On Thursday, November 6, 2003, at 03:05 PM, <[EMAIL PROTECTED]> wrote:
Hello list,
As it stands, I have a MacAlly firewire/usb combo card, along with the Radeon 7000. It *seems* like the PCI Extreme hack is working....
OK, the beige has a 66 Mhz bus. But if I purchase a SIIG or a Sonnet Tempo ATA/133 card with the processor, what will be the difference?
Because all of that data is *still* running through that pokey 66 mhz bus.
To me, it seems that a slower 66 Mhz is less relevant to system performance with an ATA card installed. How can a fast ATA card and fast processor *not* be helpful?
They can help, but the processor, the disk controller, and the memory all *still* talk along that 66 mhz bus.
I may as well run my equipment until I can't anymore. I marvel at the expansion of the beige machine. It has limits, but it's been a good soldier for me.
You're free to do what you want, but your reasoning is not as sound as you think.
1) The bus speed has a LOT to do with system performance.
No matter how fast a processor or drive controller you put in your beige, you're still shackled to a 66 mhz bus to move data between them, which is competing with the Radeon, even worse if you've got the QE hack turned on, and your memory is still slow.
The reason that Apple disabled QE on PCI systems is because it just doesn't work well on a PCI bus. On AGP systems the only things talking on that bus are the video card and the processor. On a PCI bus everything's talking.
2) The upgrade path stops here. 10.3 is not supported on your beige. I know that Ryan is working no X-Post Facto to get the beiges to work with 10.3, but it's a hack. A very good hack, but a hack nonetheless.
I can attest that a 450 mhz gray and white G4 tower is a *lot* faster than my G4 upgraded Beige at 465 mhz. A 100 mhz bus (and memory) is 50% faster than your 66 mhz bus, not 5-10%, and the bus is the bottleneck, because it's sitting between *everything*.
I cannot comprehend where you're coming up with that 5-10% number.
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