Quad-core Xeons use small power plant to maul Opterons
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When Fully buffered DIMMs attack A recent benchmark comparing quad-core chips asserts that Intel Xeon-based servers have an edge in performance but are complete power hogs when compared to the dainty energy appetite of AMD Opteron-based servers.â¦
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After Intel CEO Paul Otellini bragged that Intel&#39;s Xeon chip was the most energy-efficient processor, Neal Nelson compared it to AMD&#39;s offering and found that Intel wasn&#39;t being exactly truthful.Recent tests by Neal Nelson &amp; Associates, an independent computer performance consulting firm, have reported that in 36 of the 57 cases tested an AMD Opteron-based server delivered better power efficiency than a comparably configured Intel Xeon-based server.The tests were performed on servers configured with 2, 4, 6 and 8 gigabytes of main memory at various transaction processing load levels. The results show that for certain configurations and at certain load levels the Intel Xeon based server was 2.4 to 11.7 percent more power efficient while in other cases the AMD Opteron based server was 9.2 to 23.1 percent more power efficient. In addition, when the systems were idle and waiting for transactions to process, the AMD server was 30.4 to 53.1 percent more power efficient.Power consumption while the servers are idle is particularly significant since many servers spend most of their time waiting for work. A November 16, 2006 press release from IBM quotes a report by the Robert Frances Group which states that on average servers in data centers are idle 80 to 85 percent of the time.The test results also showed that:-- Larger memory configurations deliver both higher throughput and better power efficiency;-- Intel&#39;s power efficiency advantages decrease as memory size increases;-- AMD&#39;s power efficiency advantages increase as memory size increases;-- For CPU-intensive workloads, the Xeon delivers 8.0 to 14.0 percent higher peak throughput;-- For primarily I/O intensive workloads the Opteron delivers 11.3 to 19.4 percent higher peak throughputNeal Nelson conducted these tests in response to a statement made by Intel CEO Paul Otellini in a July 18, 2007 analyst conference call. During that call Mr Otellini referred to Intel&#39;s &quot;lead in power efficiency&quot;. Neal Nelson decided to use his company&#39;s benchmark toolset to determine if Intel actually had a lead in power efficiency.In a somewhat dry comment, Neal Nelson said: &quot;It appears that Mr. Otellini&#39;s statement is inconsistent with the test results.&quot;The tests were not financed or sponsored by any company or group.Techworld is an InfoWorld affiliate.&#160;
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Licensing move will let others build specialized coprocessors that will plug into sockets tailored to Opteron or Athlon.
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CHIP FIRM AMD said it is demonstrating a fourway Opteron server using dual processor cores. 90 nanometre technology and silicon on insulator (SOI) technology.
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Advanced Micro Devices Inc.&#39;s announcement that its new PowerNow technology will be available on its Opteron line of processors could mean a lot to some enterprise customers.
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Future Opteron processors will have power management technology from AMD&#39;s laptop and desktop systems, the company has announced.
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The fact that AMD plans to unveil its quad-core Opteron server processor on Monday is the worst kept secret since rumors yesterday that Apple CEO Steve Jobs would unveil something having to do with iPods today. What has come as a surprise is that Intel decided not to wait to let AMD have its day before releasing some initial specifications for its forthcoming "Tigerton" class Xeon MP quad-core server processors.
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Advanced Micro Devices has given out more details on its fortcoming dual-core microprocessor chip. The Opteron-based design is said to be 30-55 percent faster than AMD&#39;s single-core chips, but it will fit in existing server designs.
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originally offered on notebook PCs -- to its Opteron 32- and 64-bit x86 processors for server applications. The technology will help servers to run
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Cool computing in the cloud In 2002, a couple of hardware geeks thrust a crazy, fresh idea on the computing community. Chris Hipp, a co-founder of blade maker RLX, and Wu-chun Feng, then a researcher at Los Alamos National Laboratory, concocted a very powerful cluster with servers based on laptop chips from Transmeta. The cluster failed to outperform similar Xeon-based systems, but it could run in a desert warehouse with no special cooling and with less failures than other Los Alamos boxes protected by very expensive air conditioning systems.â¦
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Company will manufacture a dual-core PowerPC processor.
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Dueling chipmakers try to steer attention to tomorrow's battleground for quad-core server processors.
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Company puts on a demonstration of promised 'Barcelona' quad-core Opteron chip.
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Intel's lower-powered -- but high-power -- quad-core microprocessors go on sale Monday. Drawing only 50 watts for each quad-core processor, the L5320 and L5310 require as much as 60 percent less power than the company's existing 80-watt and 120-watt quad-core server products.
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It said it has demonstrated a working version of the technology based on its Opteron chip. By Darrell Dunn. The shift to dual-core microprocessors continues to accelerate.
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Server makers are showing their first systems based on AMD's new quad-core Opteron chip, known as Barcelona.
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Company looks to leap past current limit of eight Opteron processors in a single server.