List of Intel Xeon processors (Ice Lake-based) explained

"Ice Lake-SP" (10 nm) Scalable Performance

• Support for up to 16 DIMMs of DDR4 memory per CPU socket, maximum 4 TB.
• Supports up to two sockets^[1]
• PCI Express 4.0 lanes: 64
• -M: Media processing specialized
• -N: Network & NFV specialized
• -P: IaaS cloud specialized
• -Q: Liquid cooled
• -S: 512 GB SGX enclave per CPU
• -T: High thermal-case and extended reliability
• -U: Uniprocessor
• -V: SaaS cloud specialized
• -Y: Supports Intel 2.0

Xeon Platinum (dual processor)

"Ice Lake-W" (10 nm)

Xeon W-3300 (uniprocessor)

• PCI Express lanes: 64
• Supports up to 16 DIMMs of DDR4 memory, maximum 4 TB.^[2]

"Ice Lake-D" (10 nm)

Xeon D-2800 (uniprocessor)

Notes and References

1. Web site: Intel 3rd Gen Xeon Scalable (Ice Lake SP) Review: Generationally Big, Competitively Small. Anandtech. Andrei. Frumusanu. 6 April 2021. 7 April 2021.
2. Web site: Intel Launches Xeon W-3300: Ice Lake for Workstations, up to 38 Cores. Dr Ian. Cutress. www.anandtech.com. 29 July 2021.