According to benchmarks ran by SamMobile, the S4 with Exynos 5 Octa performs considerable well as compared to the S4 that is powered by the Snapdragon 600. Looking at the benchmarks, the 3G-only global model that packs Samsung’s Octa core processor clocked at 1.6GHz raked in a score of 28,018 in the popular AnTuTu benchmark test as compared to 23,607 scored by the 1.9GHz quad-core U.S. and European model.
Even though the 4G LTE Asian variant of the S4, which packs the Octa-core processor clocked at 1.8GHz, wasn’t tested SamMobile believes that it would have easily scored somewhere over 30,000 points. In that case the S4 would have been the fastest smartphone on the planet.
Samsung announced that there would be three different variants of the Galaxy S4 and it will vary on their processing units: Exynos 5 Octa 1.6 GHz for GT I9500, Exynos 5 Octa 1.8 GHz with LTE for SHV E300S and Snapdragon 600 1.9GHz with LTE for GT 19505.
After the release of the flagship phone to the Korean Market, Samsung improved its clock speed from 1.6GHz to 1.8GHz.