VRAM Shield

VRAM Shield is a lightweight, portable Windows utility designed to manage memory thermal loads on high-performance gaming and AI laptops. The Problem: During sustained workloads like local AI inference (Stable Diffusion, llama.cpp, Ollama) or high-resolution gaming, laptop heatsinks quickly saturate. While the GPU core remains cool (tied to system fan curves), the GDDR6/GDDR6X/GDDR7 memory junction silently spikes to 105°C+. This triggers severe emergency firmware throttling, dropping performance by up to 60-70% to prevent thermal degradation. Standard tuning tools like MSI Afterburner only target the GPU core and cannot control localized memory hotspots. The Solution: VRAM Shield monitors memory junction temperatures via low-level hardware telemetry APIs and implements active, software-defined duty-cycling: * Pulse Throttling (Free): Introduces millisecond-level pauses in heavy GPU processes via Windows NT APIs, giving the heatsink breathing room to shed localized heat. * Smart Throttling (PRO): A dynamic, mathematical PID-controller model that automatically scales compute stream pauses in real-time based on actual thermal trends to maintain fluid performance. Key Features: * Zero-Installer Portable Executable: Completely self-contained, lightweight (133MB), and leaves no registry clutter. * Verified Safe: Integrated with the official Microsoft WinGet repository (winget install 53Software.VRAMShield). * Active Telemetry: Real-time logging of GPU core and memory junction temperatures. * Commercial License: Transparent pricing, lifetime license, no hidden subscriptions. Maintain consistent performance, ensure hardware thermal safety, and get the most out of your RTX mobile workstation without worrying about silent throttling.