By Tony Smith 18th March 2008
Intel's 45nm 'Nehalem' processor design will incorporate the second generation of the chip maker's SSE 4 technology. For now, the company is calling the post-'Penryn' Streaming SIMD Extensions instruction set SSE 4.2. Nehalem's implementation of SSE 4 essentially matches that of Penryn. The key additions centre on the Application-Targeted Accelerators (ATAs) Intel introduced as part of SSE 4. Penryn got two of these, Nehalem will get seven more. Nehalem's ATAs centre on text and string processing, Intel said yesterday. The need to accelerate text handling may sound rather unnecessary in this era of pervasive multimedia and intensive 3D graphics apps, but Intel claims the ATAs will benefit a range of important tasks, from virus signature scanning to parsing XML files. Its pitch is that these are everyday routines, and the faster Nehalem can run them not only the quicker the tasks will be completed but the sooner it can close down on-die components to conserve energy.
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