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Other World Computing...
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Astonishingly FAST Solid State Drives (SSD) Coming Soon

The current Sandforce controller is used in the OWC Mercury Extreme Pro solid state drives that I favor. Now Sandforce has announced the next generation controller, and it is worthy of some serious drool.

OWC Mercury Extreme Pro
My preferred brand of SSD

In a nutshell, just one (1) SSD based on the new controller will deliver sustained read/write performance of about 500 MB/sec when used on a SATA III 6Gb/s controller (current Mac Pro has 3Gb/s ports). It takes 3-4 fast hard drives in RAID-0 stripe to achieve that level of performance!

Bottom line: disk I/O speed will cease to be a significant factor for 99% of computer users, whether it’s a Mac Pro, a MacBook Pro, a MacMini, or an iMac. Which is a never-before transition. For ultra-high performance, just put two of them together in a RAID-0 stripe.

In light of the recent Thunderbolt technology on the MacBook Pro, 500MB/sec is 4Gb/sec, so that three SSDs will max-out even Thunderbolt, which offers 10 Gb/sec.

Mac Pro throttling

The 2009 and 2010 Mac Pro motherboard maxes-out at about 640MB/sec total I/O bandwidth for all SATA ports. The Mac Pro SATA ports are 3Gb/s, which means that the Mac Pro will not only throttle the performance of even a single SSD, the maximum achievable speeds with any number of SSDs is only about 25% more than with a single SSD. Which is very fast of course, but who wants a rev limiter?

The above means that Apple needs to deliver two things this year in a Mac Pro:

  • Internal SATA III 6Gb/s ports so that individual SSDs can run at full speed;
  • An improved motherboard that allows for much higher overall bandwidth when two or more SSDs are used.
  • Multiple Thunderbolt ports for external drives (for more bandwidth, and to avoid the hassle of daisy-chaining).

Given Apple’s 2010 rehash of the Mac Pro design with no appreciable improvements (except CPU speed and cores), one has to hope the non-progress has been due to work in progress on all sorts of goodies for a new model this year.

A workaround to Mac Pro performance throttling

There is a solution coming that avoids the SATA limitations of the Mac Pro: the OWC PCIe SSD card, with up to eight onboard SSDs. PCIe has ample bandwidth, and such a solution is neat and clean and leaves all the drive bays free for 3TB hard drives for voluminous storage.

OWC Envoy Pro Elektron

Ultra-high performance across entire capacity, outperforms the competition.

Tiny, bus-powered, rugged, compact!


√ No more slow and noisy hard drives!
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!
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!

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