How much faster is a Gen 4 NVMe SSD than Gen 3 or SATA?

A PCIe Gen 4 NVMe SSD reads sequential data at roughly 5,000 to 7,400MB/s, about double a Gen 3 NVMe drive and around ten times a SATA SSD's ~550MB/s ceiling. The gap is largest for big file transfers; for general gaming and Windows use the day-to-day feel is fast on any NVMe drive but noticeably snappier on Gen 4.

What capacity Gen 4 SSD should I buy for gaming?

2TB is the practical sweet spot for most gaming PCs, since modern titles often exceed 100GB each and a 1TB drive fills quickly once Windows and a few games are installed. Choose 4TB if you keep a large library installed at once or also edit high-resolution video. 1TB works well as a dedicated boot or secondary drive.

Do I need a Gen 4 motherboard, and are these SSDs backward compatible?

To reach full speed you need an M.2 slot wired for PCIe 4.0, which most current AMD (B650/X670) and Intel boards provide. The drives are backward compatible: on an older PCIe 3.0 board they still work, just capped at Gen 3 speeds. Check your motherboard manual to confirm which M.2 slot runs at Gen 4.

What is the difference between DRAM and DRAM-less Gen 4 SSDs?

A DRAM cache stores the drive's mapping table on-board, keeping speeds consistent during sustained writes and heavy multitasking. DRAM-less drives are cheaper and fine for a boot drive or secondary game storage on a modern platform. For a busy primary drive that sees constant read and write activity, a DRAM-equipped model holds performance better under load.

Do Gen 4 NVMe SSDs need a heatsink?

Under long sustained transfers a fast Gen 4 drive can thermally throttle to protect itself. Many current motherboards include an M.2 heatsink that handles this, so a bare drive is usually fine. If your board has no heatsink, pick a drive with a low-profile one built in and check it clears your CPU cooler or graphics card.

Can I use a Gen 4 NVMe SSD in a PlayStation 5?

Yes. The PS5 accepts an M.2 PCIe 4.0 NVMe SSD in its expansion slot to expand storage for PS5 games. Sony recommends a drive rated at roughly 5,500MB/s or faster and a heatsink to manage temperatures inside the console, so a Gen 4 drive with a compatible-height heatsink is the right choice.

What does TBW mean and how long will a Gen 4 SSD last?

TBW (terabytes written) is the total data a drive is rated to write over its life, and it usually scales with capacity — often several hundred to over a thousand TBW on a 2TB model. Typical gaming and everyday use rarely approaches this, so most drives outlast the PC. TBW matters most for constant heavy writes such as video capture or scratch disks.

Should I choose Gen 4 or Gen 5 NVMe?

Gen 5 NVMe roughly doubles Gen 4's peak sequential speeds but costs more, runs hotter and often needs active cooling, and it delivers little benefit in gaming today. Gen 4 remains the value pick for the vast majority of South African builds; Gen 5 is worth it mainly for professional workloads that move very large files constantly and can use the extra bandwidth.

Gen 4 NVMe SSDs South Africa - PCIe 4.0 Storage

SSD

Gen 4 NVMe SSDs

PCIe 4.0 storage for gaming and creationPCIe 4.0 storage for gaming and creation

A PCIe Gen 4 NVMe SSD slots into an M.2 socket and reads sequential data at roughly 5,000 to 7,400MB/s — around double a Gen 3 drive and many times faster than a SATA SSD. That means quicker boots, shorter game load screens and faster handling of large project files. It is the sweet spot for most South African gamers and creators today: real speed on current Ryzen and Intel Core platforms without paying the premium of a Gen 5 drive.

Gen 4 NVMe SSDs

Gen 4 NVMe SSDs

Top 5 Reasons to Buy Gaming Laptops

How to Choose a Gen 4 NVMe SSD

Top 5 Reasons to Buy Gaming Laptops

How to Choose a Gen 4 NVMe SSD