Here are some xBench scores. For reference I've included my G4 Sawtooth. The order of scores is 8600 (G3/300/384Mb/8Gb/Rage 128) iBook (500/384/15), Pismo (400/512/30), G4 (500/1Gb/180Gb/ATI8500). Total: 17.3, 31.8, 38.3, 70.5, CPU: 19.4, 32.2, 27.0, 59.5, Memory: 7.6, 15.7, 24.3, 77.1, Quartz: 19.7, 39.0, 57.5, 82.8, OpenGL: 43.9, 65.5, 54.3, 59.1, UI: 41.2, 35.6, 72.9, 115.4, Disk: 12.1, 34.0, 36.4, 99.9. There are a few results in there that don't make much sense, like the iBook and Pismo being up with the Radeon 8500 for OpenGL, but the results are pretty consistent over several tests. Memory speed and disk speed seem to be the 8600s bottlenecks. Can the 8600 boot from a firewire drive? That would help the drive speed issue, but is there anything I can do about memory speed? I de-interleaved the RAM to install OS X, would interleaving it make much difference? Thanks James
The OpenGL test in XBench is *completely useless* for comparing 3D cards except to confirm that one is installed and the drivers are working (if not, the score runs about 8-15 instead of somewhere over 40).
Interleaving the RAM will make a big difference in OS X as it is already the biggest bottleneck in these older Macs. I get a memory score of 15.2 in my 7600 G3/300 with OS 10.3.3 with 384 MB interleaved. Slower RAM will lower your Quartz and UI scores as well: my 7600 G3/300 gets 34.4 in Quartz and 47.5 in UI (with a Rage128). Your L2 cache might not be enabled as that contributes to the Memory score.
That disk score is also pretty low - my 6 year old 5400RPM Quantum Fireball SE gets 20.18 on the MBoard SCSI but it's half empty.
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