What a mess! FPS plummeted unexpectedly.
What a mess! FPS plummeted unexpectedly.
Are you checking the temperature? Was your graphics card operating at its intended frequency? I had to restart it using MSI Afterburner today since it was clocking 400MHz instead of the expected 945 when I began playing BF4.
It seems the setup you have delivers around 45-60 FPS, which makes it unlikely you were running at a steady 45 FPS on a 750Ti and X570.
System turned off and performance is about 40 to 55 frames per second.