Lynnfield (microprocessor)

  • Intel
CPUID code106ExProduct code80605PerformanceMax. CPU clock rate2.40 GHz to 3.73 GHzDMI speeds2 GT/sCacheL1 cache64 KB per core (32 KB data + 32 KB instructions)L2 cache1 MB (256 KB per core)L3 cache8 MBArchitecture and classificationApplicationDesktopTechnology node45 nm (774 million transistors)MicroarchitectureNehalemInstruction setx86, x86-64, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2Physical specificationsTransistors
  • 774 million
Cores
  • 4
Memory (RAM)
  • Up to 32 GB
  • Up to DDR3-1333
Socket(s)Products, models, variantsBrand name(s)
HistoryPredecessor(s)Wolfdale
YorkfieldSuccessor(s)Sandy BridgeSupport statusUnsupported

Lynnfield is the code name for a quad-core processor from Intel released in September 2009.[1] It was sold in varying configurations as Core i5-7xx, Core i7-8xx or Xeon X34xx. Lynnfield uses the Nehalem microarchitecture and replaces the earlier Penryn based Wolfdale and Yorkfield processors, 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 processor socket as opposed to the LGA 1366 socket used by Bloomfield and Gainestown processors. LGA 1156 processors include Direct Media Interface and PCI Express 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. The dual-core version was going to be Havendale, but it was cancelled in favor of Clarkdale.

Brand names

Brand name Model (list) Market Clock frequency range HT ECC RAM/Max. RAM
Core i5 i5-7xx Performance

desktop

2.67–2.80 GHz No No/16 (32 unofficially) GB
i5-7xxS 2.40 GHz
Core i7 i7-8xx 2.80–3.07 GHz Yes
i7-875K 2.93 GHz (unlocked)
i7-8xxS 2.53–2.67 GHz
Xeon X34xx UP server 1.86–3.07 GHz some Yes/32 GB

See also

External links

  • Intel's Lynnfield Processor & its New Power Control Unit

References

  1. ^ Anand Lal Shimpi, "Intel's Core i7 870 & i5 750, Lynnfield: Harder, Better, Faster Stronger", anandtech.com
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