Are the XBench results based on faster memory controllers which were constantly improved with each revision? Or - are the results due to fundamental changes between the logic board series?
The first would indicate that XBench is not hinting at the BWG3 using a logic board other than one based on uni. The second would indicate that the BWG3 may not have been based on uni.
Any thoughts or further info to share? Its very interesting.
David
On Apr 26, 2005, at 11:38 AM, Tom Tubman wrote:
With my limited knowledge of motherboard history, the only outlier motherboard design is the B&W G3. The Pismo, Sawtooth, iMac slot load, and iBook FW all used similar motherboard components, when Apple decided (wisely) that they should standardize on one motherboard architecture after the 9600/6500/6400/4400/6300 motherboard proliferation of the pre-SJ era. The only 10.4 supported MBoard which predates that design is the B&W G3. I was most worried that the B&W wouldn't be supported by 10.4 when the official list was still unknown.
In a completely unscientific aside, this can be seen in the memory scores returned by XBench when these G3 designs (B&W G3, slot iMac, Pismo) are upgraded with a G4 chip. The slot iMac and Pismo's memory speed shoots up to the same level as a stock Sawtooth with the same MHz G4. The B&W's memory speed improves (as to all Macs upgraded to G4) but not nearly to the same level as the slot iMac/Pismo/Sawtooth. I suspect the iBook FW would do as well as the Pismo/slot iMac but alas there is no way to replace the G3 with a G4.
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