Overview

Executing on Sun's Throughput Computing strategy, the dual-thread UltraSPARC IV processor marks the first milestone in Sun's Chip Multithreading (CMT) roadmap. Sun's UltraSPARC IV processor provides the unique combination of real world application performance and exceptional product quality for mission-critical enterprise, High Performance Technical Computing (HPTC), and compute-intensive applications. It protects customers' investments through 100 percent application binary compatibility, and can provide an upgrade path for current UltraSPARC III processor-based systems. Further, the UltraSPARC IV processor and the Solaris Operating System platform supports a wide range of applications, and boasts enterprise-class reliability.

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UltraSPARC Family Brochure

Specifications

• Architecture :
  • Chip Multithreading (CMT) processor with two threads per processor
  • Based on two UltraSPARC III pipelines
  • 64-Bit SPARC architecture VIS Instruction Set
  • 66 million transistor count
  • 4-way superscalar
  • 14-stage nonstalling pipeline
• Clock Frequency : 1.05 - 1.35 GHz
• L1 Cache (per pipeline) :
  • 64 KB 4-way data
  • 32 KB 4-way instruction
  • 2 KB Write, 2 KB Prefetch
• L2 Cache :
  • 16 MB external (exclusive access to 8 MB per pipeline)
  • On-chip controller and address tags
• Scalability : Multiprocessing scalability with architecture support for over 1000 processors/system.
• Memory Controller : On-chip memory controller capable of addressing up to 16 GB of main memory at 2.4 GB/s.
• System : Deployed in:
  • Sun Fire V490 server
  • Sun Fire V890 server
  • Sun Fire E2900 server
  • Sun Fire E4900 server
  • Sun Fire E6900 server
  • Sun Fire E20K server
  • Sun Fire E25K server

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