Credit: GSMARENA
Samsung's Galaxy S4 is available with 2 different CPUs:
• GT-I9505 with quad-core Snapdragon 600 chipset; &
• GT-I9500 with Samsung's own Exynos 5 Octa chipset.
As has been reported previously on these pages, the Exynos 5 Octa has 8 cores in 2 sets of 4, one high processing power & battery consumption, the other low power & battery. Only one set can be active at a time. Idea is that, by selecting the best core set for each task, both processing speed & run time can be optimized.
In light of the above, why use the more conventional Snapdragon processor at all? You may have read that the Exynos 5 Octa is incompatible with LTE (4G), so the Snapdragon would be fitted to Galaxy S4s in North America.
In the linked article, GSMARENA claims that:
• Snapdragon processors are being fitted in most markets around the world;
• both processors are compatible with LTE;
• production difficulties with Exynos 5 Octa processors is limiting their use;
• difference in benchmarked performance between the two processors is small;
• better battery performance makes the GT-I9505 model (Snapdragon) the better option; &
• talk time is much reduced in the GT-I9500 model (Exynos 5 Octa processor).
http://www.gsmarena.com/samsung_galaxy_s4_i9500_vs_i9505-review-930.php / Android smartphone smart phone cell mobile market high-end high end manufacturer flagship buyers versions price priced prices handsets quad core international model exclusive LTE support LTE connectivity manufacturing issues more widely available offering fastest fast TouchWiz Cortex-A15 Cortex-A7 core CPU processor /
