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Radeon R7 Dual GPU lag spikes, first GPU goes low

Question asked by mmkstarr on Jun 22, 2018
Latest reply on Jun 25, 2018 by mmkstarr

System Specs:

  • AMD Graphics Card
    • AMD Radeon R7
  • Desktop or Laptop System
    • Laptop: Dell Inspiron
  • Operating System
    • Windows 10 64 bit
  • Driver version installed
    • Radeon Software Adrenalin 18.5.1
  • Display Devices
    • Dell monitor connected to laptop via HDMI, 1920x1080, 60 Hz refresh rate
  • Motherboard + Bios Revision
    • Standard most recent Dell BIOS
    • AMD FX-9800P Radeon R7, 12 Compute Cores 4C + 8G
  • Power Supply Unit  Make, Model & Wattage
    • Integrated power supply
  • RAM
    • 16 GB

Describe your issue:

  • Provide a detailed description of the issue you are experiencing and the steps required to reproduce the issue.
    • When I play NinoKuni II, periodically there is a lag spike that lasts about a minute, during which time in Task Manager > Performance,  GPU 0 goes down to ~20% from the near 100% when it's running smoothly (see attached screenshot). When it's running smoothly both GPUs are fully used. So, I am wondering why the Radeon software is lowering GPU 0 usage when it is required for the game to run smoothly. Is this a software error?
    • Playing with the following settings to optimize performance:
      • Anti-aliasing override, 2x
      • Multisampling antialiasing
      • Morphological filtering Off
      • Anisotropic filtering override, 2x
      • Texture Filtering: Performance
      • Surface Format Optimization On
      • Wait for Vertical Refresh: Always On
      • OpenGL Triple Buffering: On
      • Shader Cache: On
      • Tessellation Mode Override: Maximum Tessellation OFF
      • AMD Crossfire Mode: AFR Compatible
      • Frame Pacing On
      • AMD FreeSync On
  • Game: NinoKuni II through Steam
  • If possible, include a screenshot or video link of the issue
    • See screenshot of Task Manager > Performance GPU 0 status before and during lag spike.
    • I can download a screen recorder if you need to see the game lagging.