# Nvidia Driver 621.01 Adds Advanced Shader Support

October 24, 2026 at 10:10 AM

> Nvidia's new WHQL driver introduces cloud-based shader compilation for Call of Duty and Gears of War to reduce RAM usage and wait times.

**Nvidia** has released the GeForce 621.01 WHQL driver, introducing support for **Microsoft**'s Advanced Shader Delivery technology. This update specifically targets **Call of Duty: Modern Warfare 4** and **Gears of War: E-Day** for RTX 20-series and 50-series GPU users.

Advanced Shader Delivery offloads CPU-heavy shader compilation to the cloud, distributing precompiled databases during the game download via the Xbox PC app. This replaces local compilation, which can take up to 30 minutes for modern games' many shaders.

Journalist **Sebastian Castellanos** reports that the driver significantly reduces system RAM usage, noting a 7-8 GB drop in Gears of War: E-Day. The feature is available for supported titles purchased through the Microsoft Store or accessed via the Xbox app.


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