The T2 is a commodity derivative of the UltraSPARC series of microprocessors, targeting Internet workloads in computers, storage and networking devices.

[3] Sun released the UltraSPARC T2 Plus processor with the following changes: UltraSPARC T2 Plus processors can be found in the following products from Sun and Fujitsu Computer Systems: Two-way SMP servers: Four-way SMP server: The High Performance Computing Virtual Laboratory in Canada built a compute cluster using 78 Sun SPARC Enterprise T5140 servers.

With two 1.2 GHz T2 Plus chips in each T5140 server, the cluster has close to 10,000 compute threads, making it ideal for high-throughput workloads.

The UltraSPARC T2 offers a variety of performance improvements over the former UltraSPARC T1 processor Leveraging the massive amount of thread-level parallelism (TLP) available on the CoolThreads platform can require different application development techniques than for traditional server platforms.

[9] Sun also documented its experience in moving its own online store onto a T2000 server cluster,[10] and have published two articles on web consolidation on CoolThreads using Solaris Containers.

[15] Sun announced the T2's release on 7 August 2007, billing it as "the world's fastest microprocessor".