The Itanium is very expensive, and complex. It will come with massive internal resources. The Itanium is cutting-edge processor design. The Itanium architecture was designed for the new industry in high performance processor architecture for the next twenty years.
This Itanium processor architecture has been renamed several times during its history. HP originally uses to call "PA-WIDEWORD". Intel later called it as "IA-64″. The performance boost in "IA-64″ is due to a handful of new technologies which is known as "EPIC" -Explicitly Parallel Instruction Computing. This new latest technology developed by both Intel and HP. It is a 64-Bit register, high explicitly, parallel architecture. The base data word is 64 bits, Byte-addressable.
The IA is the part of the processor that fetches instructions and the registers, which are high speed memory locations that process number of bits of data at a time. The architecture implements speculation and branch prediction. This Itanium processor is designed for high performance computing, scientific, and technical and business applications.
This "IA-64 bit" processor architecture contains 128 integer registers, 128 floating point registers, 64 one bit predicates and 8 branch registers.
The itanium processors came into market before the core 2 duo but it plays a significant role if anyone talk about the speed.
Ram_Chaturvedi
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