Final Words

The Intel SSD 540s is their first entry level consumer SSD in quite a while, and our first look at Silicon Motion's new SM2258 controller. It's a little surprising to see Intel being an early adopter of a third-party SSD controller after their SandForce-based drives spent so much time going through Intel's QA, but the SM2258 is not a radical departure from Silicon Motion's earlier controllers, which have a pretty good track record for reliability.

Intel's use of the same 16nm SK Hynix TLC NAND as in the ADATA Premier SP550 allowed us to make a direct comparison of the SM2258 controller against the preceding SM2256, and the Crucial BX200 provides another point of comparison with Micron's 16nm TLC instead. The 540s is much better than the BX200 in every way, but that's not saying much. Against the SP550, the Intel 540s was not able to score a clear win. On most synthetic benchmarks the 540s improved performance over the SM2256 drives, mitigating their most glaring weaknesses and occasionally rising above the field of budget TLC drives in general. These improvements did not translate into a significant advantage over the SP550 on our real-world AnandTech Storage Bench tests. The ADATA SP550 is still faster overall for realistic workloads with bursts of I/O, even though it is slower under the sustained load of synthetic benchmarks.

The wide disparity in performance between the Crucial BX200 and ADATA SP550 showed just how much firmware tuning can affect drive performance. I think it's likely that later this year we'll see a more refined SM2258 drive, perhaps even on planar TLC before 3D NAND is cheap enough.

Budget SSD Retail Price Comparison
Capacity 120-128GB 240-256GB 480-512GB 960-1024GB
Intel SSD 540s 2.5" $51.95 (43¢/GB) $93.91 (39¢/GB) $149.99 (31¢/GB) $304.96 (30¢/GB)
Intel SSD 540s M.2 $49.95 (42¢/GB) $91.77 (38¢/GB) $155.65 (32¢/GB) $305.29 (31¢/GB)
ADATA SP550 $37.88 (32¢/GB) $57.99 (24¢/GB) $107.99 (22¢/GB) $205.99 (21¢/GB)
OCZ TR150 $37.99 (32¢/GB) $59.99 (25¢/GB) $99.95 (21¢/GB) $199.99 (21¢/GB)
SanDisk X400 $49.59 (39¢/GB) $80.19 (31¢/GB) $126.23 (25¢/GB) $237.99 (23¢/GB)

Against the wider field of competitors, the Intel 540s is clearly an entry-level SSD, intended for light workloads. It cannot keep pace with SanDisk's X400 or even the current generation of Phison S10-based drives like the Toshiba OCZ TR150 (formerly Trion 150). The ADATA SP550 has held on to a place in the market by usually being one of the cheapest drives available, but at the moment it is mostly tied with the TR150 on price, making the latter a better purchase given its better performance.

The current retail pricing of the Intel SSD 540s makes my recommendation quite simple: don't buy. The 180GB and 360GB models are only a few dollars cheaper than the next size up, and the four standard sized models are priced above many MLC drives. The OCZ TR150 provides better performance for a far lower price. The SanDisk X400 provides much better performance, the same 5-year warranty period of the 540s, and M.2 models for a significantly lower price. ADATA has also recently announced M.2 versions of the SP550, which will probably be only a little more expensive than the 2.5" drives, providing a very welcome cheap M.2 option.

ATTO, AS-SSD & Idle Power Consumption
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  • Notmyusualid - Thursday, June 23, 2016 - link

    Ya saved me from writing it...
  • shelbystripes - Thursday, June 23, 2016 - link

    Intel is considered a reliable brand to OEM PC makers and other bulk purchasers. Offering a low-end part means capturing business that might go to a second-tier manufacturer. For builders with a use case where any modern SSD is fast enough, and you care about reliability without breaking the bank, this will be the #1 choice. You get the Intel name and the things INCLUDED with that, like solid customer support and timely firmware updates, at a lower price point.

    Nobody buying this is expecting it to be a performance part. Intel is the company that sold Celerons with no L2 cache, that sells cut-down Atom CPUs and Core CPUs under the same Pentium brand name. Intel doesn't always mean performance. It does mean confidence that what you're buying actually works, though.
  • BurntMyBacon - Friday, June 24, 2016 - link

    @shelbystripes: "Offering a low-end part means capturing business that might go to a second-tier manufacturer. For builders with a use case where any modern SSD is fast enough, and you care about reliability without breaking the bank, this will be the #1 choice."

    You know, Intel used to cater to this market, ... , with their 300 series drives. Interestingly, the relative performance of this drive matches up to where their 300 series used to slot in as well. Why is this not a 300 series drive?
  • vladx - Friday, June 24, 2016 - link

    My tablet running an Atom quad-core works great. To compare this joke of a SSD from Intel to that is a fucking joke.
  • plopke - Thursday, June 23, 2016 - link

    Won't the 540 be shortlived? Shouldn't we be seeing 3d nand drives of intel soon followed by optane?
    https://i0.wp.com/benchlife.info/wp-content/upload...
  • A5 - Thursday, June 23, 2016 - link

    This is for a different market segment.
  • Billy Tallis - Thursday, June 23, 2016 - link

    That roadmap shows the 540s sticking around at least through Q1 2017, and merely being joined by some Optane and 3D TLC NVMe drives. The actual replacement of the 540s is at an indefinite point in the future.

    The determining factor will be how long it takes 3D NAND to get cheap enough to displace 15/16nm TLC. I don't think that will be happening any time soon; even Samsung apparently can't pull it off yet, since they introduced the 750 EVO.
  • Mobile-Dom - Thursday, June 23, 2016 - link

    IIRC Samsung used planar NAND in the 750 because they wanted lower capacity without the performance degradation, as by using the high layered 3D NAND they used fewer packages resulting in worse performance for drives that had 1 or 2 packages for the entire SSD
  • extide - Thursday, June 23, 2016 - link

    Nah, both their planar 15/16nm and their 3D NAND use 128Gb dies -- so same amount of dies in either product. It's purely a cost thing. It will probably take until we get into the 100+ layers of 3D NAND for it to be competitive, cost wise, with that 15/16nm planar TLC.
  • Billy Tallis - Thursday, June 23, 2016 - link

    That's what they said at first, but then they introduced a 500GB 750 EVO while the 850 EVOs on the market are still using the 32-layer VNAND.

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