# Intel ends SGX support after Diamond Rapids for TDX in cloud and AI

Digest AI · Hardware & Compute · published 2026-10-12T14:00:00Z

Canonical: https://digestai.news/story/intel-ends-sgx-support-after-diamond-rapids-for-tdx-in-cloud-and-ai

## Summary

Intel announced on Friday it will stop supporting Software Guard Extensions (SGX) after its upcoming Xeon Diamond Rapids processors. The company will focus on Trust Domain Extensions (TDX) instead, which isolates entire virtual machines rather than just application enclaves. TDX is seen as more scalable and easier to deploy for cloud providers and enterprise workloads, including agentic AI applications that require secure access to sensitive data across systems.

SGX will remain supported for existing platforms into the early 2030s, giving customers time to migrate. Intel plans to expand TDX with features like trusted I/O, post-quantum cryptography, and stronger attestation. TDX is already available on major cloud platforms, with software vendors like Red Hat and VMware adding support. Intel’s shift reflects broader industry trends toward VM-level isolation over application-specific enclaves.

## Key points

- Intel stops SGX support after Xeon Diamond Rapids, focusing on TDX for cloud and AI workloads
- TDX isolates full virtual machines, unlike SGX’s application-level enclaves, easing migration for cloud providers
- Intel will add trusted I/O, post-quantum crypto, and attestation to TDX, with no release dates stated

## Why it matters

TDX’s broader protection scope aligns with AI agents’ need for secure, cross-system access to sensitive data, while SGX’s decline may force legacy systems to modernize.

## Sources

1. [Intel to phase out SGX after Xeon Diamond Rapids in favor of TDX](https://tomshardware.com/pc-components/cpus/intel-to-phase-out-sgx-after-xeon-diamond-rapids-in-favor-of-tdx-confidential-computing-pivot-adds-trusted-i-o-and-post-quantum-crypto-for-agentic-ai) (Tom's Hardware, 2026-10-12)

## Cite

Digest AI, "Intel ends SGX support after Diamond Rapids for TDX in cloud and AI", 12 October 2026, https://digestai.news/story/intel-ends-sgx-support-after-diamond-rapids-for-tdx-in-cloud-and-ai

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