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- Newsgroups: comp.sys.amiga.hardware
- Path: admaix.sunydutchess.edu!ub!dsinc!scala!news
- From: dave.haynie@scala.com (Dave Haynie)
- Subject: Re: Amiga vs. PC
- Sender: news@scala.scala.com (Usenet administrator)
- Message-ID: <1996Mar6.193735.7267@scala.scala.com>
- Date: Wed, 6 Mar 1996 19:37:35 GMT
- Reply-To: dave.haynie@scala.com (Dave Haynie)
- References: <4glavu$dlq@hasle.sn.no> <4glb5c$dlq@hasle.sn.no> <hwollman-2602961155360001@hwollman.mitre.org> <Joaquin_Menchaca-0103962126590001@17.127.19.156> <4hflpv$2vdt@rohcs1.uhc.com> <313CEFBB.2781@elvis.rowan.edu>
- Nntp-Posting-Host: gator
- Organization: Scala Computer Television, US Research Center
-
- In <313CEFBB.2781@elvis.rowan.edu>, Maciej Gorny <gorny@elvis.rowan.edu> writes:
- >Michael M. Rye wrote:
- >>[...]
- >> AmigaOS always was/will be 32 bit. And what does 7 MHz have to do with
-
- >:) actually it won't be 32bit for too long. Arent the PPC boards
- >64bit in design?
-
- Nope. While today's PPC processors live on a 64-bit bus (they also
- work on a 32-bit bus), they are in fact 32-bit processors. The PPC620
- will be the first one that's internally 64-bit, that may or may not
- show up this year. And it affects the OS, so that even when PPC620s do
- arrive, most 32-bit OSs won't run on them right away. This shouldn't
- affect user mode programs, however, which can continue to run 32-bit
- on a 64-bit processor.
-
- Truth is, in most applications you don't need a 64-bit processor
- (though I'm sure some bozo said that about 32 and 16 bit processors
- years ago). The larger word size doesn't buy you any extra speed doing
- most personal computer things, since 64-bit integer values, and
- addressing beyond 4GBs, aren't generally of much use. These do come
- into play in specialized applications, like large disk-mapped database
- systems. You have 64-bit floats on PPCs already; the "64-bitness" is a
- question of integer and address size only. A 32-bit version will cost
- less than a 64-bit version at the same speed. In fact, the delay on
- the PPC620 is reported to be the realization that the PPC620, targeted
- for 200MHz or so, is more costly but no more powerful than the
- forthcoming PPC604e at 200MHz. And the 64-bit market for PPCs is
- basically just IBM right now.
-
- Dave Haynie | ex-Commodore Engineering | for DiskSalv 3 &
- Sr. Systems Engineer | Hardwired Media Company | "The Deathbed Vigil"
- Scala Inc., US R&D | Ki No Kawa Aikido | info@iam.com
-
- "Feeling ... Pretty ... Psyched" -R.E.M.
-
-