Xeon Phi
Xeon Phi Logo since 2015
Developer	Intel
Manufacturer	Intel
Type	Microprocessors
Introduction	2012 (announced) 2012 (launch)
Architecture	Many-core x86 microprocessors
ISA	x86-64
µarch	Knights Ferry, Knights Corner, Knights Landing, Knights Mill
Word size	64 bit 8 octets 16 nibbles
Process	22 nm 0.022 μm 2.2e-5 mm , 14 nm 0.014 μm 1.4e-5 mm
Technology	CMOS

Xeon Phi is a family of x86 many-core microprocessors designed by Intel since 2012 for supercomputers and workstations primarily aimed at scientists and researchers. Those processors are based on Intel's MIC Architecture. Xeon Phi differs from other GPGPU and many-core processors in its unique quality that it retains almost full compatibility with existing x86 software and libraries allowing those processors to tap into the extensive x86 ecosystem.

Overview

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Member

Knights Ferry

Main article: Knights Ferry

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Knights Corner

Main article: Knights Corner

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Knights Landing

Main article: Knights Landing

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Knights Mill

Main article: Knights Mill

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Knights Hill

Main article: Knights Hill

Announces on November 18 2014, Knights Hill was planned to be fabricated on their 10 nm process. Severe delays with their 10 nm process has caused them to push the architecture all the way back to 2018. In late 2017 Intel finally announce that they had cancelled the architecture altogether in favor of an entirely new microarchitecture aimed at exascale computing.