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The Intel QuickPath Interconnect (QPI) [1] [2] is a scalable processor interconnect developed by Intel which replaced the front-side bus (FSB) in Xeon, Itanium, and certain desktop platforms starting in 2008. It increased the scalability and available bandwidth. Prior to the name's announcement, Intel referred to it as Common System Interface ...
Nehalem / n ə ˈ h eɪ l əm / [1] is the codename for Intel's 45 nm microarchitecture released in November 2008. [2] It was used in the first generation of the Intel Core i5 and i7 processors, and succeeds the older Core microarchitecture used on Core 2 processors . [ 3 ]
Westmere (formerly Nehalem-C) is the code name given to the 32 nm die shrink of Nehalem. While sharing the same CPU sockets , Westmere included Intel HD Graphics , while Nehalem did not. The first Westmere -based processors were launched on January 7, 2010, by Intel Corporation.
The following is a partial list of Intel CPU microarchitectures. The list is incomplete, additional details can be found in Intel's tick–tock model, process–architecture–optimization model and Template:Intel processor roadmap.
Based on Nehalem microarchitecture; All models support: MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, Demand-Based Switching (Intel's Server EIST), Intel 64, XD bit (an NX bit implementation), Intel VT-x, Intel EPT, Intel VT-d, Intel VT-c, [6] Intel x8 SDDC [2] [7]
The Intel X58 (codenamed Tylersburg) is an Intel chip designed to connect Intel processors with Intel QuickPath Interconnect (QPI) interface to peripheral devices. Supported processors implement the Nehalem microarchitecture and therefore have an integrated memory controller (IMC), so the X58 does not have a memory interface.
The Core microarchitecture is Intel's final mainstream processor line to use FSB, with all later Intel processors based on Nehalem and later Intel microarchitectures featuring an integrated memory controller and a QPI or DMI bus for communication with the rest of the system. Improvements relative to the Intel Core processors were:
The Intel Ultra Path Interconnect (UPI) [1] [2] is a scalable processor interconnect developed by Intel which replaced the Intel QuickPath Interconnect (QPI) in Xeon Skylake-SP platforms starting in 2017.