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IBM V's Apple NBook 4 edd graphic & Vid

By cruisin66 ·
I am not familiiar enough with the Apple noteboks to make an informed decision on my next notebook purchase. Apple has a reputation of being the best in Graphic and audio editing. From my comparision of both Apple and IBM compatable computers, I have found that computers within the same price range are on the outset, very different in Technology. How can I justify paying the same price for a standard 1 Ghz IBM compatable compared to a 500 Mhz Apple processer with half the mem and Ram. What features does that Apple have that The IBM compatable does not

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There is no general way to compare

by epepke In reply to IBM V's Apple NBook 4 ed ...

Apples and oranges. I use an Apple notebook. It does what I need (cross-platform development and boring stuff like spreadsheets and word-processing) better for me than an IBM-compatible would. There's no generic way to compare.

HOWEVER, with respect to clock numbers, you should consider this. The Intel and AMD (Pentium N, Celeron, whatever) are complex instruction set chips (CISC). The Apple uses a Power PC chip, which is a reduced instruction set chip (RISC). RISC systems accomodate the advances in compiler design made in the late 1980's and 1990's. In RISC systems, the instructions are atomic. They occur in a small number of clock cycles and are essentially indivisible. CISC systems are the more traditional approach, which has been in place since the 1950's. They are designed to make assembly language programming easy. In CISC systems, each instruction is like a little subroutine, running microcode. So, CISC systems generally require more clock cycles to execute an instruction than do RISC systems.

As a result, it is very difficult to compare RISC and CISC systems. With well compiled code, RISC systems generally perform more than twice as fast for the same clock rate. A very clever assembly programmer can produce code on CISC systems that goes quite fast. However, very little is produced in assembly these days.

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