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2019 Mac Pro: OWC Accelsior 4M2 PCIe SSD
Related: 2019 Mac Pro, bandwidth, Mac Pro, Macs, memory, memory bandwidth, Other World Computing, OWC Accelsior 4M2 PCIe SSD, OWC Accelsior 8M2 PCIe SSD, PCIe SSD, RAID, SSD
MPG tested the $9399 Apple 2019 Mac Pro with 384GB OWC memory.
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This page evaluate the 8TB and 16TB OWC Accelsior 4M2 PCIe SSD in the 2019 Mac Pro. In 2021, a 32TB model became available.
UPDATE: see also the 8-blade Accelsior 8M2 PCIe SSD, with twice the speed and up to 64TB capacity.
The OWC Accelsior 4M2 PCIe SSD has 4 slots for M.2 NVMe SSD modules. It is shipped with SoftRAID to combine those 4 modules into a single volume. As tested here, it was configured as a single RAID-0 stripe volume. It is also possible to configure it as 4 individual volumes (one per blade), or dual 2-blade volumes, or a RAID-4, and a variety of other possibilities, all courtesy of SoftRAID. Super fast and easy no matter what.
Results: speed across entire capacity, large I/O sizes
Tested using the fill-volume command of diglloydTools DiskTester.
OMG! This performance obliterates any SSD ever tested by MPG, doubling previously top-end speeds. Not enough? Two cards can be set up as an 8-blade RAID with speeds that should hit 10-12 gigabytes per seconds, which is fairly pointless, but very cool.
Next, see the speed versus transfer size graph, also impressive.
The 16TB model (June 2020) delivers similar performance. This runs rings around a hard drive at about 25 times faster across the entire capacity.
Results: speed vs I/O size
Tested using the run-sequential-suite command of diglloydTools DiskTester.
Bat shit fast! Speed with only 256 KiB transfers already approaches maximum speed of any Apple internal SD and by 512 KiB, the OWC Mercury Accelsior 4M2 trounces the very fastest Apple internal SSD at its best. The Accelsior only gets faster from there!
Below, the 16TB model (June 2020) delivers similar performance.
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$980 SAVE $8020 = 89.0% OWC 8.0TB OWC Accelsior 4M2 PCIe 3.0 NVMe M.2 SSD Storage Soluti… in Storage: PCI
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$5799 SAVE $200 = 3.0% Apple 32" Pro Display XDR 16:9 Retina 6K HDR IPS Display (Nano-T… IN STOCK in Computers: Displays
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Apple 13.3" MacBook Pro M1 Chip with Retina Display (Late 2020, Space Gray)
SAVE $500
