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Core Ultra Series 3 laptops

Switch 2 emulation on Intel Arc B390

Arc B390 is the 12-core Xe3 iGPU in Core Ultra Series 3 (Panther Lake) laptops, the largest Intel iGPU on this list. No reports yet.

Untested Nobody has reported it yet. Send a report.

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What we know

  • Untested. Send a report: yours would be the first.

Specs that matter for emulation

GPU architecture
Xe3 (Panther Lake integrated graphics, with XMX matrix engines)
GPU size
12 Xe3-cores, up to 2.5 GHz on the Core Ultra X9 388H
Memory
Shares system RAM: LPDDR5X up to 9600 MT/s on the Core Ultra X9 388H
Power
Core Ultra X9 388H: 25 W base, up to 80 W turbo
Found in
Laptops with the Core Ultra X9 388H and other Core Ultra Series 3 chips that list Arc B390 graphics
Driver
Intel graphics driver for Windows

From Intel, AMD and device makers' published specs. Power limits vary with model, firmware and mode.

Starting point for settings

Not tuned for this device: it's the setup from the tested Arc 140T laptop. Change one thing at a time and report what helps.

  1. Power

    Plug in and pick the device's highest performance mode. Put the mode and wattage in your report.

  2. Driver

    Use a current Intel graphics driver. Our Arc 140T numbers use 32.0.101.9175; report your exact version.

  3. Global-memory routing

    Add EDEN_NX2_GM=11 to nx2_switches.txt next to the emulator, or set it as an environment variable. It is the change behind the measured Arc 140T gain. If a game renders wrongly, remove it first and tell us.

  4. Frame generation

    In the graphics settings, turn on Enable Frame Generation and set Target Frame Rate to 60. Add EDEN_NX2_EXTRAPOLATE=1 for extrapolated frames (motion data is wired up for Ocarina of Time only). Report game fps, not the total with generated frames.

  5. Shaders

    The first visit to an area hitches while shaders compile. Judge smoothness on the second pass.

Notes for this device

  • Xe3 is newer than anything we've tested. Report the exact driver version with any result.

Have one? Send a report

One report turns this page from a guess into data. Include:

  • Device, CPU, GPU and RAM
  • The full graphics driver version (on Intel, like 32.0.101.9175; on Linux, the Mesa version) and the OS
  • Plugged in or on battery, and the power mode or wattage
  • The emulator build, every setting you changed and every EDEN_NX2_* switch you set (or "none")
  • The game and the exact spot, docked or handheld mode, and a screenshot of the scene
  • Average fps and, if you can, p50 and p99 frame times, measured after the scene settled

Never attach keys, firmware, game files, saves, shader caches, or logs that show your user name or folder paths.

Open the device report form

Questions

Does Guarana support Intel Arc B390?

It's untested. Guarana renders with Vulkan, which Arc B390 supports, but nobody has reported results yet. Send the first report.

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