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

"Cascade Lake-SP" (14 nm) Scalable Performance

• Support for up to 12 DIMMs of DDR4 memory per CPU socket
• Xeon Platinum supports up to eight sockets; Xeon Gold supports up to four sockets; Xeon Silver and Bronze support up to two sockets
• No suffix letter: up to 1.0TB DDR4 per socket
• -L: Large DDR memory tier support (up to 4.5TB)
• -M: Medium DDR memory tier support (up to 2.0TB)
• -N: Network & NFV specialized
• -R: Refresh (higher performance)
• -S: Search value specialized
• -T: High thermal-case and extended reliability
• -U: Uniprocessor
• -V: VM density value specialized
• -Y: Speed select

Xeon Platinum (octa processor)

"Cascade Lake-AP" (14 nm) Advanced Performance

• Support up to two sockets
• 2 dies per socket

Xeon Platinum (dual processor)

"Cascade Lake-W" (14 nm)

• All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AVX, AVX2, AVX-512, FMA3, MPX, Enhanced Intel SpeedStep Technology (EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x, Intel VT-d, Turbo Boost, Hyper-threading, AES-NI, Intel TSX-NI, Smart Cache, DL Boost.
• PCI Express lanes: 48
• Supports up to 8 DIMMs of DDR4 memory, maximum 1 TB.^[1]

Xeon W-32xx (uniprocessor)

• PCI Express lanes: 64
• Supports up to 12 DIMMs of DDR4 memory, maximum 1 TB.
• -M: Medium DDR memory tier support (up to 2 TB)

Notes and References

1. Web site: Cutress . Dr Ian . Intel Xeon W-2200 Family: Cascade Lake-X with ECC and 1TB Support . www.anandtech.com.