Summary
Validate Support for CXL and PCIe* 5.0 is available on Intel® Xeon® Scalable Processors.
Description
- Unable to determine if Intel® Xeon® supports Compute Express Link (CXL) and PCIe* 5.0.
- Need to build a heterogeneous memory system which needs CPI/CXL features to maintain cache coherence and fast virtual-to-physical address translation via TLB instead of software translation.
Resolution
Support for CXL and PCIe* 5.0 is available in the following Processors:
| Generation | CXL | PCIe* 5.0 |
| 1st Generation Intel® Xeon® Scalable Processors | Not Supported | Not Supported |
| 2nd Generation Intel® Xeon® Scalable Processors | Not Supported | Not Supported |
| 3rd Generation Intel® Xeon® Scalable Processors | Not Supported | Not Supported |
| 4th Generation Intel® Xeon® Scalable Processors | Supported | Supported |
| 5th Generation Intel® Xeon® Scalable Processors | Supported | Supported |
| Intel® Xeon® 6 | Supported | Supported |
Additional information
For more details, please visit:
5th Gen Intel Xeon Processors are Built with AI Acceleration in...
4th Gen Intel® Xeon® Scalable Processors (intel.com)
Intel® FPGA Compute Express Link (CXL) IP
Intel: CXL Memory Modes on Future Generation Intel Xeon CPUs - Compute Express Link
Operating System Compatibility and Intel® Xeon® Scalable Processors