Applicable to x86_64/arch64/ppc64le and other architectures

Version difference:
DVD  It is generally recommended to use DVD/U disk because it contains the most available software packages in the release and does not require network links during installation;
NET It must be connected to the Internet before use. Download and install the system and all software packages from the online software source;
Current Latest version;
Leap Is a regular release. This means that it will be released once a year, and security and stability updates are a priority in each life cycle. No major changes are expected before the next annual release. Leap and SUSE Linux Enterprise share the same basic system, so there will be no major architectural changes in a few years, consistent with each new major version of SUSE Linux Enterprise (such as 12, 13, and so on).
Note: The above versions can be used on desktop computers, laptops, servers or the cloud.

framework explain:
x86_64  X86-64 is a 64 bit extension of x86 architecture, backward compatible with 16 bit and 32-bit x86 architecture.