How to install DXVK For GTA 4 PC

If you are tired of the “slide-show” experience, this guide will walk you through the DXVK installation and additional optimizations to make GTA 4 buttery smooth on your low-end machine.

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GTA 4 Lag Fix: The Ultimate 2025 Guide

Table of Contents

Step 1: GTA 4 DXVK Install Guide

DXVK works by replacing the game’s rendering engine. Follow these steps carefully:

Download DXVK: Go to the Official DXVK GitHub Releases. For GTA 4, version 1.9.4 is often cited as the most stable, though the latest version works for most.
Extract the Files: Open the downloaded .tar.gz file (use 7-Zip). Navigate to the x32 folder.
- Note: Even if your OS is 64-bit, GTA 4 is a 32-bit application.
Copy DLLs: Copy d3d9.dll and dxgi.dll into your GTA IV main directory (where GTAIV.exe is located).
Configuration (Optional but Recommended): Create a new text file in the game folder named dxvk.conf. Paste the following lines to reduce latency:d3d9.maxFrameLatency = 1dxgi.maxFrameLatency = 1

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Step 2: Commandline Optimization

GTA 4 often fails to recognize modern VRAM. Creating a commandline.txt file in your root folder is essential. Paste these commands.

-nomemrestrict (Removes memory limits)

-norestrictions (Unlocks all graphical settings)

-availablevidmem 2048 (Replace 2048 with your actual VRAM in MB)

-noprecache (Can help reduce stuttering during fast driving)

The Fullscreen & Aspect Ratio Fix

A common side effect of DXVK is that the game might default to an incorrect resolution or show black bars. To fix this:

Create a new text file in your game folder and name it dxvk.conf.
Open it and add the necessary configuration lines to force your monitor’s native aspect ratio.
Alternatively, use a pre-configured dxvk.conf provided in community optimization packs to ensure the game stays in fullscreen mode without stretching.

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Performance Comparison: DX9 vs. DXVK

Feature	Original (DirectX 9)	Optimized (DXVK/Vulkan)
Average FPS	25–40 FPS (Inconsistent)	50–60+ FPS (Stable)
Stuttering	High (Especially when driving)	Minimal to None
CPU Usage	High (Poor thread utilization)	Balanced
Loading Times	Standard	Slightly Faster

Advantages & Disadvantages of DXVK

Advantages

Massive FPS Boost: Especially on AMD GPUs and Intel Integrated graphics which struggle with old DX9 drivers.
Stable Frametimes: Eliminates the “micro-stutter” that occurs when moving between city blocks.
Windowed Borderless Support: Makes alt-tabbing much safer.

Disadvantages

Initial Stutter: You may experience minor lag for the first 5-10 minutes of gameplay as the “Shader Cache” builds. This is a one-time process.
Compatibility: A very small percentage of old GPUs do not support Vulkan.

Reviews & Community Ratings

Performance Rating: ⭐⭐⭐⭐⭐ (5/5) – “The single best mod for GTA 4. It went from unplayable to 60 FPS on my laptop.”
Ease of Install: ⭐⭐⭐⭐ (4/5) – Requires manual file moving, but very straightforward.
Stability: ⭐⭐⭐⭐ (4/5) – Occasionally causes issues with certain ENB lighting mods.

FAQ: Frequently Asked Questions

Q: Does this work for the Complete Edition on Steam?

A: Yes, DXVK is fully compatible with the Steam Complete Edition and the Rockstar Launcher version.

Q: Why is my game still lagging for the first few minutes?

A: That is the Vulkan shader compilation. Simply drive around for a bit, and once the shaders are cached, the lag will disappear permanently.

Q: Can I use this with FusionFix?