bloodhound202 :
Andrei-Florin Gogan :
The R9 280x is better. The R9 380 is a rebranded R9 285with a few new features that do not affect performance. Make sure you have a good PSU for it tough. Also to keep in mind is that the R9 380 is newer technology and supports DX 12.
Wouldn't the R9 380 be better then since I hear that DX12 support will help in future games
As of now......they will perform rather similar and . It comes down to your budget honestly. It's going to take some time to implement the full DX12 and we are talking probably 2 years and by then these 2 cards will only play future games at medium which most of the people don't like. I never kept a GPU for longer than 2 years.