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Comparison In Technology

By hisyam ·
Can somebody explain to me what are the differences betweeen RISC and CISC processor architecture in terms their technology and innovation and why most corporate data centre prefer RISC than CISC?.How about the processing speed and capability?

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Comparison In Technology

by dmiles In reply to Comparison In Technology

Complex Instruction Set Computer (CISC) microprocessors incorporate a large number of instructions,some cases,a very complex task can be performed in a single instruction in the program code
Reduced Instruction Set Computer (RISC)microprocessors are based on small set of instructions that perform discrete operations
It is noted in test that RISC has an edge over CISC in performance
Windows NT performs better on RISC,because the processor is cleaner and out performs the best x86 processors.
REF:www.intel.com for more info

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Comparison In Technology

by hisyam In reply to Comparison In Technology

The question was auto-closed by TechRepublic

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Comparison In Technology

by RealGem In reply to Comparison In Technology

RISC processors only perform simple operations, but they are highly optimized for them. So, they can execute many more instructions per second than a CISC processor. CISC processors perform simple operations too, but they can perform complex instructions as well. But, since they are more general-purpose, CISC processors cannot be optimized for any one type of operation without sacrificing performance on the others. So, they tend execute fewer instructions per second.

RISC processors can do all the same things that a CISC processor can, but it will often take more cycles. For example, a RISC processor may not directly support arithmetic division, so it would have to perform repeated subtractions in order to arrive at the equivalent.

RISC processors make more sense if the operating system and software are optimized for them. Unix operating systems and database management systems are very dependent on throughput, and their makers have optimized them for the RISC environment.
CISC processors are appropriate for computers that will not be performing specialized, processor-intensive, tasks. Word processing and e-mail, for example, do not require a RISC processor. That nice little Pentium box that you are probably usingto read this is just fine for you. And cheaper.

This is why many data centers have a lot of RISC processors.

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Comparison In Technology

by hisyam In reply to Comparison In Technology

The question was auto-closed by TechRepublic

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by hisyam In reply to Comparison In Technology

This question was auto closed due to inactivity

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