AMD lancerer nyt quad-core design til Opteron

AMD lancerer nyt quad-core design til Opteron

AMD details native quad-core design features for “Barcelona”

Quad-Core AMD Opteron processors designed for automatic adjustment of individual core frequencies for improving power efficiency in the datacenter

Stockholm – February 13, 2007 – AMD today unveiled more industry-defining architectural features for its upcoming native Quad-Core AMD Opteron processors (codenamed “Barcelona”) during a presentation to the International Solid State Circuits Conference (ISSCC). In addition to the estimated 40-percent performance advantage native Quad-Core AMD Opteron processors can offer over the competition in benchmark testing, AMD’s redesigned microarchitecture will enable new power- and thermal-management techniques, strengthening the industry-leading performance-per-watt AMD Opteron processors currently deliver today. Among the new features are enhancements to AMD PowerNow technology for dynamic adjustment of individual core frequencies.

“AMD has always focused on delivering increased levels of performance without making compromises in power efficiency,” said Thomas Stenberg, spokesperson of AMD in the Nordics and the Baltics. “‘Barcelona’ will build on this value proposition while delivering industry-changing dynamics to the x86 server market, much like the original AMD Opteron processor did in 2003.”

Optimum Power Consumption
AMD is taking a multi-pronged approach to enabling reduced system-level power consumption for exceptional performance and low energy costs. Enhancements to AMD PowerNow technology will enable systems based on native Quad-Core AMD Opteron processors to dynamically adjust frequencies at the individual core level for further power consumption reductions. 

Another new power management enhancement leverages AMD’s Direct Connect Architecture and integrated memory controller by enabling “Barcelona” processor cores to reduce voltage levels even while the memory controller runs at full speed.  This enables the memory controller to service external memory requests independent from core p-state transitions, thus enabling p-state opportunities which can lead to additional power savings.

The system memory interface also includes a feature that powers down memory logic when not in use.  AMD has also made extensive use of “clock gating” in the “Barcelona” design to enable automatic shut-down of areas of logic not being utilized for further power savings. Upcoming native Quad-Core AMD Opteron processors are designed for the same power infrastructure AMD customers depend on today - 68, 95 and 120 Watt thermal envelopes.

Optimum Performance Levels
While special attention was paid to the power-saving design features in native Quad-Core AMD Opteron processors, equal emphasis was placed on delivering industry-leading performance.  Quad-Core AMD Opteron processors are packed with core and cache enhancements designed to improve performance on a range of server and workstation applications.  Cache-sensitive transactional applications such as Web, database and email servers can benefit from the addition of a 2MB shared L3 cache.  Simulations conducted in AMD laboratories indicate that certain database applications will see performance improvements up to 70 percent and certain floating point applications will experience performance gains of up to 40 percent over platforms powered by current dual-core AMD Opteron processors. 

Quad-Core AMD Opteron Processors are expected to be available in mid-2007.

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