Xeon

Xeon (/ˈziːɒn/ ZEE-on) is a brand of x86 microprocessors designed, manufactured, and marketed by Intel, targeted at the non-consumer workstation, server, and embedded system markets. It was introduced in June 1998. Xeon processors are based on the same architecture as regular desktop-grade CPUs, but have advanced features such as support for ECC memory, higher core counts, more PCI Express lanes, support for larger amounts of RAM, larger cache memory and extra provision for enterprise-grade reliability, availability and serviceability (RAS) features responsible for handling hardware exceptions through the Machine Check Architecture. They are often capable of safely continuing execution where a normal processor cannot due to these extra RAS features, depending on the type and severity of the machine-check exception (MCE). Some also support multi-socket systems with two, four, or eight sockets through use of the Ultra Path Interconnect (UPI) bus.

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Xeon

Logo since 2020
General information
Launched	June 1998; 24 years ago (June 1998)
Marketed by	Intel
Designed by	Intel
Common manufacturer(s)	Intel
Performance
Max. CPU clock rate	400 MHz to 4.8 GHz
FSB speeds	0.1 GHz to 8.0 GT/s
Cache
L4 cache	Up to 64 GB HBM2e (Sapphire Rapids)[1]
Architecture and classification
Architecture	x86-64
Microarchitecture	P6 NetBurst Core Nehalem Westmere Sandy Bridge Ivy Bridge Haswell Broadwell Skylake Sunny Cove Cypress Cove Golden Cove
Instruction set	IA-32, x86-64
Physical specifications
Cores	Up to 56
Socket(s)	LGA 775 LGA 771 LGA 1156 LGA 1366 LGA 1155 LGA 2011 LGA 1150 LGA 2011-3 LGA 1151 LGA 1151v2 LGA 1200 LGA 2066 LGA 3647 LGA 4189 LGA 4677
Products, models, variants
Brand name(s)	Xeon w3[2] Xeon w5[2] Xeon w7[2] Xeon w9[2] Xeon Bronze Xeon Silver Xeon Gold Xeon Platinum Xeon Max[3]
History
Predecessor	Pentium Pro