NVIDIA Giveth, NVIDIA Taketh Away | RIP PhysX 32-bit (GTX 580 vs. RTX 5080)

Introduction

This tutorial explores the implications of NVIDIA's decision to discontinue 32-bit CUDA support, affecting PhysX on the latest RTX 50 series graphics cards. We will compare the performance of older GPUs like the GTX 580 and GTX 980 against the RTX 5080 in classic games. Additionally, we will delve into the history of PhysX technology and its relevance in today’s gaming landscape.

Step 1: Understand the Impact of Removing 32-bit CUDA Support

• NVIDIA has phased out support for 32-bit CUDA in the RTX 50 series, which includes the RTX 5090, 5080, and 5070 Ti.
• This change particularly impacts older games that rely on PhysX technology.
• Understanding this shift is crucial for gamers who enjoy classic titles, as it may limit their performance and compatibility with newer hardware.

Step 2: Explore the History of PhysX

• PhysX technology was initially developed by Ageia and later acquired by NVIDIA.
• It allows for real-time physics simulations in games, enhancing realism.
• Over the years, PhysX has evolved, but the transition away from 32-bit support raises concerns about the future of legacy games.

Step 3: Set Up Benchmark Tests for Comparison

• Select classic games for benchmarking: Mafia II, Metro Last Light, Mirror's Edge, Borderlands 2, and Batman Arkham City.
• Use the following testing procedure:
  1. Install the games on systems with GTX 580, GTX 980, and RTX 5080.
  2. Ensure all drivers are up to date.
  3. Record performance metrics such as frame rates and GPU utilization for each title.

Step 4: Analyze Benchmark Results

• Review and compare performance data across different GPUs.
  • Mafia II: Analyze frame rates and gameplay smoothness.
  • Metro Last Light: Focus on visual fidelity and performance consistency.
  • Mirror's Edge: Evaluate how each card handles fast-paced action.
  • Borderlands 2: Consider how the GPU impacts the game's unique art style.
  • Batman Arkham City: Assess physics interactions during gameplay.

Step 5: Understand Accelerator GPU Utilization

• Investigate how the RTX 5080 utilizes its accelerator capabilities compared to older models.
• Note any differences in performance during physics-intensive scenes.
• Consider the implications for future gaming experiences reliant on physics calculations.

Conclusion

NVIDIA's removal of 32-bit CUDA support signals a significant shift in gaming technology, particularly affecting older titles using PhysX. By comparing the GTX 580, GTX 980, and RTX 5080, we gain insights into how this change impacts performance and compatibility. For gamers who cherish classic games, this analysis highlights the importance of understanding hardware capabilities and compatibility in the evolving gaming landscape. As technology continues to advance, staying informed will help you make better decisions about your gaming setup.