Intel has declared that it will no longer officially disclose its per-core Turbo frequencies, which could make motherboard tuning impossible: “[W]e’re no longer disclosing this level of detail as its proprietary to Intel. Intel only specifies processor frequencies for base and single-core Turbo in our processor marketing and technical collateral, such as ARK, and not the multi-core Turbo frequencies. We’re aligning communications to be consistent. All Turbo frequencies are opportunistic given their dependency on system configuration and workloads.”



This information can still be gathered via manual testing (assuming none of the issues above apply), and testing multiple motherboards would be the simplest way to make certain there are no issues affecting one specific model. Ultimately, Intel’s decision to restrict this information seems pointless. It makes it harder for end-users to determine whether their platforms are configured properly without actually preventing the specific information from being discovered. It’s a lose-lose for everyone, and it’s a policy we hope Intel reconsiders.

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Source: [H]ardOCP – Intel Will No Longer Provide Per-Core Turbo Frequencies