Quick Answer

For X870 builders, a single strong NVMe drive is the better default than RAID0. RAID0 can lift benchmark numbers, but it adds failure risk and rarely improves game FPS or everyday responsiveness. Spend about R2,000-R4,500 on a good 2TB Gen 4 SSD before building a striped pair for bragging rights.

Why RAID0 Looks Faster Than It Feels

RAID0 splits data across two drives, so sequential transfer tests can look impressive. The problem is that games, Windows and launchers often wait on smaller reads, CPU work and shader compilation, not only massive sequential transfers. If one drive in a RAID0 pair fails, the whole volume is at risk, which is a poor trade for most gaming PCs.

When RAID0 Is Reasonable

RAID0 can make sense for a temporary scratch volume used for large video files, capture work or datasets that are backed up elsewhere. It is not a replacement for backup and it should not hold irreplaceable files. If you edit 4K projects and already own two matched drives, test the workflow before committing your main storage to it.

Slot And Lane Considerations

On boards such as MSI MAG X670E Tomahawk, ASUS TUF Gaming X670E-Plus or Gigabyte X870 Aorus Elite, the M.2 slots may not all run at the same speed. Some slots share bandwidth with PCIe cards or SATA ports, and heat from two drives under the GPU can reduce sustained speed. A single WD_BLACK SN850X, Samsung 990 Pro or Crucial T500 is simpler, cooler and easier to support.

FAQ

Does RAID0 improve gaming FPS?

No. It can reduce some copy or load times, but FPS is still mostly GPU and CPU bound. A better GPU helps a 144Hz target far more.

Is RAID0 safe for a boot drive?

It is not the safest choice. If either drive fails, the boot volume can be lost. Use one reliable SSD for Windows unless you have a specific workstation reason.

What should I buy instead?

Buy a larger single TLC NVMe drive first. Move to RAID0 only for temporary scratch work where every important file is backed up.

TIP

Buyer Check

Choose one larger TLC SSD before RAID0; it is easier to cool, easier to replace and much easier to recover from.