Almost all software packages are packed modernized and upgraded, such as the Linux kernel upgraded from 2.6.18 to Linux 2.6.32, in addition to include a version of GCC 4.4.4 and Glibc 2.12. RHEL 6 supports a number of processor architectures that are commonly used in corporate environments such as the i386, x86_64, s390x and ppc64. To save energy, Red Hat introduced a feature Tickless Kernel and has invested many resources to develop Powermanagement mendukungn Opteron 6000 and 4000 processors made by AMD.

Among the collection of software for servers that are bundled with RHEL 6 is the version of Apache-HTTP-Server 2.2.15, PostgreSQL 8.4 and MySQL 5.1