Realizing the ARM Cortex-A15: What does the road to 2.5GHz look like?
ARM and Cadence jointly presented a paper at today’s ARM Technology Conference discussing the steps needed to get the new ARM Cortex-A15 multi-processor core ready to run at or above 2.5GHz in a 32/28nm G/HP process technology and at or above 1.5GHz in a 32/28nm LP process technology. The two companies have been working on this project since March of this year. Obviously, the ARM Cortex-A15 is designed to be fast out of the gate. The core’s multiple-processor-core configurability suits it to a wide variety of mobile and tethered applications and end products with a wide range of performance needs. Getting high clock speed and good power performance at the same time is a good trick and Andrew Lambert from ARM and Rob Lipsey and Gopi Kudva from Cadence provided a significant number of details with respect to the tool flow that gets you multi-GHz speed with low power.
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