WD_BLACK SN850X 4TB M.2 2280 Game Drive PCIe Gen4 NVMe up to 7300 MB/s

Product Information

Before you open your wallet, be sure to prepare for this drive: it requires a heatsink to reach its highest levels of performance. Unlike with the T700, Team does not offer a heatsink version of the Z540. The heatsink requirement mostly precludes it from use in a laptop, and you can choose from less expensive options for the PlayStation 5. In fact, there are many solid Gen 4 alternatives that are much more budget-friendly without some of the Z540’s downsides, like its poor power efficiency. But if you want the very best performance right now, look no further. In many other regards, this X model is a dead ringer for the SN850. We’re talking four lanes of PCIe Gen 4 connectivity in the now ubiquitous M.2 2280 form factor. But the 1TB model reviewed here is now the entry-level option. There’s no longer a 512GB model. What’s more, WD’s in-house controller chip, provided by compatriot SanDisk, has been revised, though detailed specifics aren't provided.

Of course, SK Hynix isn't new to this space, but the new P41 is arguably the brand's first tilt at a truly high-end M.2 drive. The old SK Hynix Gold P31 was a bit of a clunky old thing, limited as it was to the PCIe 3.0 interface and a controller chip with a mere four memory channels. The new Platinum P41? It's got it all. SATA is slowest: SATA isn't as fast as an M.2 PCIe or a PCIe add-in card, but the majority of desktops and many laptops support 2.5-inch SATA drives, and many doing typical mainstream tasks users won't notice the difference between a good recent SATA drive and a faster PCIe model. It's in the real-world tests where the SN770 really struts its stuff. You'd be hard-pushed to tell the difference between this drive and much faster offerings in most day-to-day operations. Given this is the cheaper drive right now, that counts for a lot. The SN850 is the better drive if you need better performance, but you will pay considerably more. However, from an engineering point of view, SSDs didn't needto be that big. The enclosure an SSD comes in has a lot of dead space inside. It's designed in that 2.5-inch size and shape to make the drive fit into those existing bays. So when mobile-device designers, challenged with slimming down laptops and tablets, reassessed this issue, the consensus was clear: The bulky 2.5-inch form factor, eventually, would have to go.

The WD Black SN850X is one of the fastest drives around for gaming.

The Team MP44 is part of the vanguard for new and better DRAM-less SSDs. Newer controllers and flash are letting budget/value drives push the limits of the PCIe 4.0 interface while providing high capacities without making compromises. They can have the endurance and performance of TLC and the high power efficiency of four-channel, DRAM-less controllers, all without extra cost. Less power means less heat, and these drives are also designed to be single-sided. That combination makes the MP44 perfect for laptops. Finally, on the speeds and feeds, this 2TB drive is rated at 1,200TB for write endurance. As it happens, that's precisely the same as the new Samsung 990 Pro 2TB. But it's also far from some other competing M.2 SSDs.

It's a highly competitive SSD with great performance and an attractive design and offers good value for money. The main way it achieves this is by being a DRAM-less SSD drive. This saves a big chunk of the manufacturer's bill of materials, and thanks to advances in the latest controllers, it can be surprising how little impact this has on performance. Such drives are slower, don't get me wrong, but this new SN770 still quotes read and writes of 5,150MB/s and 4,900MB/s, respectively. Not bad. If you don't have any NVMe slots, you can buy expansion add-in cards that will offer one or more NVMe slots in exchange for one of your PCIe slots on your motherboard, just be aware that these are at an added cost and take up precious room. Can you put a PCIe 4.0 SSD in a 3.0 slot? In other words, while the speed freak in me loves what NVMe brings to the table, I recognize that in practice, it's usually not that noticeable. If you're looking to get the most from your money when it comes time to build a gaming PC, good SATA SSDs remain an excellent option, with prices now falling below 10 cents per GB.has become a more attractive capacity point for SSDs as time has gone on. While there are now many options available, most come with compromises of one sort or another. You may have to settle for QLC, a weaker controller, no DRAM, unreliable hardware, etc. This is not always a big deal, especially if the drive is intended to be a secondary gaming drive. In the PlayStation 5, however, extra cooling is beneficial, so it’s convenient to have a heatsink option available. At the same time, laptops favor bare drives and especially single-sided drives, the latter of which have been very rare with TLC until recently. We actually like these because often, you often get a robust heat sink on the M.2 drive. Some PCI Express-bus M.2 SSDs can run hot under sustained read/write tasks and throttle their speed. That said, unless you're running a server or something similar, where a drive is constantly getting hammered with reads and writes, that's usually not something you have to worry about. That's because many of these drives are so fast, they get their transfer duties done before they have a chance to get all that hot. It's great if your desktop system can handle a PCIe 5.0 drive, but they are still new and expensive, so they aren't a requirement: For example, the PCIe 4.0 Samsung 990 Pro is our current choice for the best SSD overall, and the best SSD for gaming. This drive is rated for 7,450 / 6,900 MBps of sequential read/write throughput and 1.2 / 1.55 million read/write IOPS. That means less time waiting for game levels to load or videos to transcode, not to mention a snappier experience in Windows. PCIe 5.0 SSDs should exceed 10,000MB/s and onwards up to their theoretical limit around 16,000MB/s. But this only matters if you can fit an NVMe SSD in your machine. Can I fit an NVMe SSD on my motherboard?

It's also pretty speedy in random workloads, which will make for a snappier system. It comes in at 75MB/s read and 291MB/s, which is in the mix with some of the faster Gen4 and first-wave Gen5 drives we've tested. DirectStorage sure sounds as that there will be some improvement, albeit assuming you aren't running GPU at full load already, as DirectStorage apparently works mainly at the premise of taking some workload from the CPU and giving it to the GPU, such as to decompress files that get loaded in when walking to a new area in an open-world game. And for current-gen gaming, even slower NVMe SSDs sure are plenty fast. The Intel 670p is an older driver, but it is also a proven budget option that is often on steep sale. It’s best to grab it at 1TB or 2TB, as the 512GB model is slower with a smaller pSLC cache. The drive has DRAM, which is nice, and it has the fastest QLC on the market, even now. Performance outside of the cache does not suffer as much as a consequence. Right now, PCIe 4.0 is the go-to PCIe generation. That's because it offers a high speed at a reasonable cost. The newest SSDs on the market offer PCIe 5.0 capability, which doubles the theoretical bandwidth an SSD can run at. However, these are few and far between and awfully expensive. Also the first drives of any PCIe generation tend to end up much slower than what that generation is truly capable of.

South Korean memory-chip maker SK Hynix is a relative newcomer to the consumer solid-state drive market, but you would never know that based on its first offerings. The SK Hynix Platinum P41, a PCI Express 4.0 NVMe M.2 SSD, is its best yet. It dominated our PCMark 10 and 3DMark Storage benchmark testing, setting several new records in the process. The P41 supports 256-bit AES hardware-based encryption. SK Hynix provides a clone utility tool, the SK Hynix System Migration Utility, for its SSDs, in addition to Easy Drive Manager software, which lets you see detailed information on drive health, run diagnostics, and erase the drive. And the P41 can be had for a very reasonable price in its 1TB and 2TB capacities. Who It's For The ADATA XPG Spectrix S40 is an unapologetically bright RGB-lit PCIe 3.0 NVMe M.2 SSD that blings up your PC. Its 4K read and write speeds should keep most gamers happy, too. The ADATA XPG Spectrix S40G carries some respectable wins out of its duel with other competing drives we've tested, and it looked great doing it. Early examples of the latest generation of M.2 drives, using the PCI Express 5.0 bus, also come in the Type-2280 format, but it's expected that some PCIe 5.0 slots on new motherboards will be built to support the larger Type-25110 format (25mm by 110mm), so we may well see PCIe 5.0 SSDs with these dimensions as well. PCIe 5 drives are capable of tremendous throughput speeds (in excess of 10,000MBps) that should generate abundant heat, and the SSDs we have seen so far come with substantial built-in heatsinks.

The NVMe, or Non-Volatile Memory Express interface, has been designed specifically with solid state drives in mind. In contrast, SATA, the previous interface in charge, was built to cater to most HDDs. The thought is, at the time, that no storage would ever need to exceed its lofty max bandwidth. To the surprise of a few, new storage mediums such as solid state absolutely blaze past SATA's max bandwidth, and so a new protocol in NVMe was born. The XS70 is priced well for a high-performance 2TB SSD, but there's fierce competition from other third-party SSD makers in this price range.The Silicon Power XS70 2TB SSD is a 2280 (80mm length) M.2 PCIe NVMe drive. It combines Micron 176-Layer TLC NAND with a Phison PS5018-E18 controller and 2GB of DDR4 RAM. That combination is common to many of the best SSDs, including the highly regarded Seagate FireCuda 530 and Kingston KC3000.If you're copying a game from one drive to another or validating game files in Steam, faster NVMe drives make a difference. They can also shave off a second or two when it comes time to load a game level, but the more significant difference is against hard drives, where even a slower SATA SSD is much faster. Go beyond a certain point, and all SSDs start to feel similar. All of this leaves the minor matter of how this drive actually performs. When it comes to peak sequential throughput, the Platinum P41 is basically as fast as anything else out there, bar a few rounding errors. OK, the Samsung 990 Pro is a bit faster at 7,462MB/s for reads to the P41's 7,375MB/s. But, honestly, it's inconsequential. The same goes for writes, where almost all the top drives will do just under 6.9GB/s. That's not a bad thing. Especially in the case of laptops, an older machine might supportonlyM.2 SATA-bus SSDs, and that will be the boundary of your upgrade path...end of story. As a result, the only reasons you'd upgrade the drive, in that situation, would be to get more capacity, or if the old one failed. The SK hynix Gold P31 is still the gold standard for laptop SSDs, especially as it has DRAM, but it’s limited to PCIe 3.0 bandwidth, isn’t always available, and is limited to 2TB of capacity. The MP44 can get twice the bandwidth, but even in a 3.0 slot, it is inexpensive for 4TB and even has an 8TB option. Other alternatives, like the Crucial P3 Plus or Corsair MP600 Core XT, are slower and use QLC. The heatsink found on the Addlink A93 and other SSDs preclude them from laptop use and can add a little cost. Otherwise, the MP44 will have some competition at lower capacities, but it is worth a look if you can find it at the right price.