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Samsung accidentally leaks details of its upcoming 980 Pro NVMe SSD



Enlarge / The 980 Pro offers up to 7,000 MB/sec throughput, on the right workloads—but you’ll need a PCIe 4.0 motherboard, a very fast CPU, and good system cooling to take advantage of it.

Everybody makes mistakes sometimes, and it looks like Samsung made one yesterday: the product page for its upcoming 980 Pro NVMe SSD went briefly online before being discovered by TechPowerUp and then getting yanked offline again.

The 980 Pro is a particularly interesting product, since it shakes up Samsung’s lineup in several ways. We’ve known since CES 2020 that it would be the company’s first—and likely the retail world’s first—PCIe 4.0 SSD.

The higher-bandwidth PCIe4 bus allows for a blistering throughput increase; the 980 Pro is rated by Samsung for up to 7000MB/sec of throughput, compared to the PCIe3 970 Pro’s 3500MB/sec. Unfortunately, the 980 Pro’s sharp increase in throughput comes with an equally sharp decrease in warranted write endurance.

980 Pro 970 Pro 970 Evo
Seq Read * Seq Write * Seq Read * Seq Write * Seq Read * Seq Write *
7000 MB/sec 5000 MB/sec 3500 MB/sec 2700 MB/sec 3400 MB/sec 2500 MB/sec
Write Endurance Write Endurance Write Endurance
600 TBW 1200 TBW 600 TBW

You should take these numbers with enormous grains of salt—besides being leaked, they’re all filtered through several layers of marketing shenanigans. For one thing, they’re in MB/sec, not MiB/sec—so lop 5 percent off the top. For another, they’re very deliberately listed in megabytes, not gigabytes, with the same potential confusion between 10^3 and 2^10—so another chunk comes off the top if you’re inclined to think of it in GiB/sec.

The 980 Pro’s 7000MB/sec really boils down to 6.5GiB/sec… and even that’s entirely up for grabs. The fine gray print further down the page says that results “may vary based on system hardware and configuration.” That’s a meaningful disclaimer—in our experience, NVMe M.2 drives have a distinct tendency to overheat and thermally regulate. You’ll also need a mean CPU to keep up with 6.5GiB/sec throughput without bottlenecking.

What we can reasonably expect is significantly increased performance, with—unfortunately—significantly decreased long-term lifespan. To understand why the write endurance—and thus effective lifespan of the drive—dropped so sharply, we’ll need to take a peek under the hood.

Understanding NAND terminology

In order to understand the 980 Pro’s change in endurance, you need to understand at least a little bit about the NAND flash-storage medium used by most SSDs. NAND flash comes in SLC, MLC, TLC, and QLC varieties—with the leading initial standing for Single, Multi, Tri, and Quad, respectively. Unpacking this a bit further, what we’re really talking about is the number of bits stored by each cell.

SLC is the fastest, highest write endurance and most expensive NAND cell type. Each cell only stores a single bit—but this means there are only two meaningful voltage levels per cell to read or write. With charge levels effectively being simply “on” or “off,” SLC media can tolerate plenty of sloppiness in both reading and writing of the cells before any errors occur that might require retries or even result in data loss.

MLC media is a misleading term, and Samsung’s marketing department leans heavily on that fact in its spec sheets above. Although MLC literally just means “Multi-Level Cell,” in common industry use it specifically refers to only two bits per cell. This means each cell must have four distinguishable voltage states, corresponding to numbers 0 through 3. This makes for a cheaper drive at the same capacity, since you only need half the cells a comparable drive made of SLC would—but it’s a bit slower to read or write values, and sloppiness in charge state as the drive’s write endurance decreases hits you correspondingly faster.

Now that you’ve got the pattern, TLC means three bits per cell and eight distinguishable voltages corresponding to values 0 through 7. QLC—as seen in Samsung’s big, cheap QVO drives—goes one step further than that, with 16 distinguishable voltages corresponding to values 0-15.

With each additional bit you ask an individual cell to store, you need more precision (and less speed) in both reading and writing the cell state—and less write endurance available before the cell gets too sloppy to reliably charge to and maintain a given voltage with the necessary precision.

An architectural sea change

Until now, Samsung’s retail SSD line has been simple to understand, if you understand the basics of NAND storage. The Pro line are MLC drives—two bits per cell—with higher cost but greater speed and write endurance. The EVO line are TLC drives—cheaper, but slower and less durable. The QVO are QLC drives, and most people should likely avoid them—they aren’t enormously cheaper than the TLC EVOs, but they have significant penalties to both performance and endurance.

So far, the thing most likely to confuse consumers is that the EVO line doesn’t look any slower than the Pro line from reading the spec sheets. This is because the write tests Samsung uses to generate these numbers aren’t particularly prolonged, and they don’t burn through the SLC cache onboard the EVO. If you have a long-running write workload that fills the cache, you have to fall back to committing writes directly to the TLC—which can feel like falling off a cliff, particularly on smaller-capacity SSDs.

With the 970 Pro, Samsung has moved from two-bit MLC down to cheaper, lower-endurance TLC flash like the Evo line uses. There’s not enough information in the leaked product page to be certain what changes may have been made to the SLC cache, which it refers to as the “Intelligent Turbowrite Region.” The fine print on the performance numbers tells us that the write performance for the 1TB 980 Pro drops to 2,000 MB/sec “after Intelligent Turbo Write Region.” But it doesn’t specify how large that region is.

Opinion: Does lower write endurance matter?

For most consumers, the lower write endurance of the 980 Pro won’t likely matter too much—600TB written is a lot of data, and a typical desktop user or gamer is unlikely to hit that number within a typical five- to seven-year consumer-PC life cycle.

What bothers me here is that typical desktop users and gamers, in my experience, weren’t often buying Pro SSDs in the first place—they were buying EVOs to save a few bucks. Samsung’s spec sheets claimed almost identical performance between the two lines, so the cheaper EVO seemed like an easy call to make for most end users.

The usual Pro customer tends to be someone who is specifically looking not only for higher sustained performance but much higher write endurance. Sometimes the extra write endurance is just a hedge against longer-than-usual PC life cycles. If you tend to keep your PC running for 10 years instead of five, burning an extra hundred bucks or so on a Pro can mean not having to refresh suddenly glacial storage around the six- or seven-year mark.

But longer-lived PCs aren’t the only application for high-endurance SSDs. If you plan to run databases or virtual machines on an SSD, you can rack up enormously larger daily write numbers than a typical user or gamer would see—and those can burn through the endurance on a purely consumer-grade SSD like the EVO, or the new Pro, in pretty short order. In extreme cases, I’ve seen busy database and VM servers burn out consumer-grade SSDs like the EVO in under a year.

Again, none of this is likely to matter to a “typical desktop user.” But this sudden shift in the meaning of a brand can hurt a lot more users than the vendor expects—as witness the months-long fiasco Western Digital endured, when it changed the meaning of the “Red” branding on one of its conventional hard drive lines.

The silver lining to this rather gloomy cloud is that exhausting the write endurance of an SSD results in a pretty safe failure mode—I have yet to see an SSD lose data due to exhausted write endurance. As the drive approaches the end of its life, it gets slower—user-visibly slower—to the point that it’s incredibly unlikely for the drive not to be replaced before it actually fails.

If you’re a typical desktop user or gamer, you should be able to buy an EVO—or the newer, TLC-based Pro—with confidence. You’re unlikely to exhaust the write endurance on a 1TB SSD before five years, and it’s very unlikely to eat your data even if you do. But if you’ve been in the habit of buying MLC SSDs and know what you’ve been paying for, caveat emptor.

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Lenovo gives up on its dream of Android gaming phones



Android manufacturers occasionally try to push this idea of a “gaming smartphone”—usually, these companies try to extend the “PC gamer” design motif to smartphones, with RGB LEDs and aggressive marketing. Since Android games are mostly casual pay-to-win tap fests, though, we often have to ask, does anyone want a gaming smartphone? If you’re Lenovo, the answer is apparently “no,” as Android Authority reports Lenovo is killing the “Legion” gaming phone business.

The site quoted a Lenovo spokesperson:

Lenovo is discontinuing its Android-based Legion mobile gaming phones as part of a wider business transformation and gaming portfolio consolidation. As a leader in gaming devices and solutions, Lenovo is committed to advancing the gaming category across form factors, as well as focusing on where it can bring the most value to the global gaming community.

While gaming phones often seem like a product without a market, we are a bit sad to see Lenovo pack it in since the Lenovo Legion Phone Duel 2 was the most extreme version of the idea. That phone had what must have been the most powerful cooling system ever fitted to an Android phone, with two internal cooling fans, copper heat pipes, and loads of graphite pads. While most passively cooled Android phones would quickly throttle in a graphics-intensive game, this was one of the rare phones with what looked like sustainable cooling. Of course, it didn’t fit into a normal smartphone body—the phone’s center (in landscape) was about twice as thick as normal, but it was a neat product.

Lenovo packed a lot of other interesting additions into its gaming phone: it had six touch-sensitive buttons on the back: four on the top edge of the phone, replicating L1/R1 L2/R2 design of console controllers, and two on the back of the phone for your middle fingers. It also had two USB-C ports: one in the usual location, but since that would be blocked during landscape gaming, a second port was on the side of the phone, so it would point downward during landscape gaming. You could charge from either port, but you could also charge with both ports simultaneously, which Lenovo called 90 W “ultra-fast double charging.” The included charger had two USB ports on it.

Lenovo was right to focus on cooling because while PC gaming computers can prove their worth with premium parts, there’s no such thing as “better than flagship” parts for smartphones. The Duel 2 had the same Snapdragon 888 SoC as every other flagship device, but at least it could run without throttling. The other things that exist for PC gaming and don’t exist for Android are games, or at least games that would encourage buying enthusiast-grade hardware. Even if you found a faster-than-normal phone, there would be few apps that could take advantage of it other than an emulator.

Listing image by Lenovo

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After two years, Autodesk Maya and AutoCAD become Apple Silicon-native



Enlarge / A woman uses AutoCAD on a MacBook Pro in this promotional image from Autodesk.

It has been two years and four months since the first Apple Silicon Mac hit the market, and now Autodesk has finally updated some of its massively popular professional applications (AutoCAD and Maya) to run natively on M1 and M2 chips.

The availability of AutoCAD for Mac 2024 was announced in a blog post on Autodesk’s website on March 28. Like other major AutoCAD updates, it adds new features like expanded automation tools and easier workflows, but the announcement that “for the first time, AutoCAD for Mac 2024 and AutoCAD LT for Mac 2024 now run natively on both Intel and Apple Silicon architectures, including M1 and M2 chips in the M-series chips” is clearly the headlining feature.

Autodesk claims that Apple Silicon support “can increase overall performance by up to two times” compared to the 2023 version of AutoCAD.

AutoCAD is widely used in various industries and trades, including architecture, city planning, and industrial design.

A day later, on March 29, Autodesk revealed the 2024 update for Maya, its 3D modeling software chiefly used in game development, film production, and visual effects. Maya 2024 brings native Apple Silicon support in addition to a slew of new features, including the LookDevX material editor, Hydra support, and so on.

But in contrast to many other makers of widespread professional software in similar industries, such as Adobe and Unity, Autodesk’s efforts to support Apple Silicon—which were announced two years ago—have been ongoing for an interminably long time. Even open source Maya competitor Blender beat Autodesk to the punch.

The Intel versions of both Maya and AutoCAD worked OK in Rosetta, but some Mac users have become understandably frustrated over the past couple of years, and Autodesk never really clarified why it was taking so long.

Nonetheless, it’s here now. We were able to download Maya 2024 for no additional charge on an existing subscription and confirmed that it is running as an Apple Silicon app on an M2 Max-equipped MacBook Pro.

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Apple will host WWDC 2023 in person and online June 5 through June 9



Enlarge / Apple’s first promotional image for WWDC 2023.


Apple will host its 34th annual Worldwide Developers Conference at its Cupertino, California, headquarters from Monday, June 5 through Friday, June 9, the company announced on Wednesday.

The conference will kick off with “a special all-day event,” inclusive of the customary keynote presentation and the platform State of the Union talks. The language on Apple’s website suggests that like last year, some or all of those will be presented in prerecorded video form rather than as a live on-stage presentation.

After that first day, Apple will likely host various panels on how developers can work with the company’s developer toolkits and APIs to support new and old features across the various Apple platforms.

Members of Apple’s developer program who want to attend essentially sign up for a lottery to see if they are chosen, as the event cannot host enough people in person to meet demand. That said, the entire conference will also be available online to developers. In either case, the conference is free.

The main purpose of the WWDC keynote each year is usually to announce and explain new features coming to the next versions of Apple’s various platform operating systems—in this case, iOS 17, iPadOS 17, tvOS 17, watchOS 10, and macOS 14.

That’s almost sure to be the case this year as well. Sometimes Apple announces new hardware or consumer services at WWDC, too—but not always.

There have been many reports from reliable sources over the past few months that Apple hopes to provide a first look at its long-delayed mixed-reality headset and related software at this WWDC. If so, we expect that to be a big part of the keynote.

Even if that’s the case, the headset probably won’t be released this June. It’s much more likely that Apple will outline what to expect from a release further down the road (possibly in September alongside the new flagship iPhones, but maybe even later) so that developers can begin work creating applications, games, and experiences for the new platform.

WWDC also coincides with Apple’s Swift Student Challenge, a coding competition for students. The deadline to apply for that challenge is April 19.

Ars Technica will cover the announcements as they come in on the day of the keynote.

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