home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!ogicse!das-news.harvard.edu!cantaloupe.srv.cs.cmu.edu!lindsay
- From: lindsay+@cs.cmu.edu (Donald Lindsay)
- Newsgroups: comp.arch
- Subject: Re: 64-bit CPU vs 2 x 32-bit CPUs
- Summary: not so it matters
- Keywords: pins
- Message-ID: <1992Jul26.032636.244142@cs.cmu.edu>
- Date: 26 Jul 92 03:26:36 GMT
- Article-I.D.: cs.1992Jul26.032636.244142
- References: <1387@sousa.ltn.dec.com> <1992Jul25.151537.19358@ntuix.ntu.ac.sg>
- Organization: School of Computer Science, Carnegie Mellon
- Lines: 13
- Nntp-Posting-Host: gandalf.cs.cmu.edu
-
-
- eoahmad@ntuix.ntu.ac.sg (Othman Ahmad) writes:
- >Which die area are you measuring? Have you taken into account the area taken
- >by the pads? The pads are huge and require large drivers and protection
- >circuits.
-
- Since the DEC 21064 Alpha chip only supports 43-bit effective virtual
- addresses, the cost is approximately 43-32=11 pins.
-
- Since the package has 431 pins, I don't think that 11 pins was some
- sort of horrendous burden that changed everything.
- --
- Don D.C.Lindsay Carnegie Mellon Computer Science
-