Sun's Vic Falls: Two is better than one
Niagara 2 (formally the UltraSparc T2) was a big step forward for Sun Microsystems' chip multithreading (CMT) efforts. It's not that there was anything really wrong with its Niagara 1 predecessor, but 90-nanometer process technology imposed some fairly severe restrictions on what could be crammed into each of the eight cores. As a result, Niagara 1 was well-suited for a relatively narrow range of network-facing workloads. Niagara 2, by contrast, was able to leverage 65nm process technology to spread its wings considerably--which it did by significantly beefing up the threading, floating point, and other capabilities of the individual cores, … Read more