GTX 1080 as it is a very stronger powerful single gpu. Some games don't even support crossfire or SLI and if they do it doesn't mean it going to take full advantage of it. Performance could be worse, better or the same. That's the down side about it and it seems like Nvidia is trying to get away from that. Just get a single 1080 or SLI two 1070s.
 
crossfire is very scalable with current amd cards. polaris is just a continuation of gcn architecture so there no reason to think that 2-3 or even 4way crossfire will be an issue.
amd isnt nvidia and for the most part there drivers have been good for things like multi monitor and multi card support for the last 5 years or so.
yes there were some issues when crimson arrived but for the most part the bugs have been worked out. although there are still issues with high refresh rate high dpi, multi monitor support.
 
Solution


The issue with Crossfire is the inherent issues that come with it. It may not be as bad as it used to be, but you still do not get as smooth of frame delivery as a single card. You still have double the latency as a single card at the same FPS. You still have to wait for Crossfire support which doesn't always come. You still have twice the noise and heat.

For the same price and almost the same FPS as 2-way rx 480's, a 1070 is there. A 1080 is about the same cost as 3 way, and while slightly slower, it'll be close without any of the issues.
 
yup. but i was answeing the ops question as to whether 3 way xfire is a thing. which it is. 😉
most of the benches ive seen over the last day have shown 2 rx480's beat the 1070 by a good margin and fall sort of the 1080.
there are also other issues which i mentioned in my previous.
personally i wouldnt touch the rx 480 till we get a clear answer on whether the card is pci-e is compliant as far as power draw goes.

seems its drawing way more power than it should at stock. although when you oc any gpu you will draw more power from the pci-e anyway.


 


 
I now have 2 Asus ROG STRIX RX 480 OC 8GB cards in crossfire. With Asus, 100% of the power goes through the 8 pin connector, so there isn't a draw on the PCI-E slots. Together, these 2 cards are a beast!