Memory Leak Fix (for any GPU)
⚪ Last updated 2023⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
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🔍 Analysis
- 👍 2.3% endorsement rate — high engagement, a strong quality signal
- 🏆 #8 of 16 Performance mods in this game by downloads
📋 About This Mod
This memory leak is triggered when you are using RT GI and ur GPU VRAM reach over 95% usage at playtrought or even after few loading/fast travel, then soon after memory leak issue is triggered, you can observe it by ur GPU PCI-E BUS usage (you can check this e.g. in GPU-Z in sensors tab) will grove 2-3 times higher, this behavior causes massive FPS drop with stuttering all the time until you restart game or exit to menu.
This fix is mostly for GPU with lower VRAM size then 20GB for 4K resolution or <16GB for 1440p and <12GB for 1080p.
How to install:
1) Unpack "0_TW3_Memory_Leak_FIX.zip" and Copy this ini file:
0_TW3_Memory_Leak_FIX.ini
2) to the following folder: \bin\config\platform\pc
*sometimes, probably at first run after applied mod ini, game may automaticly change ur Textures settings to "Low" but it won't be working like low, only on quality you had before, but after changing them back to High or what you had it will stay at it.
To uninstall just delete this ini file.
Memory leak fix ini file settings include:
EnableCustomMipBias=true (this settings enabling in game engine ForceCustomMipBias to be working and changing)
TextureMipBias=-0. 2 ( this settings don't work when EnableCustomMipBias= is true, but to be calm i have set it to -0,2)
TextureInFlightBudget=256 ( I am also unsure why CDPR set TextureInFlightBudget to a value of 500 for all texture settings, even for Low, while in version 1. 32, even Ultra had a value of 128. Therefore, I set it to 256 and noticed a slight improvement in VRAM usage.)
ForceCustomMipBias=-0. 5 <- (Lower values improve texture quality but increase VRAM usage. You can reduce this value further, but it will progressively increase VRAM consumption. For RTX 3070/3080 maybe ForceCustomMipBias value around =-1. 0 will be ok or increse Texture setting, but you have to test by urself to find "sweet spot". ( The maximum is -2. 0, but this disables the fix in use. If you want a higher value, it's better to set textures to Ultra
Memory Leak Fix (for any GPU) is a performance mod for Cyberpunk 2077 that addresses a memory leak triggered when VRAM usage exceeds 95% during gameplay or after fast travel, causing GPU bus usage to spike. With 625 endorsements and 26,625 downloads, it's a community-tested fix for a common issue.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Directly targets a frustrating performance issue that many players encounter with RT on
- Solid community trust with 625 endorsements and over 26k downloads
- Simple, focused fix—no bloat, just solves the VRAM leak problem
⚠️ Cons
- Description is incomplete—cuts off mid-sentence, leaving installation and usage details unclear
- No explicit compatibility notes for game versions or other mods, so you might need to test it yourself
- Only addresses the VRAM leak symptom; if your GPU is just underpowered, this won't boost FPS
For Cyberpunk 2077 players who run with ray tracing and notice performance degradation after fast travel or long sessions, especially if you've seen GPU bus usage spike. If you're hitting VRAM limits and suspect a memory leak, this is a must-try. Skip if you don't use RT or have plenty of VRAM headroom.
💡 Beginner Tips
- Make sure your GPU drivers are up to date before installing, as driver-level VRAM management can affect the leak.
- If you use other performance mods, install this one first and test without them to see the baseline improvement.
- Monitor your GPU bus usage with a tool like MSI Afterburner to confirm the fix is working.
📊 Mod Details
- Game
- Witcher 3 Mods
- Author
- R4zen_Hose_Tony
- Version
- 1.0
- Downloads
- 26,625
- Endorsements
- 625
- Category
- Performance
- Created
- 3/28/2023
- Updated
- 4/18/2023
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