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- Path: fc.hp.com!news
- From: koren@hpsrk.fc.hp.com (Steve Koren)
- Newsgroups: comp.sys.amiga.networking,comp.sys.amiga.datacomm,comp.sys.amiga.advocacy,comp.sys.amiga.misc
- Subject: Re: New Press Release!
- Date: 22 Mar 1996 12:24:39 -0700
- Organization: HP Fort Collins Site
- Sender: koren@hpsrk.fc.hp.com
- Message-ID: <oj6vijxnd6w.fsf@hpsrk.fc.hp.com>
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- In-reply-to: "Stefano Agostinelli"'s message of Wed, 20 Mar 1996 18:57:03 +0100
- X-Newsreader: Gnus v5.0.9
-
-
- "Stefano Agostinelli" <agos001@pn.itnet.it> wrote:
-
- > There's little intelligence in comparing a 100MHz cpu with a 25MHz
-
- Yes, exactly. That's what I've been trying to say :-), but you keep
- insisting on saying, "well, *if* they ran at the same clock speed, the
- 68K would be faster!". While true, that is meaningless unless you can
- actually purchase a 68060 at the same clock speed.
-
- > Well it means cause if cpu A provides 2x power than cpu B at the same clock
- > rate I tend to think that cpu A is clearly superior in terms of "power".
-
- No, it doesn't mean that at all. "At the same clock rate" is
- meaningless when the CPUs cannot run at the same clock rate. The DEC
- Alpha run at 266 MHz. Even if it would be as slow as a 68060 if it ran
- at 50 MHz, it is still quite safe to say it is a more powerful chip.
- One has to compare reality, not some hypothetical situation where you
- make the clock speeds the same.
-
- If my LW render or a complex symbolic integration takes many times
- longer on my 68060, I care little that it *would* be as powerful as the
- P6 *if* it could run at 200 MHz.
-
- > However it seems that Pentium and 060 at same clock rate are about as
- > fast.
-
- Again, only in theory, because in real life the clocks speeds are not
- the same. 166 MHz Pentiums are available now, and 200s are either out
- or close. Would you like to bet on the chance of there ever being a 166
- MHz 68060?
-
- > > answer is always the same: the Intel chips have higher absolute FP *and*
- > > Int performance than 680x0.
- >
- > No this is wrong.Motorola tests say the 040 is twice as fast than a 486
- > at the same clock rate.Pentium is instead just as fast than a 060 at the
- > same clock rate.
-
- I said the Intel chips have a higher absolute FP and int performance.
- This is not wrong. I did *not* make any claims about any specific
- chips. Of course, you can find specific comparisons where Motorola is
- faster than Intel. You can find specific comparisons where Zilog is
- faster than Intel, too.
-
- My claim was only that the Intel chips are the faster architecture,
- because there are no 68K chips that run as fast as even the middle of
- the road Pentiums, let alone the P6's.
-
- I hate Intel chips because they have breathtakingly poor non-orthogonal
- instruction sets, induced a huge amount of legacy 16 bit code, and many
- other reasons. But it makes little sense to hate them for being slow,
- because they are a great deal faster than the architecture I like (68k).
-
- > I'm not posting this crap..I've just stated that the problem is that Intel
- > chips are available at higher clock rates.
-
- Right. If it was easy to get the 68K up to 200 MHz, it would have been
- done. There are many factors that determine the clock speed at which a
- chip can be run, and one cannot always just increase the clock rate
- arbitrarily or cheaply. Chip designers must design for high clock
- speeds, and even then, yield at the higher rates is often poor.
-
- - steve
-