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Opteron

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Opteron

A family of 64-bit CPU chips from AMD, formerly code named Sledgehammer (part of the Hammer line). Introduced in April 2003, the Opteron fully supports 32-bit applications, but requires that programs be optimized and recompiled to take full advantage of the 64 bits. The 64-bit version of Windows XP also takes advantage of the increased CPU word size. Intended for servers and high-end workstations, the Opteron competes with Intel's Xeon and Itanium lines. AMD subsequently introduced 64-bit Athlon CPUs (see Athlon).

Multicore Opterons
In 2005, following the introduction of its Athlon dual-core chips, AMD introduced dual-core Opterons with quad-core compatibility (dual cores could be replaced with quad-core chips on the same motherboard). In 2007, it introduced the Quad-Core AMD Opteron processor (code named Barcelona). See Hammer, Xeon and Itanium.



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Building on an impressive debut on the TOP500 list in November 2003, AMD Opteron processor-based systems appear three times among the top 20 on the most recent list.
AMD Opteron installations see a increase on the newest TOP500 ... by EDP Weekly's IT Monitor
The Opteron chip, the first microprocessor to natively support both 32- and 64-bit applications, represents both an enormous challenge for the struggling chip maker (the company has been losing money for years) and a significant challenge to Intel, the world's biggest chip maker and the OEM with a stranglehold on the desktop market--and large market share in the enterprise as well.
AMD's Opteron aims at Itanium in 64-bit battle by Piven, Joshua / Computer Technology Review
In addition to the estimated 40-percent performance advantage native Quad-Core AMD Opteron[TM] 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.
AMD Details Native Quad-core Design Features for Breakthrough ... by Business Wire
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