III is the second-generation 64-bit processor
put out by Sun
. It is supposed to be 5 times faster than the UltraSparc II, and it can automatically scale
to systems with hundreds of processors. The CPU
is completely backwards-compatable with software
written for earlier versions.
The UltraSparc III employs 29 million transistors, an 8Mb level-2 cache, and allows scalable shared memory and mixed-speed CPUs in a single system.