We mentioned NVMe above. NVMe is another technical hurdle to consider, because systems and motherboards need board-level support for these drives to be bootable. All late-model motherboards now support NVMe M.2 drives, but older boards are not guaranteed to support booting from an NVMe-based drive. Outside of new motherboards, these high-bandwidth, NVMe-capable slots are also found in some recent laptops. Also note that in some cases, a laptop may support a PCI Express NVMe drive, but it may be soldered to the motherboard and thus not upgradable. So, if you're thinking of upgrading a recent laptop or convertible, be sure to consult your manual very closely before buying one of these drives. (Credit: Zlata Ivleva)

Though it can't quite match the gaming prowess of some of the latest generation of PCIe 4.0 speedsters, the 990 Pro with Heatsink still offers respectable gaming performance while being a thoroughbred workhorse for creative tasks. It's an appealing choice and a worthy upgrade from the 980 Pro.Available in 1TB and 2TB capacities, the VP4300 offers rated speeds of up to 7,400MB/s read and 6,800MB/s write, which are pretty much spot on in our testing (where we recorded 7,389MB/s and 6,799MB/s sequential read and write speeds, respectively). We put every SSD we get in the PC Gamer labs through their paces in various benchmarks made up of a mix of synthetic tests and real-world applications. To ascertain a drives sequential throughput, we use ATTO SSD Benchmark for compressible data (a best-case scenario) and AS SSD for incompressible data (more realistic). We also test random throughput with AS SSD and a combination of CrystalDiskMark 7.0 and Anvil Pro. The first attempt was a new form factor called mini-SATA, or mSATA. The boiled-down essence of an SSD with the shell removed, an mSATA drive is a bare, rectangular circuit board. (Most mSATA drives relevant to upgraders measure about 1 by 2 inches.) mSATA drives fit into a special slot in a laptop's logic board or on a PC motherboard. As the name suggests, the slot is a conduit to the Serial ATA bus in the system. The interface on the drive end is an edge connector on the PCB, as opposed to the usual SATA cabling. The mSATA drive also draws all the power it needs through the slot. (Credit: HP) If the drive is compatible with a video game console, we will also measure the SSD's speed both with the console's own benchmarks but also through file copy operations to and from the main console storage drive. Silicon Power is a brand that probably doesn’t get much attention compared to the likes of Samsung or WD, but when you look at its XS70 NVMe SSD with its high-end specifications, it's clear that the brand name isn't everything. Armed with the latest Phison controller and high-performance NAND flash memory, a drive like the Silicon Power XS70 should have no problem competing with thebest SSD on the market.

The Addlink AddGame A93 is a good choice for budget-conscious users looking for a high-performing general-purpose PCI Express 4.0 SSD, either as an upgrade for a desktop computer or to add extra storage space to a PS5.For most PC applications, that probably doesn't matter. But for small form factor rigs and perhaps a gaming laptop, every little can undoubtedly help. On that note, for most applications, we'd probably go for the cheaper bare drive rather than this more expensive model with its heat spreader. The revised SN850X is inherently a cooler-running thing, after all. 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. A standout feature: the 990 Pro's sequential writes significantly outpace both its predecessor and competitors. Additionally, it showcases impressive read speeds, nearing PCIe 4.0's maximum of 8,000MB/s. In need of a lot more storage capacity? Look no further than the Lexar NM790. Available with up to four terabytes of storage, there's really no need to worry about your burgeoning Steam library any longer with one of these installed in your PC. Calculated by comparing P5 Plus’s sequential reads of 6600MB/s to the previous generation’s (P5) speed of 3400MB/s, or to the SATA’s (BX500) speed of 540MB/s.