OCCT Teams Up with Intel: OCCT Tuning Coming to Linux and Windows

OCCT (OverClock Checking Tool) has long been the gold standard for stability testing, but today it evolves from a diagnostic powerhouse into a full-fledged tuning suite. In a major collaboration with Intel, OCCT is introducing a dedicated Processor Tuning Tool integrated directly into its interface.

For the first time, the “XTU knobs” enthusiasts love are being implemented natively within OCCT. Unlike other tools that rely on external SDKs, this is a 100% custom implementation from the GUI down to the driver. Perhaps most groundbreaking is the platform support: this brings XTU-style tuning to Linux for the very first time, alongside Windows.

Granite Rapids and Beyond

The initial launch focuses on Intel Granite Rapids CPUs. While the technical foundation for older architectures like Raptor Lake or Arrow Lake is similar, the official roadmap for consumer-class desktop CPUs remains under wraps for now to align with Intel’s marketing cycles.

“We want to expand the number of CPUs in the future.” says OCCT developer Adrien “iench” Mercier when asked about support. While Adrien expressed caution regarding older architectures, the goal is clear: expanding coverage to more CPUs in the coming months.

Take note that this is just for the tuning side for Intel Granite Rapids (still unreleased) which is announced alongside this update, OCCT’s latest version will work as normal regardless of your CPUs.

Key Features of OCCT Tuning

• Live Adjustments: Fine-tune clock speeds and voltages on a per-core basis while a stability test is actively running.
• Total Integration: Access core ratios, V/F overrides, turbo limits, and AVX offsets within the familiar OCCT environment.
• Custom Infrastructure: Built on OCCT’s own implementation, moving away from legacy drivers like WinRing0 to ensure modern compatibility and security.
• Linux Native: Full support on Linux, requiring root access for most settings to provide a single, continuous workflow.

OCCT by the Numbers

This update follows a massive year for the testing software, which has been “defining stability” for 23 years. In 2025 alone, OCCT saw over 12 million downloads, contributing to a lifetime total of over 82 million.