This page looks best with JavaScript enabled

SATA vs SAS vs NVMe Performance Breakdown

 ·  ☕ 3 min read  ·  ✍️ Chris Titus

This is a quick breakdown of the differences between SATA vs SAS vs NVMe. After looking at the performance below, you will be able to decide which one best suits your needs.

  • SATA (Serial Advanced Technology Advancement)
    * Most common
    * Least reliable
    * Slow
    * 5400 – 7200 RPM Hard Drives
    * Half duplex (Can’t read and write simultaneously)
    * 6 GB/s connection
    * Cheap (1 TB  SSD $150)
    • SAS (Serial Attached Storage)
      • Commonplace in data centers
      • Very reliable
        • Error checking is built-in
      • Fast
        • 15k RPM Hard Drives
        • Full Duplex (Simultaneous read and write)
        • 12 GB/s connection
      • Expensive (800 GB SSD $600) – Pretty much enterprise only
    • NVMe (Non-Volatile Memory Express)
      • Common in new PC builds, common in data center SANs for cache on tiered storage.
      • Reliable
      • Fastest
        • 16-32 GB/s connection when directly plugged into PCIe
        • 12 GB/s connection still applies when hot-swapped via SAS connection
        • Full Duplex
        • Higher Bandwidth (Able to process the most at one time)
      • Expensive (1 TB Residential $300-$400 | 1.2 TB Enterprise $1200)

No real surprises here but having it bullet-pointed makes the comparison very easy. I hope this helps those trying to decide on what to buy and typical performance you can expect from it.

nvmevssata-pic

SATA vs SAS vs NVMe | Performance Winner: NVMe

SATA vs SAS vs NVMe | Budget Winner: SATA

What about SAS? Well, in enterprise environments you see this very often with pretty much every tiered storage device having it. Most of what is on the market today is a mixture of SAS and NVMe for business. These hybrid drives are crazy expensive but give system administrators the ability to claim some of the speed from NVMe without purchasing entirely new devices. While this may seem trivial when you are talking thousands of dollars, this becomes a budget issue. SAS also has the error checking built into the interface, which in turn, gives greater reliability in theory. Personally, I think the future enterprise devices will have some type of new connector or housing that will make NVMe devices hot-swappable without the 12 GB/s SAS limitation. That said, we aren’t quite there yet, and the prevalence of SAS in enterprise space will continue.

By doing this you allow all traffic inbound to this computer, consequently, all outbound traffic is already allowed by default. Therefore, certain programs and services that depend on windows firewall can function properly. In conclusion, this is a far superior way of disabling the built-in firewall in windows without affecting other programs.

Contact Me

I live stream on Chris Titus Tech YouTube Channel every Friday at 10 AM CST and archive clips to Titus Tech Talk. I also regularly publish to christitus.com, but if you’d like to contact me directly or want to contribute to help keep these articles and videos being made consider joining the CTT members.

Two Memberships exist:

  • ChrisTitus.com Members Section (CC Only)
    • Full Archive of All Unlisted Live Streams
    • Direct Members Only Email
    • Monthly Members Only Video
    • Starting at $2 Per Month (100% of Proceeds goes to Chris Titus Tech)
  • YouTube Chris Titus Tech Membership (All Payments Accepted)
    • YouTube Emojis for Comments and Live Chat
    • YouTube Badges that changes based on membership time for comments and chat.
    • All YouTube comments are highlighted when I review comments daily.
    • Immediate Access to Full Live Streams
    • $4.99 Per Month (70% of the Proceeds goes to Chris Titus Tech)
Share on

Chris Titus
WRITTEN BY
Chris Titus
Tech Content Creator