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Nehalem µarch
General Info
Arch Type	CPU
Designer	Intel
Manufacturer	Intel
Introduction	August, 2008
Phase-out	March, 2010
Process	45 nm
Succession
Penryn Westmere

Nehalem was the microarchitecture for Intel's 45 nm process for desktops and servers as a successor to Penryn. Nehalem is named after the Nehalem River. Nehalem was replaced by the Westmere microarchitecture in 2010.

Nehalem wafer

Die Shot

Bloomfield

• 263 mm²
• 713,000,000 transistors
• 45 nm process
• 4 cores

Lynfield

• 296 mm²
• 774,000,000 transistors
• 45 nm process
• 4 cores

Nehalem-EX

• 648 mm²
• 2.300,000,000 transistors
• 45 nm process
• 8 cores