PowerLogix 750 MHz-1GHz G4 upgrades

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tigerwoods99tigerwoods99
Posted:
in General Discussion edited January 2014
The wait is finally over:



<a href="http://www.powerlogix.com/news/press.html#powerforceg4"; target="_blank">http://www.powerlogix.com/news/press.html#powerforceg4</a>;



Question is whether the 7455 is really worth it on a 100 MHz bus, as these are available for 100 or 133 bus. I don't think it would be worth it to have a 1 GHz over a 750 if you get a 100 MHz bus version.



Also, I think this could point to something big at MWNY because I don't think Apple has wanted the upgrades to be as competitive with their machines, however you can now purchase a G4 upgrade at Apple's top clockspeed (granted it is single processor still).

Comments

  • Reply 1 of 4
    emaneman Posts: 7,204member
    Finally.
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  • Reply 2 of 4
    junkyard dawgjunkyard dawg Posts: 2,801member
    Nice, but $750? That's too much. I would not pay more than $350-$450 for an upgrade card.



    You know, it's possible to buy a 733 MHz G4 CPU daughter card for $300, and then overclock it to 800 MHz. Just goes to show you how much of a rip off that powerlogix upgrade is.
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  • Reply 3 of 4
    marcukmarcuk Posts: 4,442member
    All this talk of no performance advantage on a 100mhz bus...Its all theoretical isn't it. In the real world isn't it very unlikely that you can send a 1ghz processor a very large dataset of 1 cycle computations that would max out the bus. Surely anything that takes 2-4 cycles to compute will not max out the bus, and this surely must be the majority of calculations.



    Im intending to get the 1ghz for my g4 400, and im expecting Cinebench to show me a score of 12-13 for software rendering, while I'd expect a 750 to show me about 9 CB's.



    Maybe if I wrote an altivec app to send the processor 10billion instances of 1+1, I could max out the bus, but I'd not have thought otherwise.



    ????Not really sure....Discuss



    Edit: Also on the powerlogix page it says that the 7455 has 4 integer, 1 double FPU and 4 altivec units. Does this mean that you can now dispatch 4 instructions to Altivec, as opposed to the 7450's 2 at once and the 7400's 1 at a time?



    [ 06-13-2002: Message edited by: MarcUK ]</p>
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  • Reply 4 of 4
    powerdocpowerdoc Posts: 8,123member
    The prize where not fully precised. What will be the cost of a 1GB 133 mhz G4 card with 2 MB of L2 cache ?
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