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- Date: Sat, 17 Feb 1996 22:19:03 -0500
- Organization: NTR.NET Corporation
- Lines: 42
- Message-ID: <Matthew-1702962219030001@rmta036.ntr.net>
- References: <310F5CC3.5BCB@auckland.ac.nz> <ufg2cupoa5.fsf@ftp.ardi.com> <311ED0DA.6AD9A628@best.com> <edkemp-1602961304180001@ekemp.consult.csc.com>
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-
- No. As I understand it, Apple's marketing department decided to response
- to what had been standard practice in the WinTel world; that is, quoting
- the processor speed, rather than the bus speed. Apple had been using the
- more conservative rating, but decided to change to what had become an
- industry standard method of quoting speed. Thus, consumers that had been
- comparing, say, a 33mhz 68040 to a 66mhz 80486 and concluding that the 486
- was faster & therefor better ('taint so,) would be more inclined to
- compare Apples & oh, say, prunes and thus arrive at a more enlightened
- conclusion.
-
- Here's a quote from the Executor FAQ.
-
- " Question 1.8. How fast is Executor?
-
- Executor converts mc680x0 instructions into 80x86 instructions and then
- runs the new instructions. There is some overhead associated with this
- process, but for cpu intensive tasks, a 75 MHz 486DX4 will run
- approximately as quickly as a 25 MHz 68040. NOTE: Lately some people have
- begun calling 25 MHz 68040s "50 MHz 68040s", but we're not using that
- trickery in our description. The paper /pub/SynPaper available on
- ftp.ardi.com describes how we can run mc68040 code so quickly on an 80x86.
- SynPaper compares a few different systems and shows that a 90 MHz Pentium
- runs almost as fast as a 50 MHz 68040. "
-
-
-
- In article <edkemp-1602961304180001@ekemp.consult.csc.com>,
- edkemp@tiac.net (Eric Kemp) wrote:
-
- -> >
- -> > Now, when Apple decided to start calling its, for example, powerbooks
- -> > "33/66-MHz" PowerBooks, I just had to laugh. This shows just how
- -> > desparate they are. The 68040 does indeed use two different clocks signals.
- -> > This is an implementation choice that does not necessarily have
- -> > anything to do with exactly how the internal processor core operates.
- ->
- -> While I agree that this is misleading, I believe it was done to indicate
- -> the clock speed if the machine is upgraded to a PowerPC chip. The Quadra
- -> is used to own was 33 Mhz base, 66Mhz with upgrade. I would not call this
- -> an act desperation. Unfortunately, the general public views megahertz as
- -> the ubiquitous definition of speed (like MPH) when it is accurate only in
- -> comparison to the same processor.
-
-