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David Every has written an article titled : "AMD has written some things lately, as well as Intel has in the past, pointing out that the difference between RISC and CISC no longer matter. That CISC is catching up and surpassing RISC. So let's look at this hypothesis."
Comments
HIs article on Moviemaker versus iMovie is pathetic. Does it even have a point?
what a geek.
I hate to say this, but David K. Every's writing is a little on the crappy side.
While there are some informative tidbits hidding in his works, they are small and few. What's worse, the little that is there gives the illusion that what he is writing is sound and good. For the most part, it isn't.
Take a read, but make sure to bring along several pounds of salt with you. Remember, the truth lies 'between' the extremes.
Food for thought...
Mr. Jelly
If it doesn't make any difference, then why does Intel use a RISC architecture at the core and then have to recompile it to CISC so it can talk to the rest of the board. It is plain as day that at the same clock speed, RISC processors are much faster. Of course they say it doesn't matter because they are overclocking the processor to produce the same results.
Who cares if you have a great RISC chip if it is slow as molasses?
That's a pretty silly comparison, because a RISC or CISC processor is designed to perform the same basic function (in this case, running a personal computer), where, as you point out, a car and a truck are used for different purposes.
Despite RISC's simplification, RISC chips still suffer from lower clock speeds. Why would a "simpler" chip need a longer time to "refresh"?
I'd like to buy into Every's assertion that CISC is doomed because it has become excessively complex (hey, the same thing has happened to Windows too) but, simultaneously, RISC chip speeds need to increase. Intel's entry into RISC is not so much a win for this method of design but a strong competitor to it.
there are great articles on risc vs. cisc (p4 vs g4, etc.) on arstechnica.com, though they are in-depth articles detailing hardware that is a bit hard to understand if you haven't taken at least a general EE/CS course on computer systems and hardware. nevertheless, the articles are well written and understandable, and basically say that there the distinction between risc and cisc is irrelevant, and that all chips now fall somewhere in between somewhere in between
That was probably the worst article/site that Macnn has pointed me to in the last 4 years of reading this site almost daily. The technical information wasnt there to be an informative article. And the point was lost in bad writing style to be a good essay.
Honestly the best comparison articles are at arstechnica (which another reader pointed out)
DKE is full of it on this one. His statement that RISC has fewer instructions than CISC shows that he has no real clue about programming or instruction set architectures.
RISC - Reduced Instruction Set Computing means breaking down of instructions to a granular and consistent size. This breaking down means that there is a LARGER instruction set, not smaller as DKE claims. This means that to complete similar functions, RISC needs to issue more instructions to the CPU than a CISC CPU.
The bloat, or inflation, is approximately 30%. For modern caches, having a 30% effectively larger cache in CISC is an advantage that is lessened by the need to break down CISC instructions into micro-ops or RISC like instructions.
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Fresh-Faced Recruit
Joined: Jul 2001
so what's better...
a car or a truck?
wtf kind of a question is that? i dont drive my M3 to haul mulch and i don't drive a truck to have fun racing. use the tool best suited for accomplishing your goals and don't worry about it.