standardThe "standard" version of Funtoo Linux
pure64A 64-bit build that drops multilib (32-bit compatibility) support. Can be ideal for server systems.
hardenedIncludes PIE/SSP toolchain for enhanced security. PIE does require the use of PaX in the kernel, while SSP works with any kernel, and provides enhanced security in user-space to avoid stack-based exploits. For expert users.