Introduction Grand Theft Auto 4 (GTA IV) is well known for its ill optimization on the PC, which results in a whole host of graphics-related problems such as resource usage errors and missing texture issues. Although it came out back in 2008, the game still proves difficult for even the latest high-end hardware to play because of inherent flaws in its PC port . This in-depth guide will tell you why these errors occur and offer step-by-step solutions so that you can fix them. Understanding the Core Issues DirectX 9 Limitation The main reason behind GTA 4's graphics issues is based on its use of DirectX 9, an older graphics API that doesn't play well with multi-core CPUs and new GPUs . This limitation results in even high-end modern hardware struggling to maximize its capabilities, causing bottlenecks and poor performance. VRAM Allocation Problems One of the biggest problems is that GTA 4 can only utilize a maximum of about 2GB of VRAM, no matter how much your graphics ...