WD BLACK SN8100 4TB
4TB · PCIe 5.0 NVMe · 14,900 MB/s read · PassMark #9
Corsair MP700 PRO XT
PCIe 5.0 NVMe · 14,900 MB/s read · PassMark #3
Corsair MP700 PRO XT takes it — here’s why.
In our weighted Specdex score, WD BLACK SN8100 4TB lands at 85 and Corsair MP700 PRO XT at 88. That puts Corsair MP700 PRO XT ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick WD BLACK SN8100 4TB if…
- ✓PassMark Disk Score top-20 (90,416) — sustained-write class-leading
- ✓PCIe 5.0 interface for next-gen platforms (AM5, LGA 1851)
Pick Corsair MP700 PRO XT if…
- ✓Top 3 on PassMark Disk Score — flagship-tier sequential + random performance
- ✓Pro-tier controller and DRAM cache for sustained throughput
- ✓PCIe 5.0 interface for next-gen platforms (AM5, LGA 1851)
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
Corsair MP700 PRO XTSpecdex score per dollar at MSRP
Corsair MP700 PRO XT more score per dollar ($249 vs $549).
Score breakdown
Specs side-by-side
| Spec | WD BLACK SN8100 4TB | Corsair MP700 PRO XT |
|---|---|---|
| Form factor | M.2 2280 (single-sided) | M.2 2280 |
| Interface | PCIe 5.0 x4 NVMe 2.0 | PCIe 5.0 x4 NVMe 2.0 |
| Sequential read | 14,900 MB/s | 14,900 MB/s |
| Sequential write | 14,000 MB/s | 14,500 MB/s |
| Random read | 2,300,000 IOPS | 2,700,000 IOPS |
| Random write | 2,400,000 IOPS | 3,300,000 IOPS |
| Controller | SanDisk-tuned Silicon Motion SM2508 (6nm, quad Cortex-R8) | Phison E28 (6nm) |
| NAND | 218-layer BiCS8 CBA 3D TLC | 218-layer Kioxia BiCS8 3D TLC |
| DRAM | yes (onboard DRAM) | yes (dedicated DRAM cache chip) |
| Endurance | 2,400 TBW | 1,400 TBW |
| Warranty | 5 years | 5 years |
| PassMark Disk Score | 90,416 | 93,137 |
| PassMark rank | #9 of 100 consumer SSDs | #3 of 100 consumer SSDs |
| Spec basis | — | 2TB reference SKU — TBW/IOPS vary by capacity |
WD BLACK SN8100 4TB
- +PassMark Disk Score top-20 (90,416) — sustained-write class-leading
- +PCIe 5.0 interface for next-gen platforms (AM5, LGA 1851)
- −PCIe 5.0 drives run hot — heatsink or motherboard M.2 cooling recommended
- −Pricing varies — confirm current retail before purchase
Corsair MP700 PRO XT
- +Top 3 on PassMark Disk Score — flagship-tier sequential + random performance
- +Pro-tier controller and DRAM cache for sustained throughput
- +PCIe 5.0 interface for next-gen platforms (AM5, LGA 1851)
- −PCIe 5.0 drives run hot — heatsink or motherboard M.2 cooling recommended
- −Pricing varies — confirm current retail before purchase
FAQ: WD BLACK SN8100 4TB vs Corsair MP700 PRO XT
Which is better, WD BLACK SN8100 4TB or Corsair MP700 PRO XT? +
Corsair MP700 PRO XT scores 88 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is WD BLACK SN8100 4TB worth the price? +
At $549, WD BLACK SN8100 4TB delivers a Specdex score of 85 — strongest in passmark_disk.
Is Corsair MP700 PRO XT worth the price? +
At $249, Corsair MP700 PRO XT delivers a Specdex score of 88 — strongest in passmark_disk.
Does WD BLACK SN8100 4TB or Corsair MP700 PRO XT last longer? +
Based on our long-term update and support ratings, both ship with multi-year support. Battery and reliability scores are visible in the breakdown above.
Which is the better value, WD BLACK SN8100 4TB or Corsair MP700 PRO XT? +
Corsair MP700 PRO XT — more score per dollar ($249 vs $549). Specdex score per dollar at MSRP.