My GTX 670 gave its life in service of +3y of great gaming and I tought it was time to try something new.
I went to the store and bought a MSI R9 390x 8GB. Thats when the trouble began.
I have the same problem, massive framedrops, when I look at the GPU usage it is everywhere between 0 and 100%, never stable.
In those moments when it realy counts, those heavy firefights/head to head races, it drops to 0% and games freeze for a sec or more.
Tryed msi afterburner, locked clocks and so on, nothing worked so far.
Lastest drivers installed, I even did a clean W10 install.
GpuZ detects the drops, CCC detects the drops, GPU shark only shows 4GB working ram.
Ingame its a mess
MSI R9 390x 8GB
intel SSD 245GB x2
Corsair 750W pro
corsair 16GB 1600Mhz
W10 64bit pro