Tejas and Jayhawk
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Tejas was a code name for Intel's microprocessor which was to be a successor to the latest Pentium 4 with Prescott core. Jayhawk was a code name for its Xeon counterpart. The cancellation of the processors in May 2004 underscored Intel's historical transition of its focus on single-core processors to dual-core processors.
In early 2003, Intel showed the design of Tejas and a plan to release it sometime in 2004, but put it off to 2005 later. Intel, however, announced it canceled the development on May 7, 2004. Analysts attribute the delay and eventual cancellation to the heat problem due to the prodigious power consumption of the core, as that was the case in development of Prescott and its mediocre performance increase over Northwood. This cancellation reflected Intel's intention to focus on dual-core chips for the Itanium platform. With respect to desktop processors, Intel's development efforts shifted to the Pentium M micro-architecture (itself a derivative of the Pentium III micro-architecture) used in the Centrino notebook platform, which offered a processing power to power consumption ratio considerably higher than that offered by Prescott and other NetBurst based designs. The outcome of these development efforts was the Intel Core processor line, and later the Intel Core 2 line, providing and building on the benefits of Pentium M and offering Intel's first native dual core products for the desktop and laptop.
This transition marks the end of the NetBurst line of CPU development from Intel that started back with the original Pentium 4.
