Time To Upgrade: 10 SSDs Between 240 And 256 GB, Rounded Up

By Andrew Ku
published

Over the past year, we've seen the cost per gigabyte of solid-state storage drop in a major way. Once upon a time, we shopped for affordable 60 and 80 GB drives. Now we really want 256 GB drives in our desktops. Meet the last 10 models to land in our lab.

Adata XPG SX900 And Premiere Pro SP900

Adata's first SSDs equipped with second-gen SandForce controllers belonged to the S511 family. They were armed with synchronous ONFi-compatible NAND and configured for 7% over-provisioning.

A few months back, however, SandForce started giving its partners a way to disable over-provisioning altogether, thereby increasing user-accessible space. If a drive included 256 GB of capacity, the controller company basically made it possible for vendors to give their customers access to all of that space.

Adata is one of the companies to take SandForce up on its offer, creating the SX910, SX900, and SP900 SSDs. As we see so often, differentiation happens through varied NAND interfaces and technologies. The SP900 is Adata's budget-oriented model, featuring 25 nm asynchronous NAND. The SX900 and SX910 enjoy faster 25 nm synchronous memory.

The SX900 and SP900 both come with a standard three-year warranty. The SX910 is identical to the SX900, but it carries a five-year warranty. You probably won't see much of the SX910 in the U.S., however, due to its higher price tag.

In 4 KB random reads, 4 KB random writes, and 128 KB sequential reads, the performance we see from Adata's SX900 and SP900 drives is nearly identical. Strange, right? We know from our testing that, at 120/128 GB, there is a measurable difference. But at 240/256 GB, there is enough NAND on this drive to saturate every channel, despite the SP900's slower memory interface (which really isn't all that slow to begin with).

We see the largest gap between drives in our 128 KB sequential write test. When they're operating on compressible data, both SSDs achieve great performance. Limiting the workload to incompressible data changes this, though, and the SX900 is about 60 MB/s faster from a queue depth of two, onward.

Andrew Ku
65 Comments Comment from the forums
  • mayankleoboy1
    get the cheapest, biggest you possibly can. Benchmarks exaggerate the difference between SSD's.
    Reply
  • A Bad Day
    I agree. Unless if you're buying a glorified USB stick (there is a 128 GB stick) or an SSD with an OC'ed processor, the main factor that consumers should be concerned about is price per gigabyte.
    Reply
  • A Bad Day
    EDIT: And reliability.
    "In order to install a new firmware that significantly boost performance and stability, you must backup all of your data because it will be wiped."
    Reply
  • Tanquen
    Yea, it’s getting a little out of hand. For 90% of the things 90% of people do on their PC, 200MBs+ read and write speeds just don’t mean much. There are too many other bottle necks going on. I messed around with a RAM drive using most of my 64GB of RAM and the read and write speeds are fun to test (4000MBs or so) but games and VMware sessions I launched from the RAM disc saw no noticeable improvement in launch times or anything else. Same goes for my 830 SSD drive. It’s fast but games and software I use for SCADA development just don’t see any real benefit. They are cool if you want to open 10 sessions of MS Word and 15 Internet Explorer and a bunch of other stuff at the same time but if you just open one instance of Excel and use it and the Photo Shop and use it and then a web browser and use it, you’ll never really see the difference. You have to benchmark it or have two PCs setting right next to each other to see that something started or saved a split second faster.

    At least with my 64GB of RAM and actually get 64GB of RAM unlike HDs and SSDs.
    Reply
  • tomfreak
    unless the sandforce drive is priced a lot cheaper than the similar capacity non-sandforce SDD. I always choose the non-sandforce SSD. 16GB is a big deal in SSD.
    Reply
  • stoogie
    until theres affordable 512gb ssd's then i wont get 1, my c drive is 360gb~ and i have 11tb
    Reply
  • sna
    TanquenYea, it’s getting a little out of hand. For 90% of the things 90% of people do on their PC, 200MBs+ read and write speeds just don’t mean much. There are too many other bottle necks going on. I messed around with a RAM drive using most of my 64GB of RAM and the read and write speeds are fun to test (4000MBs or so) but games and VMware sessions I launched from the RAM disc saw no noticeable improvement in launch times or anything else. Same goes for my 830 SSD drive. It’s fast but games and software I use for SCADA development just don’t see any real benefit. They are cool if you want to open 10 sessions of MS Word and 15 Internet Explorer and a bunch of other stuff at the same time but if you just open one instance of Excel and use it and the Photo Shop and use it and then a web browser and use it, you’ll never really see the difference. You have to benchmark it or have two PCs setting right next to each other to see that something started or saved a split second faster.At least with my 64GB of RAM and actually get 64GB of RAM unlike HDs and SSDs.
    to see the difference you will need to put the system itself on RAM Disk. not only the installed programs.


    Reply
  • Where are Samsung SSDs ? Especialy model Samsung 830- 256GB which is on sale in Europe for 160-180€. That is best offer, reliable, faster than basic 840. Get some MB with Z77 chipset and you can RAID them with TRIM support. 2x256 for 330€ is so awesome with 1035Mb/s read in RAID 0. I tested it on Gigabyte Z77-UP4 TH, its a shame that there are only 2x6Gbit ports so 1x840 Pro + 2x830 in RAID 0 is impossible on this MB without SATA2 speed loss on remaining SATA ports. This was my scenario for fast gaming /500GB Steam inventory/ : Raptor, later RAID 0 HDDs, later Velociraptor, next 128GB SSD + 1GB Samsung HDD cached by OCZ Synapse 64GB /totaly unreliable/. So I ended up with 1x boot SSD + 2x SSD in RAID 0. Maybe I am little bit offtopic but any ideas how to "live" with increased Steam inventory and keep it fast enough ? Steamover SW is not reliable for me. Thanks for nice article.
    Reply
  • ojas
    When Thomas, Don, and Paul prioritize the parts for their quarterly System Builder Marathon configurations (the next of which is coming soon, by the way)
    Wait, SBMs are fine, but where oh where went BestConfigs?
    Reply
  • -Fran-
    I went for a Vertex4 and placed it in my notebook. What a boost. I'd say it also helped improve battery life.

    For a Desktop, I don't have a particular use TBH. I have a RAID0 with 2x512GB WD's and it works amazingly good (and fast as well). I'd say, for desktops, SSDs are still not viable because of price, unless you clench your teeth with loading times or such, hahaha.

    Cheers!
    Reply