Re: Difference between Apple SCSI and Apple HS SCSI

[dempson@actrix.gen.nz (David Empson)]

Matt Portune <mportune@telerama.lm.com> wrote:

> I'm trying to decide which SCSI controller to get for my girlfriend's GS.  She
> doesn't need the ripping performance of a RamFAST, but I don't want the
> controller to be painfully slow, either.  She has a ROM 01 with 4.25 megs of
> RAM, and that's it.  Nothing else is in the machine.
> 
> My question is, on this machine, how much of a speed difference will be
> noticable between the regular Apple SCSI card and the Apple High-Speed SCSI
> card?

Under ProDOS-8, the difference is not particularly obvious.  Under
GS/OS, the High-speed card is significantly faster.  This is most
noticeable in file copy operations on ProDOS volumes, but even booting
GS/OS is noticeably slower with the original card.  After using the
high-speed card, I found the original card very inconvenient.