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- Path: pellew.ntu.edu.au!jamesm
- From: jamesm@it.ntu.edu.au (James McArthur)
- Newsgroups: comp.sys.amiga.misc
- Subject: Re: The PowerAmiga..
- Date: 11 Apr 1996 07:10:49 GMT
- Organization: Northern Territory University
- Message-ID: <4kib9p$44r@pellew.ntu.edu.au>
- References: <4kdu5k$79m@pellew.ntu.edu.au> <4kfo42INN8d9@maz4.sma.ch> <1208.6674T681T68@studbox.uni-stuttgart.de> <4kg908$n1i@rs18.hrz.th-darmstadt.de>
- NNTP-Posting-Host: morinda.cs.ntu.edu.au
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-
- G'Day Michael Kraemer, you wrote:
- : In article <1208.6674T681T68@studbox.uni-stuttgart.de>, Snowy@studbox.uni-stuttgart.de (Nicholas Stallard) writes:
- : >
- : > Hi,
- : >
- : >
- : > Valerio Ortelli had the following to say about Re: The PowerAmiga.. ..
- : > VO> In article 79m@pellew.ntu.edu.au, jamesm@it.ntu.edu.au (James McArthur)
- : > VO> writes:
- : > >> Anyone know if the PowerAmiga will be 32bit, or 64bit?
- : > >>
- : > >> I would think that if they are designing a new computer they should know
- : > >> this by now?
- : > >>
- : >
- : > VO> The CPU will be PPC 604, that means 32 bits, but today's graphics card
- : > VO> are 64 bits and the next PPC is the 620: 64 bits. The Power Amiga will
- : > VO> probably be 32-64 bits capable so when the 620 will be standard it will
- : > VO> accept it and be at the same level of the graphic card (or chip).
- : >
- : > VO> I hope they will avoid what happened with the 3000: 32 bit CPU and 16 bit
- : > VO> chips.
- : >
- : > I was wondering actually.. everyone is after these 64bit chips but.. the snag on it
- : > is.. if I only have software that is 32 bit i can not use the full potential
- : > anyway :(
- : >
-
- : It's more or less only the marketing types who are "after these 64bit chips"
- : because they can sell the impression that 64bit is more (== better) than 32bit.
- : Very few people really need it or have a minor advantage from it.
- : 64bit normally means support for 64bit integer registers and pointers
- : (64bit floating point is supported by almost every current CPU anyway,
- : including 68k).
- : I don't see any app on the Amiga that could profit from 64bit addressing.
- : 32bits give you memory space up to 4GB. If you don't have the money
- : to spend on 4GB, then you don't need 64bit addressing anyway.
- : 64bit integers make even less sense.
- : This has little to do with the data path width which may be some multiple of
- : 32bit.
-
- : Commercial platforms occasionally use 64bit architectures for very large databases.
- : Even the different UNIXes have just started to define a common API for 64bit
- : (which is needed to work with very large regular files > 2GB ).
-
- I was just wondering since if the Amiga is to be aimed into different markets
- (ie network servers, unix-type systems etc) then the added power that a 64bit
- system would provide would be a big bonus for the Amiga.
-
- Cant a 64bit system push more data down its bus then a 32bit one?
-
- Also, 4Gb is no longer a big amount of memory. It will be even more smaller
- in three years time. The Amiga needs to keep ahead of this limitation, and
- changing the system to 64bit would get round this.
-