Lynnfield is the code name for a quad-core processor from

Intel Intel Corporation is an American multinational corporation and technology company headquartered in Santa Clara, California. It is the world's largest semiconductor chip manufacturer by revenue, and is one of the developers of the x86 seri ...

released in September 2009. It was sold in varying configurations as

Core i5 The following is a list of Intel Core i5 brand microprocessors. Introduced in 2009, the Core i5 line of microprocessors are intended to be used by mainstream users. Desktop processors Nehalem microarchitecture (1st generation) "Lynnf ...

-7xx,

Core i7 The following is a list of Intel Core i7 brand microprocessors. Introduced in 2008, the Core i7 line of microprocessors are intended to be used by high-end users. Desktop processors Nehalem microarchitecture (1st generation) "Bloomfield" ...

-8xx or

Xeon Xeon ( ) 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 arc ...

X34xx. Lynnfield uses the

Nehalem microarchitecture Nehalem is the codename for Intel's 45 nm microarchitecture released in November 2008. 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. The ...

and replaces the earlier Penryn based Yorkfield processor, using the same 45 nm process technology, but with a new memory and bus interface. The product code for Lynnfield is 80605, its CPUID value identifies it as family 6, model 30 (0106Ex). Lynnfield is related to the earlier Bloomfield and Gainestown microprocessors, which are used in server and high-end desktop systems. The main difference between the two is Lynnfield's use of the

LGA 1156 LGA 1156 (land grid array 1156), also known as Socket H or H1, is an Intel desktop CPU socket. Its incompatible successor is LGA 1155. The last processors supporting it ceased production in 2011. LGA 1156, along with LGA 1366, were designed t ...

processor socket as opposed to the

LGA 1366 LGA 1366 (land grid array 1366), also known as Socket B, is an Intel CPU socket. This socket supersedes Intel's LGA 775 (Socket T) in the high-end and performance desktop segments. It also replaces the server-oriented LGA 771 (Socket J) in the e ...

socket used by Bloomfield and Gainestown processors. LGA 1156 processors include

Direct Media Interface In computing, Direct Media Interface (DMI) is Intel's proprietary link between the northbridge and southbridge on a computer motherboard. It was first used between the 9xx chipsets and the ICH6, released in 2004. Previous Intel chipsets had us ...

and

PCI Express PCI Express (Peripheral Component Interconnect Express), officially abbreviated as PCIe or PCI-e, is a high-speed serial computer expansion bus standard, designed to replace the older PCI, PCI-X and AGP bus standards. It is the common ...

links, which Intel has previously connected to the processor with a dedicated northbridge chip, called the ''memory controller hub'' or ''I/O hub''. The Lynnfield series of processors does not include built-in Intel graphics. The ''mobile'' version of Lynnfield is Clarksfield.

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References