siliconbits writes: We've received an email from ARM that confirms that the Cortex-A15 will be at least 40 per cent faster than the A9 when it comes to raw performance (Dhrystone MIPS), all things equal; same number of core, same speed. According to our contact at ARM, the A15 has a "published but not formal number" of 3.5 DMIPS/MHz but told us that the performance difference across generation is "dependent on many factors" before adding that "Other benchmarks can show less improvement on specific devices, others a greater improvement". ARM has yet to officially publish the Cortex-A15 figures on its website. The Cortex-A8 reached 2.0 DMIPS/MHz while the Cortex-A9 reached 2.5 DMIPS/MHz, a 25 per cent improvement. Given that startups like Caldexa are already developing quad-core iteration of the Cortex-A9, one can easily envision that a 4-core Cortex-A15 will shatter the 40K DMIPS barrier, putting it within touching distance of the AMD Phenom II X4 940 Black Edition which reached almost 43K DMIPS running at 3GHz.
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