Highlights
Scalable, Directory Based Cache Coherence Protocol
Write-back cache for Remote Data: 2-4-8-(16)GB options, standard SDIMMs
ECC protected with background scrubbing of soft errors
16 coherent + 16 non-coherent outstanding memory transactions
Support for single-image or multi-image OS partitions
3-way on-chip distributed switching for 1D, 2D or 3D Torus topologies
30GB/s switching capacity per node
HTX connected - 6.4GB/s
<20W power dissipation
For detailed review click their webpages.
The PDF manual is here.