Samsung 840 EVO mSATA Review: 120, 250, 500, And 1000 GB, Tested

Results: File Copy Performance With Robocopy

Microsoft's Robocopy, a CLI directory replication command, gradually replaced the older xcopy. It's multi-threaded, has a ton of options, and generally outperforms vanilla Windows copy operations. Best of all, it's built right in to Redmond's operating system. Especially useful for network copy operations and backups, Robocopy doesn't stop to ask you one hundred questions while it copies over your music collection, either.

The reality of benchmarking file copy performance is that you need something fast to move data from and fast hardware to move it to. This is most important with SSDs. It doesn't matter if your drive can write sequentially at 500 MB/s if the source files are hosted on a USB 2.0-attached external hard drive. We're copying our test files from an Intel SSD DC S3700 to the drives in the chart below, taking source speed out of the equation (mostly). Moving to faster storage would increase the faster test disks' ultimate file copy performance. It begs the question though -- what is the point? Most users copying data from one source to another (in this case, a SSD) won't have the benefit of copying from a SSD RAID array or PCIe-based solid state storage, so relying on just one SSD as the source gives us the best case average.

There are 9065 files comprising the 16.2 GB payload. Some of the files are huge (up to 2 GB), while others are best described as tiny. On average, that's around 1.8 MB per file. The files are a mix of music, program, pictures, and random file types.

It's fair to say that this chart would look much different if we were copying from a hard drive to a SSD. Even if the disk drive's sequential throughput wasn't a bottleneck, it'd still choke on the smaller files. 

We aren't presented with many surprises. The big SSDs are fast; the little ones are still pretty quick. Samsung's 500 and 1000 GB models take second and third place, respectively. The 120 and 250 GB units are more modest in their performances, though still quite a bit faster than their 840 progenitors, despite the transition from 2x nm 64 Gb dies to 19 nm 128 Gb dies.

  • vaughn2k
    Now all we need is the price to drop, then I'll get one.. ;)
    Reply
  • blackmagnum
    Maybe it's time to upgrade the HD of an old working notebook to SSD! But will a Core2Duo processor bottleneck a SSD?
    Reply
  • jrharbort
    @blackmagnum: You don't have to worry about your processor being a bottleneck, but rather, your system's SATA interface. It is highly doubtful that your Core 2-based notebook (much like my own) has an m-sata slot, and the 2.5" bay for a HDD would have a SATAII port, not SATAIII. So the overall max read/write rates would be cut in half. But to answer your question in another way, tom's posted an article almost a year ago on the subject of upgrading older systems with an SSD: http://www.tomshardware.com/reviews/ssd-upgrade-sata-3gbps,3469.html
    Reply
  • spookyman
    @blackmagnum: You be glad to upgrade your hard drive to a SSD drive. Did it for my goddaughter's after she had a hard drive crash and it runs a lot faster then before.
    Reply
  • JohnnyLucky
    Interesting article. It coincides with the current shift from desktop pc's to mobile pc's.
    Reply
  • nekromobo
    But aren't we already moving to M.2. Why can't I buy Samsung XP941 :(
    Reply
  • pyro226
    "The latest version offers RAPID support to non-EVO drives like the 840 Pro."Got my hopes up there. The standard 840 series SSDs are NOT supported. The article didn't explicitly state they were, but what other drives (aside from the 840 Pro and EVO) have Rapid support? Perhaps "The latest version offers RAPID support to both EVO and 840 Pro SSDs." would be more accurate.
    Reply
  • LordConrad
    "This company has a track record of disrupting the markets it enters; now that it's focusing attention on smaller form factors with enthusiast-class hardware, it's only a matter of time before we start seeing M.2-based offerings as well."This is mainstream hardware, I don't know any enthusiats who will settle for drives with TLC NAND.
    Reply
  • lowguppy
    It is nice to see these finally available. I've been watching the Crucial m500 mSATA drive for a while, and the 480gb version frequently falls under $300 on NewEgg, which is competitive with 2.5" SSDs.
    Reply
  • RedJaron
    12750948 said:
    This is mainstream hardware, I don't know any enthusiats who will settle for drives with TLC NAND.
    "Enthusiast" to me doesn't automatically mean getting the fastest, biggest, bestest, craziest parts regardless of price. It also means people who put a lot more thought into their systems and thoroughly weigh all their options. MLC, TLC, or not, the fact remains that the EVO is a fast, reliable drive for a good price.

    Your argument sounds similar to, "I don't know any enthusiasts who will settle for LGA 1150 instead of LGA 2011," or "I don't know any enthusiasts that would settle for a non-K CPU."
    Reply