Stock Samsung Galaxy S III kernel is good. However, using tweaked and optimised custom kernel for Samsung Galaxy S3 is better. It improves overall performance and has lot of features that can’t be found on stock kernel. For example, root access, insecure adb, custom boot animation support, overclocking, undervolting voltage control, multiple tweaked CPU governors, GPU overclocking, I/O tweaks, automatic backup of EFS partition, NTFS USB driver support and other more… So here are the top best custom kernels for Samsung Galaxy S3 that you can try.