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OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!

Apple iMac Pro: First Look at Performance

Thank you for buying your 2017 iMac 5K and/or iMac Pro at B&H Photo, and for upgrading it at OWC MacSales.com. Both vendors made and make my extensive tests of the Apple iMac Pro and other Macs and gear possible.

Not sure which Mac you need, or how to configure it, plan for backup, etc? Consult with Lloyd.

These first two pages establish certain baseline behaviors of the 2017 iMac Pro.

2017 iMac Pro: CPU Cores, Clock Speed, Turbo Boost

2017 iMac Pro: Scalability with CPU-Intensive, Memory-Intensive and Mixed Workload

2017 iMac Pro: Power Usage (Watts)

Much more is coming tonight and tomorrow including comparative real-world tests that might save you thousands of dollars, or thrill you with performance but empty your wallet.

Thank you for buying from OWC / MacSales.com which hosted me at OWC labs and made machines available for testing, and buying iMac Pro from B&H Photo, which loaned me an iMac Pro which is sitting on my desk for a few weeks. This project was a huge amount of work and is provided for all comers to read, so subscribing to my publications is much appreciated.

Relative performance for CPU-intensive moderate memory access workload on 2017 iMac Pro
OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!
Save Big $$$$ on Memory for 2019 Mac Pro

Up to 65% better pricing than Apple

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



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