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Aug 28, 2011 9:09 PM in response to Ramón G Castañedaby romko23,I have the same G5 Quad as you do and I see Leopard is much faster with opening and running applications.. I guess because it has 4 x 2.5 ghz processors in it.. I just see that Leopard is much faster than Tiger.
Btw, UNDISCLOSED... Quad G5 can be upgraded to 32GB PC2-4200 DDR2 memory.. I have done it and I now have 32GB.. you will need to get 8x4GB DDR2 chips of speed 533 mhz.
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Aug 28, 2011 9:31 PM in response to Ramón G Castañedaby BDAqua,In my testing Leo uses multiple CPUs & Cores better than Tiger.
@ romko23
Do you have a link to those DIMMs?
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Aug 28, 2011 9:43 PM in response to romko23by Ramón G Castañeda,romko23 wrote:
I have the same G5 Quad as you do and I see Leopard is much faster with opening and running applications.. I guess because it has 4 x 2.5 ghz processors in it.. I just see that Leopard is much faster than Tiger…
That leaves me quite confused. Since we're talking about comparing the performance of applications under Tiger and Leopard on the same machine, how would the "…4 x 2.5 ghz processors in it…" favor Leopard and not Tiger? ???
romko23 wrote:
…Btw, UNDISCLOSED... Quad G5 can be upgraded to 32GB PC2-4200 DDR2 memory.. I have done it and I now have 32GB.. you will need to get 8x4GB DDR2 chips of speed 533 mhz.That's a most interesting tip! Too bad I didn't hear about it a few weeks ago, before I bought the four pairs 2-GB sticks. Oh well, the 32-GB option probably costs and arm and a leg.
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Aug 29, 2011 11:26 AM in response to BDAquaby romko23,★Helpfulhttp://forums.macrumors.com/showthread.php?t=1126338&page=2
I think you just need the 4GB PC2-4200 533 mhz memory and you will be fine.. It is now confirmed that the G5 Quad along with the dual cores of LATE 2005 will take up to 32GB of memory.. This also means its possible that the G4 Powerbooks can take more than 2GB for a total of 4GB of memory.. Theoretically, the G4 architecture can take up to 4GB, but yet Apple has it set to 2GB. Someone needs to try it on the last powerbook G4's with dual-layer.
But, the G5 Quad does support 32GB.
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Aug 29, 2011 12:29 PM in response to romko23by BDAqua,Great, thanks... have you been able to use the RAM beyond 16GB?