The Intel Xeon is a brand of high-performance, desktop, x86 microprocessors designed by Intel intended for use in servers and high-end workstations environments. The Xeon brand, which first appeared in 1998 spans two micro-architecture generations including NetBurst microarchitecture and core.

Xeon CPUs share the same features as the Pentium 4 and Core 2 Duo/Quad desktop microprocessors. These CPUs can work in dual and quad systems and even in an 8-way setup. Likewise, the Xeon brand is usually designed with a much larger level 2 and level 3 cache.

P6-based Xeon

Main article: P6 microarchitecture

Intel Pentium II Xeon Drake core

Main article: Intel Pentium II Xeon Drake core

Intel Pentium III

Xeon Tanner core

Main article: Intel Pentium III Xeon Tanner

Xeon Cascades core

Main article: Intel Pentium III Xeon Cascades

Netburst-based Xeon

Main article: Netburst microarchitecture

Intel Xeon Foster

Main article: Intel Xeon Foster

Intel Xeon Foster MP

Main article: Intel Xeon Foster MP

Intel Xeon Prestonia

Main article: Intel Xeon Prestonia

Intel Xeon Gallatin

Main article: Intel Xeon Gallatin

Intel Xeon MP Gallatin

Main article: Intel Xeon MP Gallatin

Intel Xeon Nocona

Main article: Intel Xeon Nocona

Intel Xeon Irwindale

Main article: Intel Xeon Irwindale

Intel Xeon MP Cranford

Main article: Intel Xeon MP Cranford

Intel Xeon MP Potomac

Main article: Intel Xeon MP Potomac

Intel Xeon Paxville

Main article: Intel Xeon Paxville

Pentium M-based Xeon

Main article: Pentium M microarchitecture

Intel Xeon Sossaman

Main article: Intel Xeon Sossaman

Core-based Xeon

Main article: Core microarchitecture

Dual-Core

Intel Xeon 3000

Main article: Intel Xeon 3000

Intel Xeon 3100

Main article: Intel Xeon 3100

Intel Xeon 5100

Main article: Intel Xeon 5100

Intel Xeon 5200

Main article: Intel Xeon 5200

Intel Xeon 7200

Main article: Intel Xeon 7200

Quad-Core Xeon

Intel Xeon 3200

Main article: Intel Xeon 3200

Intel Xeon 3300

Main article: Intel Xeon 3300

Intel Xeon 5300

Main article: Intel Xeon 5300

Intel Xeon 5400

Main article: Intel Xeon 5400

Intel Xeon 7300

Main article: Intel Xeon 7300

Intel Xeon 7400

Main article: Intel Xeon 7400

Nehalem-based Xeon

Main article: Nehalem microarchitecture

Intel Xeon 3400

Main article: Intel Xeon 3400

Intel Xeon 3500

Main article: Intel Xeon 3500

Intel Xeon 5500

Main article: Intel Xeon 5500

Intel Xeon 5600

Main article: Intel Xeon 5600

Intel Xeon 6500

Main article: Intel Xeon 6500

Intel Xeon 7500

Main article: Intel Xeon 7500

Intel Xeon E7-4800

Main article: Intel Xeon E7-4800

Intel Xeon E7-8800

Main article: Intel Xeon E7-8800

Sandy-Bridge-based Xeon

Main article: Sandy-Bridge microarchitecture

Intel Xeon E3-1200

Main article: Intel Xeon E3-1200

Intel Xeon E5-1400

Main article: Intel Xeon E5-1400

Intel Xeon E5-1600

Main article: Intel Xeon E5-1600

Intel Xeon E5-2400

Main article: Intel Xeon E5-2400

Intel Xeon E5-2600

Main article: Intel Xeon E5-2600

Ivy Bridge-based Xeon

Main article: Ivy-Bridge microarchitecture

Intel Xeon E3-1200 v2

Main article: Intel Xeon E3-1200 v2

Intel Xeon E5-1400 v2

Main article: Intel Xeon E5-1400 v2

Intel Xeon E5-2400 v2

Main article: Intel Xeon E5-2400 v2

Intel Xeon E7-2800 v2

Main article: Intel Xeon E7-2800 v2

The Xeon E7-2800 v2 are the second generation E7-2800 CPUs which were upgraded to Ivy Bridge. They have been planned to be released in Q1, 2014. The v2 come with twice as many core (12 and 15 respectably) as well as twice as 25% more cache.

Intel Xeon E7-4800 v2

Main article: Intel Xeon E7-4800 v2

The second generation E7-4800 which are set to be released Q1, 2014 will have twice as many cores as the first generation and roughly 25% larger cache. The E7-4800 v2, which has 8-15 cores depending on model, supports 4 and 8 way systems.

Intel Xeon E7-8800 v2

Main article: Intel Xeon E7-8800 v2

The second generation E7-8800 which are set to be released Q1, 2014 will have twice as many cores as the first generation and roughly 25% larger cache.

Haswell-based Xeon

Main article: Haswell microarchitecture

Intel Xeon E3-1200 v3

Main article: Intel Xeon E3-1200 v3

Intel Xeon E5-1600 v2

Main article: Intel Xeon E5-1600 v2

Intel Xeon E5-2600 v2

Main article: Intel Xeon E5-2600 v2