Final Words

The Extreme Pro is without a doubt the fastest SATA 6Gbps SSD in the market. As Anand said in the Extreme II review, SanDisk has picked an excellent balance of IO consistency and peak performance, resulting in high performance regardless of the workload. Too often I have seen manufacturers focusing on just one or the other, with the end result being an unbalanced drive. Intel's SSD 730 is a prime example of this -- its random write consistency is one of the best we have ever seen, but the lack of peak performance makes it a middle-class performer in our Storage Benches. In the end, real world performance is a mix of consistency and peak performance because the drive is not constantly hammered with high queue depth write activity (which is why peak performance matters) but on the other hand it must also be able to handle a constant IO load consistently. 

My only real complaint is SanDisk's decision to not include TCG Opal 2.0 support in the the Extreme Pro. Right now there are no high performance client SSDs with proper encryption support, and I think that's a niche SanDisk should have taken onboard. Currently you can buy the Crucial MX100/M550 or Samsung 840 EVO to get proper encryption support, but that comes at the cost of performance. In my opinion a user should not have to decide between performance and encryption because both are vital. There is hope that the X300s fills the gap by providing Extreme Pro class performance with full encryption support, but I am afraid that the limited availability and the higher price would make it out of reach for most consumers. We will see when we get one in for testing.

NewEgg Price Comparison (6/15/2014)
  240/256GB 480/512GB 960GB/1TB
SanDisk Extreme Pro $200 $370 $600
SanDisk Extreme II $172 $308 -
SanDisk Ultra Plus $143 - -
Crucial MX100 $108 $220 -
Crucial M550 $157 $305 $496
Plextor M6S $165 $400 -
ADATA Premier Pro SP920 $150 - -
Intel SSD 730 $219 $445 -
Intel SSD 530 $165 $330 -
OCZ Vector 150 $200 $360 -
Samsung SSD 840 EVO $150 $255 $450
Samsung SSD 840 Pro $199 $437 -

There is no way that the Extreme Pro can compete with Crucial MX100 and Samsung 840 EVO in price but it is a totally different animal with substantially higher performance. When the Extreme Pro is compared against other high-end SSD, namely Intel's SSD 730, OCZ's Vector 150 and Samsung's 840 Pro, the prices are quite competitive. NewEgg does not have any stock at the time of writing, but I would not be surprised to see the prices falling a bit once the drive becomes available later this month. 

All in all, the Extreme Pro is the only no compromise high-end SSD in the market (aside from the Extreme II, of course). Its performance is unmatched by any other SATA 6Gbps drive and it is the only truly high performance SSD with proper power management, making it perfect for mobile use as well. It's also the first high-end SSD in 1TB-class capacity, so there is no longer a need to choose between performance and capacity. As long as you can live without hardware encryption support, I am comfortable with saying that the Extreme Pro is currently the best SATA 6Gbps SSD in the market for users who seek the highest performance with consistency.

SanDisk is turning out to be a very dangerous player in the client SSD space. With nearly perfect vertical integration model (they just lack client controller silicon and DRAM), SanDisk has the ability to put against Samsung and Intel who have traditionally held the performance crown. Before the Extreme II, SanDisk was fairly unnoticeable in the retail SSD market, but the Extreme II acted as a warning of SanDisk's skill and knowhow, and the Extreme Pro just further reinforces that. If SanDisk can keep their pace going with PCIe SSDs, others will have hard time keeping up with them.

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  • Kristian Vättö - Tuesday, June 17, 2014 - link

    Unfortunately the tool we use doesn't allow the LBA range to be limited.
  • uruturu - Wednesday, June 18, 2014 - link

    :( I think would have been a head-to-head between Sandisk Extreme Pro, Samsung 840 Pro and Corsair Neutron GTX...
  • sheh - Tuesday, June 17, 2014 - link

    It's good to see also the lower capacity model performing well. I hope other manufacturers would do the same. But too bad there's no 120GB.

    "SanDisk is betting that its target users will ... or the endurance limit will be hit after the warranty runs out"

    Is the warranty not 10 years or 80TB, whichever comes first?
  • Kristian Vättö - Tuesday, June 17, 2014 - link

    Yes. The warranty will be voided if you exceed the 80TB write limit.
  • hojnikb - Tuesday, June 17, 2014 - link

    wow, i never though there are products with 32!!! stacked dies.
    is there any specific product, that uses so much dies ?
  • prophet001 - Tuesday, June 17, 2014 - link

    I was wondering why there was no mention of block size. Do you set the block size on these drives? If so, does it make a difference in the performance?
  • Demon-Xanth - Tuesday, June 17, 2014 - link

    What's going to keep PCIe SSD adoption low is the sheer number of systems that you can't just drop it in and boot in it's current state. What it will likely take is for the drives to ship with a legacy mode that says to BIOS "yeah... I'm a SATA RAID controller with a bunch of drives attached...". The latest EFI updates for NVE and Windows 8.1 are a great step forward though.
  • zuiop - Tuesday, June 17, 2014 - link

    Can somebody explain to me why in most SSD reviews the lack of encryption support is criticised? Of course you want encryption for your data, but why in the drive? It's a black box implementation that you can't fully trust or update, unlike the plenty of open source software solutions. Especially when talking about high performance drives, I'd expect the CPU to have hardware acceleration for encryption, so speed shouldn't be an issue afaict. Can anybody shed some light on this?
  • Kristian Vättö - Tuesday, June 17, 2014 - link

    Software encryption adds unnecessary overhead and thus degrades performance:

    http://www.anandtech.com/show/6891/hardware-accele...

    I think I need to do an article that better describes the usefulness of TCG Opal because there are some security advantages as well. I admit that we probably haven't done the best to fully address this, but hopefully we can still fix it :)
  • zuiop - Tuesday, June 17, 2014 - link

    Thanks for your reply. I'd love to see the article. I couldn't see from that linked article whether the CPU has AES NI or equivalent, my point is that I can't see why encrypting the data with such a CPU is inferior to drive side encryption. I'm looking forward to the article!

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