I bought a Sapphire RX 480 NITRO OC 8GB (1342mhz) ,and from some time ago the frame rates started dropping dramatically in every game.
I play World of Tanks a lot and i easily get over 100 fps all maxed out at 1080p, but the dip sometimes goes down to 15-20 fps and then it goes back to 100+ and its constantly doing that.
I also tried and verified the same results in Armored Warfare, Doom 2016, Fallout 4, Modern Warfare remastered, and Arma 3.
My system is:
FX - 8320 CPU at 3500mhz
ASROCK 970 Pro3 R 2.0 Motherboard
20GB of Kingston DDR3 ram at 1600mhz
LC Power 650 Watt PSU Silver 80 Plus
Asus VS228 monitor, 1080p 60hz
Currently using Windows 8.1 64 bit
Would appreciate some input in order to determine if its time to send it to warranty or is it something i´m overlooking. Thx.