home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!stanford.edu!apple!tim
- From: tim@Apple.COM (Tim Olson)
- Newsgroups: comp.sys.mac.hardware
- Subject: Re: P5 v. PowerPC (WAS: Where the mac really wins)
- Message-ID: <76058@apple.apple.COM>
- Date: 3 Jan 93 16:43:38 GMT
- References: <Bzx997.FMz@jfwhome.FUNHOUSE.COM> <C08vn0.5nI@rahul.net>
- Organization: Apple Computer Inc, Cupertino, CA
- Lines: 22
-
- In article <C08vn0.5nI@rahul.net> jonathan@mecca.epri.com writes:
- | I would hope that the PowerPC is a 64bit chip. Otherwise it won't stand a
- |chance in competition with workstation class machines; even the lower end
- |ones.
-
- How so? The high performance of the two existing 64-bit
- microprocessors is not due to their "64 bitness"; it is due to their
- recent design. Both went to 64 bits for other reasons:
-
- 1) Current & future memory addressing expansion
- 2) It didn't cost much in die area or speed penalty
-
- (I assumed by "competition" you meant "a performance comparison")
-
- That said, the PowerPC architecture defines both 32-bit and 64-bit
- implementations. The 601 which is now sampling is a 32-bit
- implementation.
-
- --
- -- Tim Olson
- Apple Computer Inc. / Somerset
- (tim@apple.com)
-