was able to run SunSpider v0.9.1 on an iPhone 5 review sample on Wednesday and watched as the dual-core A6 chip chewed through the benchmark in 914.7 milliseconds, outpacing the second place Lava XOLO X900ís time of 1279.4 milliseconds. The Lava XOLO runs a single-core Intel Atom Z2460 Penwell SoC built on the chip makerís Medfield platform.
As noted by the publication, SunSpider is slowly becoming outdated as a smartphone benchmark; however it highlights issues pertaining to ARMís Cortex A9 memory interface. According to Anand Shimpi ďIntel originally hinted issues in the A9ís memory interface as being why Atom was able to so easily outperform other ARM based SoCs in SunSpider.Ē
It was previously thought that Apple made dramatic improvements to the standard ARM coreís memory interface as previous Geekbench
data suggested a drastic improvement from previous Cortex A9 chips. Although it hasnít yet been confirmed, the A6 chip is reportedly Appleís first attempt at designing an ARM core in-house. Based on the results, it seems like they have done a pretty good job but weíll see more results when more test results are released.