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Lloyd recommends 32GB RDIMM modules for most users (more expensive LRDIMMS are for 512GB or more).


Snow Leopard Test Notes

Last updated 2009-08-29 - Send Feedback
Related: Apple macOS, Mac Pro, memory

To test Snow Leopard (Mac OS X 10.6) compared to Leopard (Mac OS X 10.5.8), I created two partitions on an external Firewire 800 drive, each partition being 80GB. I cloned my Leopard boot volume to both partitions, then updated the one of them to Snow Leopard.

This gave me two bootable partitions on the same drive with nearly identical performance characteristics. In less than a minute I could reboot into 10.5 or 10.6 (32-bit or 64-bit), thus allowing comparison of specific features on exactly the same hardware, with exactly the same apps, preferences, etc. There can be no more fair comparison than that.

Test philosophy

Hardware appropriate to the task. I did not, for example, test Photoshop CS4 with 3 or 6GB of memory, a self-defeating configuration for a Mac Pro (though many tasks will do just fine with 6GB). If your time is worth something, get memory and drives which eliminate any bottlenecks. Looking for specific advice? Contact me for a consultation.

OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3


Dual Thunderbolt 3 ports
USB 3 • USB-C
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3

Test machine

Unless otherwise noted, test machine was a quad-core 2.66GHz Mac Pro Nehalem, with 12GB of memory, and a 4-drive striped RAID for data, ensuring adequate disk speed to rule that out as a factor in tests involving Photoshop CS4 and similar programs.

CPU-intensive tests that would benefit from an 8-core machine used the dual 2.93GHz Mac Pro with 24GB.

 

New Mac Pro?

Or iMac 5K or iMac Pro?
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System configuration for CPU, GPU, memory, SSD, backup, RAID, optimizing performance, workflow.
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Remote screen sharing available for RAID, software configuration, etc.

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