Sudden Performance Drop - All Games/Windows Explorer

fortylightbulbs

Prominent
Jul 16, 2017
10
0
520
Custom PC could handle all the games I was playing easily, most intensive one so far was probably metro 2033 on highest settings, same with skyrim. Never lagged. A couple of nights ago I was playing Medieval 2 and in the middle of a batle it dropped to like 1 FPS. Since then every game I have played the performance has been very noticeablly worse. NBA 2k16 I played 30 hours without any noticeable lag and now it stutters every few seconds.

Temps stay below 60C on CPU and GPU, resource use is 0% for HD and CPU at idle and hasn't gone over 60% that I've noticed while gaming. Memory doesn't go above 70%, it's 20% at idle with browser and antimalware going.

I ran Heaven benchmarker and it gets 45 fps but still does occasionally stutter where before I'm pretty sure it ran smooth on high.

Radeon Saphire 7870, AMD FX 8320 CPU, 8gb ram
 

marko55

Honorable
Nov 29, 2015
800
0
11,660
This may sound crazy but run malewarebytes to make sure something didn't plant itself on your machine that's messing with you. Also see if disabling your AV application makes any difference. Sometimes they auto-update to a new version and crazy things can occur. After that we can all talk hardware.