The UltraSparc 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.

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