Intel Core (microarchitecture)

The Intel Core microarchitecture (provisionally referred to as Next Generation Micro-architecture, and developed as Merom) is a multi-core <a href="/facts/Central_processing_unit/Jxp1bqMV">processor</a> <a href="/facts/Microarchitecture/NFRd4NUL">microarchitecture</a> launched by <a href="/facts/Intel/SMF0gJJX">Intel</a> in mid-2006. It is a major evolution over the <a href="/facts/Yonah_(microprocessor)/tGcu7GJu">Yonah</a>, the previous iteration of the <a href="/facts/P6_(microarchitecture)/e8zEuP4E">P6 microarchitecture series</a> which started in 1995 with <a href="/facts/Pentium_Pro/mTAN64fo">Pentium Pro</a>. It also replaced the <a href="/facts/NetBurst/QIkVG48W">NetBurst</a> microarchitecture, which suffered from high power consumption and heat intensity due to an inefficient <a href="/facts/Pipeline_(computing)/xmHjrPMP">pipeline</a> designed for high <a href="/facts/Clock_rate/w055Woaj">clock rate</a>. In early 2004 the new version of NetBurst (Prescott) needed very high power to reach the clocks it needed for competitive performance, making it unsuitable for the shift to <a href="/facts/Multi-core_processor/ABNb65hQ">dual/multi-core</a> CPUs. On May 7, 2004 Intel confirmed the cancellation of the next NetBurst, <a href="/facts/Tejas_and_Jayhawk/4AUsAhJr">Tejas and Jayhawk</a>. Intel had been developing Merom, the 64-bit evolution of the <a href="/facts/Pentium_M/TwKtPHcm">Pentium M</a>, since 2001, and decided to expand it to all market segments, replacing NetBurst in desktop computers and servers. It inherited from Pentium M the choice of a short and efficient pipeline, delivering superior performance despite not reaching the high clocks of NetBurst.
The first processors that used this architecture were code-named '<a href="/facts/Merom_(microprocessor)/JoR4YQNS">Merom</a>', '<a href="/facts/Conroe_(microprocessor)/LFd3CrWg">Conroe</a>', and '<a href="/facts/Woodcrest_(microprocessor)/j1M8Hp6D">Woodcrest</a>'; Merom is for mobile computing, Conroe is for desktop systems, and Woodcrest is for servers and workstations. While architecturally identical, the three processor lines differ in the socket used, bus speed, and power consumption. The first Core-based desktop and mobile processors were branded <a href="/facts/Intel_Core_2/9gJP9o8p">Core 2</a>, later expanding to the lower-end <a href="/facts/Pentium_Dual-Core/bI3RQyVv">Pentium Dual-Core</a>, <a href="/facts/Pentium/czINY469">Pentium</a> and <a href="/facts/Celeron/kX00LpnM">Celeron</a> brands; while server and workstation Core-based processors were branded <a href="/facts/Xeon/j1M8Hp6D">Xeon</a>.

Intel Core (microarchitecture) open-in-new

Intel Core (microarchitecture)