ArsTechnical has posted some more details on Sun’s forthcoming Niagara2 processor. Rumors point to a release in the April-June timeframe.

“Niagara2 sports 8 SPARC cores, all of which are connected to 4MB of shared L2 cache by a large crossbar switch. Each core is capable of eight-way simultaneous multithreading, giving each Niagra2 chip a total of 64 simultaneous threads of execution. All of this thread-processing power enables Niagra2 to double its predecessor’s throughput and performance/watt.”

More details are available at the link.