[owen11]

Cayley can store 130 million quads (2 nodes + connecting edge) on 20 GB harddrive. Join #cayley on freenode and https://groups.google.com/forum/#!forum/cayley-users and be part of our community!

[jerven]

Virtuoso, does 2 billion in 50GB. Just so you know. And hard graphs like the complete UniProt data of 20 billion+ in 800GB.