>Tyler Smith: > > I asked: >"I will be upgrading my processor to a Crescendo G3/400, will that help?" > >To which Clark Martin responded: >"That would help but I think the bus is probably still going to be the >limiting factor." > >Tyler, do you agree with Clark's assessment?
Maybe. I question if it is an issue at all, though. People now days worry about drive speed for video capture way too much. It's just not an issue anymore. All you really need to capture broadcast quality 640x480x60 fields/sec is 5 megabytes per second, sustained. Any more than that you'll appreciate during editing, but it is *NOT* absolutely necessary. Years ago, you'd have a four drive Wide SCSI array to get that magical 5 MB/s, but now days a single cheap IDE drive with a SCSIDE adaptor on a 9500's (or 7500? Does the 7500 have 10MB/s SCSI internal? I think so) internal Fast SCSI will get upwards of 5 MB/s easily. I have a 9600 with a PCI IDE card and a big 7200 RPM IDE drive. I get about 30 megabytes per second, give or take. My computer slows down quite a lot when it is putting that much data into the drive, because IDE is an inefficent (compuatationally) interface. If I had a F&W SCSI card and drive that could do 30 MB/s, I'm sure my computer wouldn't lag nearly so much during disk I/O, because SCSI isn't the interrupt generating monster that IDE is. I have the stock 233 Mhz 604e CPU. Perhaps with a 400Mhz G3 the IDE card doesn't slow the system down so much, because the CPU is faster and can better handle all those interrupts from the IDE controller. I'm not sure. I know that I wouldn't worry about it. The slowest modern drives are fast enough for full-motion video capture, no dropped frames. If I were setting up to do some editing on a 7500, I would get an 80 GB 7200RPM IDE drive (and keep my stock drive to boot from) and a SCSIDE bridge. I'd plug it into my internal Fast SCSI port, and use the money I saved not worrying about Ultra SCSI or my data transfer rate to buy a used VideoVision Studio PCI or MicroVideo DC-30 PCI card to do my capturing with, because the most important thing in video editing is hardware compression. I'd buy a ton of RAM. If I got tired of waiting for After Effects to render my final projects, I'd buy a G3 or G4 upgrade. If not, I wouldn't even worry about upgrading the CPU. That's my (lengthy) advice. I had to edit it quite a bit for length. :-) -Tyler -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
