Intel Arc Control: Best Profile.xml for Unreal Engine Titles

The objective is to modify the Driver-Level Profile to ensure that the GPU’s Thread Scheduling ($S_{thread}$) matches Unreal Engine’s worker thread frequency, preventing the common “Out of Video Memory” (OOM) errors in UE5.

File Path & Setup

1. Locate the Profile Directory: Navigate to C:\ProgramData\Intel\IGN\Profiles. (Note: ProgramData is a hidden folder).
2. The Target File: Look for GlobalProfile.xml or create a game-specific file like UE5_Base_Profile.xml.
3. Pro Tip: Always enable Resizable BAR in your BIOS before applying these tweaks; without it, the XML overrides for VRAM management will have a $30\%$ performance penalty.

Optimized “UE5 Engineering” Configuration Table

XML Attribute	Recommended Value	Technical Purpose
AdaptiveTessellation	Enabled	Smooths Nanite transitions without geometry popping.
AsyncComputePriority	High	Prioritizes Lumen light-grid updates over background tasks.
XeSS_Override	Ultra_Quality	Forces higher-fidelity reconstruction for blurred UE5 foliage.
PowerTarget	115%	Increases thermal headroom for heavy shader compilation.
FramePacing	Strict	Minimizes the “stutter-struggle” in open-world UE5 streaming.

HowTo: Engineering the Profile.xml Override

Follow these GameEngineer.net technical steps to manually inject performance flags for Unreal Engine:

1. The “Lumen-Stable” Power Hack: Unreal Engine 5’s Lumen ($L_{vol}$) can cause rapid power spikes. In your Profile.xml, find the <PowerLimit> tag and increase the value to your card’s maximum (usually 210W-250W for A770/B580). This prevents the GPU from “down-clocking” during intense global illumination calculations.
2. Forcing DirectX 12 Agility: UE5 requires the latest DX12 features. Ensure the tag <DX12_FeatureLevel> is set to 12_2. This ensures the driver exposes Hardware Ray Tracing and Mesh Shaders to the engine correctly.
3. XeSS DLL Redirection: If a UE5 game is blurry, it’s often using an old version of XeSS. In the XML, use the <LibraryRedirect> tag to point the game’s libxess.dll to the latest version in your Intel Arc Control folder.
4. Disabling “Deep Link” Hyper-Compute: For desktop users with an iGPU, set <DeepLink_Enable> to false. Unreal Engine can get “confused” between your Arc dGPU and the Intel iGPU, leading to crashes. Forcing all compute to the dGPU stabilizes the Render Thread ($T_{render}$).
5. Shader Pre-Cache Buffer: Increase the <ShaderCacheLimit> to 10240 (10GB). UE5 titles like Arc Raiders generate massive shader caches. A larger buffer prevents the driver from deleting shaders mid-game, which is the primary cause of traversal stutter.

<ApplicationProfile name="UnrealEngine5">
  <GraphicsFlags>
    <Flag name="AsyncCompute" value="1"/>
    <Flag name="ResBar_Optimization" value="1"/>
    <Flag name="XeSS_Version_Force" value="3.1"/>
  </GraphicsFlags>
  <PerformanceSettings>
    <Setting name="CoreClockBoost" value="2600"/>
    <Setting name="VoltageOffset" value="-50"/>
  </PerformanceSettings>
</ApplicationProfile>

Technical Explanation: Async Compute and Lumen ($C_{async}$)

Unreal Engine 5 is designed to be Asynchronous. It sends lighting data (Lumen) and geometry data (Nanite) to the GPU simultaneously.

$$Total\_Latency = \max(T_{lumen}, T_{nanite}) + T_{overhead}$$

By engineering the Profile.xml to set AsyncComputePriority to High, you allow the Intel Arc’s Xe-cores to process these two distinct workloads in parallel rather than sequentially. This reduces the total time the GPU spent on a single frame, which directly translates to higher FPS and lower input latency in the latest 2026 AAA releases.