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Sun Chip Multithreading (CMT) Servers

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Chip Multithreading (CMT) Design Overview

Sun SPARC servers and blades with Chip Multithreading (CMT) technology deliver the most advanced, innovative system design on the market. They excel at solving a wide range of datacenter challenges through record-breaking performance, built-in no-cost virtualization capabilities, increased system utilization, and the highest levels of space and energy efficiency.

Discover the Benefits

Sun SPARC systems with Chip Multithreading technology deliver breakthrough performance, scalability, and reliability with dramatic space, power, and cost efficiency on Sun's proven open source Chip Multithreading (CMT) architecture.

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T5440

Huge Savings

See how much you can save by choosing Sun CMT servers over systems from HP and IBM.

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SPARC/Solaris OS #1 Platform in Key Benchmarks

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Sun SPARC CMT Systems and Solaris OS #1 in Oracle BI EE

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CMT Servers Lifecycle Management with Ops Center

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Design Innovation

See how Sun's system and processor innovations can help you optimize your IT infrastructure.

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Virtualization Built-In

Sun's Logical Domains (LDoms) and Solaris Containers provide built-in, no-cost virtual-machine capabilities for Sun CMT servers. You can consolidate, virtualize, and save like never before—run up to 128 virtual machines on a single CMT server without paying for proprietary virtualization technologies. Dramatically increase your server utilization, efficiency, and ROI for free!

Extreme Eco Efficiency

UltraSPARC T2 processor is powered by less than 95 watts (nominal) with less than 2 watts per thread. CMT systems are up to 4x higher in performance per watt and 2–4x higher in memory and internal storage expandability, all in half the space of competitive systems.

Learn how Sun CMT systems beat IBM's latest Power 6 p550 and p570 servers

Highest Security

Integrated, on-chip cryptographic acceleration that supports ten industry standards, including NSA-approved security ciphers, comes at no additional cost. Sun is the only vendor to bundle Virtualization, Crypto, and OS at no extra cost.

Learn more on using the Cryptographic Accelerators

Hear what blogs are saying about Cryptography Acceleration on UltraSPARC T2 Systems

Take a Closer Look

Explore the features and design of Sun CMT Servers.


Inside Innovation Media Center

Video: Engineer Chat

Learn more about the innovations of the 3rd generation UltraSPARC T2 Plus "System on a Chip" processor.

What's New

CoolThreads Products

CMT Systems

Blade Servers

Rackmount Servers

Logical Domains (LDoms) for Virtualization

Solaris Operating System

Sun Ops Center

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Use Logical Domains for Built-in, No-Cost Virtualization

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CMT in Action

CoolThreads in Action

Increased query performance by 54% and decreased Oracle and MySQL database size by 39%.

ISV Endorsements

Customer Testimonials

Open Network System for Oracle Internet Infrastructure

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Trade-in Discounts for Eco-Efficient CMT Servers

Free Onsite Datacenter Assessment

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World Class Performance

Optimized for the highest performance, Sun's Chip Multithreading (CMT) servers with CoolThread technology deliver up to 4x higher performance at as little as 1/4 the cost of competitive systems.

Breakthrough Virtualization

World's first server with built-in, no-cost Logical Domains (LDoms) and Solaris Containers virtualization technologies. Virtualization is FREE and built-in, saving up to $10.5k per server.

Power Efficiency

The UltraSPARC T2 or T2 Plus processor, the industry's first "System on a Chip," packs the most cores and threads of any general-purpose processor available. Get up to 4x higher performance per watt in half the space of competitive systems.

Flash Driven

Flash SSDs shatter I/O bottlenecks and dramatically improve server performance and efficiency. Integrate SSDs and double server throughput while using 98% less power per IOPS and 38% less power per GB of storage.

Most Open Platform

UltraSPARC and Solaris are the only open architectures to maintain binary compatibility over the past 20 years, with the past three versions of Solaris legally underwritten by Sun's unique binary compatibility guarantee. In addition, you get the only 64-bit processor and virtualization hypervisor licensed under the GPL.

Simplified System Management

Integrated Lights Out Manager (ILOM) handles overall server management and integrates easily with leading system management platforms, such as Sun xVM Ops Center, and popular third-party monitoring frameworks.

Highest Security

Integrated, on-chip cryptographic acceleration that supports ten industry standards including NSA-approved security ciphers comes at no additional cost. Sun is the only vendor to bundle Virtualization, Crypto and OS at no extra cost.