SSD Speed: Does Gen4 NVMe Matter for Gaming?

Gen4 NVMe SSDs have been available long enough that prices have normalised, and most new mid-range motherboards now include Gen4 slots as standard. But the recurring question for gamers is whether spending more on a Gen4 drive over a Gen3 alternative actually improves their gaming experience in any measurable way.

Quick Answer

For gaming specifically, Gen4 NVMe offers minimal practical advantage over Gen3 NVMe in load times and in-game performance. The real performance difference appears in content creation, large file transfers, and workloads that sustain sequential reads and writes - not in typical game loading scenarios.

What the Sequential Speed Numbers Actually Mean 🔧

Gen4 NVMe drives advertise sequential read speeds of 5,000–7,450 MB/s compared to Gen3's ceiling of around 3,500 MB/s. These are impressive numbers, but they describe a narrow performance scenario: reading or writing large, contiguous files sequentially. Games do not access storage this way.

Game engines load assets through small, random read operations scattered across the drive. This access pattern is measured in IOPS (Input/Output Operations Per Second) rather than sequential MB/s. The difference in random 4K read IOPS between a mid-range Gen3 and Gen4 SSD is much narrower than the sequential speed gap suggests, typically 10–20% rather than the 100%+ difference in peak sequential throughput.

Exploring the current SSD catalogue shows that Gen4 drives are often priced only marginally above comparable Gen3 options at many capacity points - making the choice less consequential from a budget standpoint than it was at Gen4's launch.

Where Gen4 Does and Doesn't Matter ⚡

Gaming load times: Independent benchmarks consistently show under 2-second differences in game load times between Gen3 and Gen4 SSDs when the rest of the system is equivalent. This gap becomes irrelevant in the context of a 30–60 second map load. Microsoft's DirectStorage API, which games are increasingly adopting, benefits more from Gen4 speeds - but the real-world improvement is still modest in current implementations.

Open-world streaming: Some open-world games stream assets continuously from storage as you traverse the map. Here, faster sequential read speeds have a slightly more meaningful impact on reducing pop-in and stutter during rapid movement. Gen4 provides a marginal edge in these scenarios, but a clean Gen3 NVMe drive already eliminates the stutter that plagued traditional spinning hard drives entirely.

Content creation: Video editing, 3D rendering, and large file operations genuinely benefit from Gen4 speeds. If your PC doubles as a gaming and creative workstation, the Gen4 premium is more justifiable.

Budget allocation: If choosing between a Gen4 SSD and a Gen3 SSD with the price difference redirected toward a better GPU, the GPU upgrade will produce a dramatically larger improvement to gaming experience. Frame rates, visual quality, and resolution capabilities all depend on the GPU in ways that SSD generation simply cannot match.

Frequently Asked Questions ❓

Q: Will I notice a difference switching from Gen3 to Gen4 in daily gaming? A: In most cases, no. The load time difference is measurable in benchmarks but imperceptible during normal play sessions. Games feel the same after the initial load completes.

Q: Does Gen4 NVMe run hotter than Gen3? A: High-performance Gen4 drives do run warmer under sustained loads. Most modern motherboards include M.2 heatsinks that handle this adequately. Standalone Gen4 drives in poorly ventilated enclosures may throttle during sustained writes.

Q: Should I prioritise Gen4 for a new build in 2026? A: Since Gen4 M.2 slots are now standard on most mid-range and high-end motherboards, and pricing between Gen3 and Gen4 has converged, choosing a Gen4 drive for a new build is reasonable. Just don't sacrifice GPU budget for a faster SSD - the gaming performance return does not justify it.

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