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AMD Enhances Upcoming Quad-Core Opteron
By
ChannelTimes Staff
International Desk, Feb 13, 2007
AMD unveiled more architectural features for its upcoming native Quad-Core AMD Opteron processors (codenamed "Barcelona") during a presentation at the International Solid State Circuits Conference (ISSCC).
In addition to the estimated 40-percent performance advantage native Quad-Core AMD Opteron processors are claimed to offer over the competition in benchmark testing, AMD said the redesigned microarchitecture will enable new power- and thermal-management techniques, strengthening the performance-per-watt AMD Opteron processors currently deliver. Among the new features are enhancements to AMD PowerNow! technology.
"AMD has always focused on delivering increased levels of performance without making compromises in power efficiency," said Randy Allen, corporate vice president, server & workstation division, AMD. "'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. New power management features, unique to the x86 market, combined with industry-leading performance and stability, make it clear why AMD remains the smarter choice for enterprises."
The new enhancements to the PowerNow! technology, AMD said, 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.
Quad-Core AMD Opteron Processors are expected to be available in mid-2007.
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Excellent move by AMD. |
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- Shashi Pandey,
Priya Limited, Lucknow
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