Since your Note 3 and Galaxy S4 are sporting the current thermal envelopes, calculated to run with only four cores at once, the fix won't apply to them, at least officially, unless you don't mind the risk of frying your handset....
Source: http://www.phonearena.com/news/Note-3-and-Galaxy-S4-with-Exynos-5-Octa-wont-be-getting-the-full-eight-core-performance-patch-says-Samsung_id47977
Source: http://www.phonearena.com/news/Note-3-and-Galaxy-S4-with-Exynos-5-Octa-wont-be-getting-the-full-eight-core-performance-patch-says-Samsung_id47977