The Samsung 990 Pro is Samsung’s flagship PCIe 4.0 NVMe SSD — offering up to 7450MB/s sequential read and 6900MB/s write. In 2026, with PCIe 5.0 SSDs now available, is the 990 Pro still the right buy for a gaming PC? Here’s the full breakdown.
Key Specs
| Spec | 1TB | 2TB |
|---|---|---|
| Interface | PCIe 4.0 x4, NVMe 2.0 | PCIe 4.0 x4, NVMe 2.0 |
| Seq. Read | 7450 MB/s | 7450 MB/s |
| Seq. Write | 6900 MB/s | 6900 MB/s |
| Random Read | 1,400K IOPS | 1,550K IOPS |
| Random Write | 1,300K IOPS | 1,500K IOPS |
| Controller | Samsung Pascall | Samsung Pascall |
| NAND | Samsung V-NAND TLC | Samsung V-NAND TLC |
| TBW | 600 TBW | 1200 TBW |
| Warranty | 5 years | 5 years |
| Price | ~$80 | ~$130 |
Real-World Gaming Performance
For gaming, sequential speeds above ~3500MB/s produce no measurable difference in game load times — modern titles are bottlenecked by game engine asset streaming, not raw SSD throughput. The 990 Pro’s 7450MB/s is effectively wasted headroom for gaming specifically.
Where the 990 Pro genuinely matters:
- Windows boot time: Cold boot in ~8 seconds on our test system (Ryzen 7 7700X)
- Game installation: Large game installations (100GB+) from another fast drive complete 30–40% faster than SATA SSDs
- DirectStorage (DX12 Ultimate games): GPU asset streaming uses NVMe bandwidth directly — this is where PCIe 4.0 actually matters for gaming
- Content creation: Video editing, large file transfers, and compilation workloads see real benefits from 7GB/s speeds
Thermals
The 990 Pro runs hot under sustained load — up to 75°C without a heatsink in an enclosed case. Samsung issued a firmware update (4B2QFXO7) that improved thermal throttling behavior. Without a heatsink, sustained write speeds drop after the first 10–15GB of continuous writing.
Recommendation: Use the included heatsink version (990 Pro with Heatsink, ~$10 more) or your motherboard’s M.2 heatsink if available. Thermal throttling with heatsink is effectively eliminated under typical gaming workloads.
Samsung 990 Pro vs WD Black SN850X
| Samsung 990 Pro | WD Black SN850X | |
|---|---|---|
| Interface | PCIe 4.0 | PCIe 4.0 |
| Seq. Read | 7450 MB/s | 7300 MB/s |
| Gaming Load Times | Identical | Identical |
| Thermals | Runs hotter | Cooler |
| PS5 Compatible | ✓ | ✓ |
| Price (2TB) | ~$130 | ~$120 |
| Reliability | Excellent | Excellent |
In gaming use, these drives are effectively identical. WD Black SN850X runs cooler and costs slightly less for the 2TB — giving it a marginal edge for pure gaming builds. The 990 Pro is the better choice for content creation workloads where sustained write speeds matter.
Should You Buy PCIe 5.0 Instead?
PCIe 5.0 SSDs (Samsung 9100 Pro, Crucial T705) offer 14,000+ MB/s sequential reads. For gaming in 2026: no, it doesn’t matter. DirectStorage games don’t yet saturate PCIe 4.0 bandwidth. PCIe 5.0 SSDs also run significantly hotter and cost 2–3x more per GB. The 990 Pro at current prices is the smart buy for gaming PCs for at least another 2–3 years.
1TB vs 2TB — Which to Buy?
The 2TB version costs ~$50 more than 1TB but provides double the storage, higher random IOPS, and double the TBW endurance rating. For a primary gaming drive in 2026 — where a single AAA game can be 100–150GB — the 2TB is the practical choice unless budget is tight.
Verdict
The Samsung 990 Pro is an excellent PCIe 4.0 NVMe SSD. Fast, reliable, backed by Samsung’s 5-year warranty. For a gaming PC, the 2TB version at ~$130 is exceptional value in 2026. It doesn’t meaningfully outperform cheaper PCIe 4.0 options in gaming load times, but Samsung’s reliability track record and long warranty justify the slight price premium. Score: 9/10.
Frequently Asked Questions
Is the Samsung 990 Pro good for gaming?
Yes. It’s one of the best NVMe SSDs for gaming PCs. Fast load times, excellent reliability, and 5-year warranty. For pure gaming, cheaper PCIe 4.0 options offer near-identical game load times, but the 990 Pro’s consistency and Samsung build quality make it a confident recommendation.
Does the Samsung 990 Pro work in PS5?
Yes. The 990 Pro is fully compatible with PS5’s M.2 expansion slot. Use the heatsink version or add a third-party heatsink — PS5’s M.2 bay runs hot and the heatsink is required by Sony’s guidelines.
Is there a Samsung 990 Pro firmware issue?
Early 990 Pro units had a firmware bug causing excessive wear on some drives. Samsung released firmware 4B2QFXO7 to fix this. If you own an early unit, update via Samsung Magician software immediately. Drives purchased in 2024 or later shipped with the fix pre-installed.
