home *** CD-ROM | disk | FTP | other *** search
- Path: comma.rhein.de!serpens!not-for-mail
- From: mlelstv@serpens.rhein.de (Michael van Elst)
- Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
- Subject: Re: EDO RAM on March Amiga?
- Date: 15 Jan 1996 12:21:39 +0100
- Organization: dis-
- Message-ID: <4dddc3$74o@serpens.rhein.de>
- References: <wfblanDKzuKL.IC4@netcom.com> <4d2g5v$inp@serpens.rhein.de> <wfblanDL0p1y.H10@netcom.com>
- NNTP-Posting-Host: serpens.rhein.de
-
- wfblan@netcom.com (Wells Fargo Bank) writes:
-
- >Actually, EDO RAM is faster and it has nothing to do with 2nd level cache.
-
- I disagree.
-
- >See, EDO RAM can still READ from RAM where regular DRAM has to wait for
- >a refresh cycle,
-
- Refresh cycles do close to nothing to DRAM speed.
-
- >hence, when the one DRAM is waiting, the other is
- >READING. Only situation that it would still have to wait is if it tried
- >to read the exact same address twice in a row. EDO can READ A,B,C,D, etc.
- >while regular DRAM only does, A,wait state,B,wait state,C, etc.
-
- >An overall performance increase of 6%-10% is not uncommon.
-
- The difference is that EDO-RAM can deliver data while it is already
- accessed for the next cycle. This is allows for pipelined transfers.
-
- >Now... Does anyone actually KNOW anything about AT's plans regarding the
- >RAM slots? Or about EDO RAM in general?
-
- Dunno about the RAM slots. But you don't know much about EDO RAMs.
-
-
- --
- Michael van Elst
-
- Internet: mlelstv@serpens.rhein.de
- "A potential Snark may lurk in every tree."
-