Sun Microsystems is today officially debuting its two new ‘massively threaded’ servers based on the UltraSPARC T2+ processor. The major advancement in Sun’s new CMT SPARC Enterprise T5140 and T5240 servers is that both systems support two processors – whereas previous offerings topped out at a single socket. Each processor – part of the ‘Niagara’ line – is equipped with up to eight cores and 64 threads, which is par with the chip’s predecessors. But with a fresh ability to double-up, a single machine is able to process 128 instructional threads at the same time. Sun heralds the chip consolidation as leading to better performance per watt and space efficiency.