11 Replies Latest reply on Jul 25, 2016 2:44 PM by amdmatt

    MASSIVE DPC Latency on RX 480 - Audio Crackling & Microstutter. Solved - ASUS GPU Tweak II culprit


      Hey Everyone,


          So I'm having an issue that I finally just pinpointed to the video card (RX 480). Using LatencyMon, I am seeing MASSIVE and frequent spikes with the RX 480 drivers installed. This is causing audio crackling in some games (not all, but some examples are Mirror's Edge Catalyst, Just Cause 3, and GTA V) as well as some frame pacing issues (micro stutter). Attached are two pictures. The first one is the DPC Latency in Mirror's Edge Catalyst with the RX 480 driver installed. The second one is the DPC Latency in the same game and at the same scene with NO DRIVERS installed for the 480 (and yes, the game runs like a slideshow, but note no DPC Latency spikes).


      My full setup:


      AMD FX-8350 @ Stock for now

      ASRock 970 Extreme4

      12GB Corsair DDR3 RAM @ 1600MHz

      Sandisk Extreme Pro 960GB SSD

      Corsair CX500 80+ Bronze PSU

      ASUS RX 480 @ Stock for now

      Windows 10 64-bit

      1680x1050 Gaming Resolution

      All latest drivers and BIOS


      **EDIT** Just a bit more info: Games where there AREN'T any audio crackling: WoW, Witcher 3