Best PCIe 4.0 SSDs 2023: Up your storage game

The WD Black SN850X is a screaming-fast drive and ranks right up next to the FireCuda 530 at the top in terms of speed. The reason we chose the WD Black SN850X at the best PCIe 4.0 is that it offers better value for the money—not only does it give you the same great speed as the FireCuda, but it does so at a lower price per GB.

Also, in terms of overall performance, the SN850X stands out with its excellent real-world transfer rates and outstanding random write performance. In the crowded field of great PCIe 4.0 SSDs, the WD Black SN850X holds it own at the top despite stiff competition.

The FireCuda 530 is a fast drive. We’re talking The Fast and the Furious hit the NOS kind of fast. It’s still the only drive to write our 450GB test file in less than 200 seconds. Not only that, but it is the fastest drive in both synthetic benchmarks as well as real-world transfers. It also comes with a very high TBW longevity rating, which means you can write more for longer at those breakneck speeds.

The only reason it doesn’t take our top spot is that it’s a bit pricey compared to the WD Black SN850X which comes close to the FireCuda’s speed. Still, if you’re main concern is speed and you have some money to burn, the extra cash will give it to you in droves.

Now with the very first signs of PCIe 5.0 drives coming to market, we’re finally starting to see companies offering budget PCIe 4.0 NVMe drives at compelling prices. The best of the affordable bunch? The WD Blue SN580 NVMe SSD. At just $50 for a 1TB model at the time of writing you can get your hands on the excellent SN580—you won’t likely find any PCIe 4.0 drives with storage that cheap. And even with the low price you won’t be sacrificing any performance here either. In our testing, the SN580 turned out both stellar benchmark and real-world results. Admittedly, it slowed down considerably in the large 450GB transfer test, but seeing as how it’s unlikely anyone will write that much contiguous data it likely doesn’t matter. When all is said and done, the SN580 is a super-affordable wonderfully high-performing PCIe 4.0 SSD. It simply can’t be beat at this price point.

If you don’t need a 1TB capacity drive like the Crucial P3 Plus above, or you’re just looking to get your hands on a blazing-fast PCIe 4.0 for as little money as possible then the 512GB Adata Legend 850 is worth considering. For only $50 at the time of this writing, you can get the solid Legend 850. The drive scored very well in synthetic benchmark numbers for read scores, and in our real-world 48GB reading and writing test, it scored better than a lot of its peers. The 512GB capacity probably isn’t enough to be the main drive in a high-end gaming or content creation PC, but for the average budget gaming PC or laptop it would be a solid foundation or great upgrade.

In the past, you were out of luck if you wanted to upgrade your storage in a smaller-sized device such as a handheld gaming console where the longer 2280 NVMe SSDs wouldn’t fit. Luckily, Sabrent has set out to change all of that with its line of Rocket half-sized 2230 small form-factor SSDs, and its latest Rocket Q4 is our favorite. It comes with up to 2TB of capacity and shockingly excellent real-world performance. Its unique feature is that it’s only 30mm long, meaning you’re able to use it in small devices such as a Steam Deck.

The Rocket drive has great everyday performance and truly impressive real-world transfer speed. During our testing, it cruised through the 48GB and 450GB transfer tests, beating out other zippy full-sized PCIe 4.0 drives. While the Rocket Q4 provides decent enough capacity-to-cost, if your device is able to handle the longer, standard-sized 2280 drives, you’ll likely have more options to choose from and might be able to find even better price-for-performance. Regardless, we love this compact SSD and the Sabrent Rocket expertly fits a niche that is only likely to grow more common with devices such as the Steam Deck in the future.

Sure, PCIe 4.0 is great and all, but what if you want to upgrade to PCIe 5.0? If your system features a PCIe 5.0 M.2 slot, and you can afford it, then there is no question you’ll get significantly faster read and write speeds. And if you do decide to upgrade, there is currently no better PCIe 5.0 SSD than the Crucial T700. It practically shattered all of our benchmarks for both synthetic and real-world tests. How fast is it? Well, in a side-by-side comparison with the WD Black SN850X, our top pick for best PCIe 4.0, the Crucial T700 almost doubled it in sequential read and write benchmarks, was around 30 percent fast in the 48GB transfer test, and about 25 percent faster in the 450GB transfer tests. Currently, the T700 is undoubtedly the king of the hill by a fair margin when it comes to PCIe 5.0. So if and when you decide to make the change, the Crucial T700 is your best bet.