DX12 RT Memory Stabilizer

DX12 RT Memory Stabilizer is a small experimental configuration mod for The Witcher 3 Next-Gen DX12 aimed at reducing memory pressure during ray-traced gameplay.

It adds a single loose-file INI override:

bin\config\platform\pc\w3_dx12_rt_memory_stabilizer.iniThe mod tunes DX12/RT-related cleanup behavior, including:

• []RT resource cleanup cadence[/]

  []memory unloading behavior[/]

  []acceleration-structure compaction and defragmentation[/]

  []transient texture streaming pressure[/]

  []RTXGI clear-block cadence[/]

The goal is to improve long-session stability and reduce the kind of gradual memory pressure that can happen when playing with ray tracing enabled.

What this mod does not change

This is not a visual preset and it is not a hidden quality downgrade. It does not intentionally change:

• []ray-tracing quality[/]

  []RTXGI probe counts or spacing[/]

  []texture quality[/]

  []mip bias[/]

  []resolution[/]

  []denoiser quality[/]

  []lighting style[/]

  []gameplay[/]

  []scripts[/]

  []saves[/]

AI-assisted development 

This mod was developed with the assistance of agentic AI tools, which were used to help inspect configuration behavior, reason through possible DX12/RT memory-management parameters, organize the changes, and prepare the release materials.