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- Xref: sparky comp.os.os2.misc:39861 comp.sys.ibm.pc.hardware:33620
- Newsgroups: comp.os.os2.misc,comp.sys.ibm.pc.hardware
- Path: sparky!uunet!psinntp!blkbox!rbarnett
- From: rbarnett@blkbox (Rick Barnett)
- Subject: Re: EISA/MCA *or* Local Bus? Which is better for multitasking?
- Organization: The Black Box, PO Box 591822 Houston, TX 77259-1822
- Date: Thu, 17 Dec 1992 23:15:38 GMT
- Message-ID: <1992Dec17.231538.29868@blkbox>
- References: <BzBx9G.Ap@utdallas.edu>
- Lines: 37
-
- goyal@utdallas.edu (MOHIT K GOYAL) writes:
-
-
- >Hello.
-
- >I am curious as to which is better for OS/2, EISA/MCA or VL-Bus.(Vesa Local Bus)
-
- >Here is my setup:
- >single user on a stand alone pc.
-
- >that's pretty much it.
-
- >I will be running lotsa programs..games, word processors, Pascal, Mathcad,
- >whatever else.
-
- >Anyways, I would like to know which would offer better performance.
-
- EISA is 32 bits wide with bus mastering but only runs at 8 MHz. Video and
- hard disk controller cards are few and expensive.
- VESA is 32 bits wide with bus mastering and runs at CPU speed (up to 50 MHz).
- A fair number of manufacturers have announced or already produce VL-Bus cards,
- and the prices aren't much higher than the ISA versions of the same cards.
-
- >Also, does it even matter? (ie-if EISA/MCA is much better, will it matter?
- >will I ever make full use of Local Bus, or vice versa?)
- >I plan on having a scsi-2 hard drive and a scsi cd rom.
-
- I have seen specs on two VL-Bus SCSI controllers, with data transfer rates
- up to 66 MBytes per second - since SCSI-2 maximum is 10 MB/sec, you can hang
- a few drives on it without saturating the I/O channel.
-
- Hope this helps...
- --
- Blair R. Barnett u5c95@lfhp113.hso.link.com
- Sr. Systems Engineer 522-0045@mcimail.com
- CAE-Link Corporation rbarnett@sugar.NeoSoft.com OR sugar!rbarnett@uu.psi.com
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