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Although Gen4 drives are backward-compatible, they will offer no performance benefit in this scenario.

There is no need to invest in a more expensive Gen4 SSD for use in a Gen3 system. Many users – and those with older Intel builds in particular – are still on PCIe Gen3. Gen4-capable systems are also relatively recent and start with Intel’s 11th/12th-gen Core platforms or an AMD counterpart based on a Ryzen/Threadripper 3000/5000 CPU and an X570, B550, or TRX40 motherboard or later. The first Gen5 M.2 SSDs are about to roll out but are not widely available yet.įor now, the fastest M.2 SSDs use the PCIe 4.0 standard. PCIe 5.0 (Gen5)-capable motherboards are now available along with AMD’s latest platform and some Intel boards. You also have to account for multiple generations of the PCIe interface itself. If you have a somewhat modern motherboard, however, it most likely comes with a PCIe/NVMe-capable M.2 slot, so this is the type of SSD to look for. Some M.2 SSDs use the 20-year-old SATA interface and have the same performance limitations as any 2.5″ drive.

When shopping for a new SSD, it is important to remember that M.2 is just a form factor that says nothing of the drive’s performance. You can try it out right now in Square’s latest title Forspoken. AMD and Nvidia are implementing this technology under the names Smart Access Storage and RTX IO, respectively. Throughout 2023, we should also expect high-end NVMe SSDs to become faster in gaming PCs, thanks to GPU acceleration via Microsoft’s DirectStorage API. The newer protocol includes many efficiency improvements to deal with parallel transfers and the low-latency nature of SSDs. It replaces AHCI (paired with SATA), which was originally designed for mechanical hard drives. The NVMe protocol – short for non-volatile memory express – was created to make the most out of solid state drives in combination with the PCI-Express (PCIe) interface. The performance of any storage device boils down to how quickly it lets you move data from storage (non-volatile, slower) to DRAM (volatile, faster).