WD BLACK SN8100 2TB
2TB · PCIe 5.0 NVMe · 14,900 MB/s read · PassMark #13
ADATA SE920 500GB
USB4 · 3800/3700 MB/s · 500GB
ADATA SE920 500GB takes it — here’s why.
In our weighted Specdex score, WD BLACK SN8100 2TB lands at 84 and ADATA SE920 500GB at 90. That puts ADATA SE920 500GB ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.
Pick WD BLACK SN8100 2TB if…
- ✓PassMark Disk Score top-20 (89,069) — sustained-write class-leading
- ✓PCIe 5.0 interface for next-gen platforms (AM5, LGA 1851)
Pick ADATA SE920 500GB if…
- ✓Plug-and-play (portable)
- ✓Competitive per-GB cost
- ✓3-5 year warranties typical
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
ADATA SE920 500GBSpecdex score per dollar at MSRP
ADATA SE920 500GB more score per dollar ($180 vs $279).
Score breakdown
Specs side-by-side
| Spec | WD BLACK SN8100 2TB | ADATA SE920 500GB |
|---|---|---|
| Form factor | M.2 2280 (single-sided) | — |
| Interface | PCIe 5.0 x4 NVMe 2.0 | USB4 |
| Sequential read | 14,900 MB/s | — |
| Sequential write | 14,000 MB/s | — |
| Random read | 2,300,000 IOPS | — |
| Random write | 2,400,000 IOPS | — |
| Controller | SanDisk-tuned Silicon Motion SM2508 (6nm, quad Cortex-R8) | — |
| NAND | 218-layer BiCS8 CBA 3D TLC | — |
| DRAM | yes (onboard DRAM) | — |
| Endurance | 1,200 TBW | — |
| Warranty | 5 years | — |
| PassMark Disk Score | 89,069 | — |
| PassMark rank | #13 of 100 consumer SSDs | — |
| Capacity | — | 500GB |
| Read/Write | — | 3800/3700 MB/s |
| Release year | — | 2024 |
WD BLACK SN8100 2TB
- +PassMark Disk Score top-20 (89,069) — 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
ADATA SE920 500GB
- +Plug-and-play (portable)
- +Competitive per-GB cost
- +3-5 year warranties typical
- −Portable variants are USB-only
- −SATA models capped ~550 MB/s
- −DRAM-less drives slower sustained
FAQ: WD BLACK SN8100 2TB vs ADATA SE920 500GB
Which is better, WD BLACK SN8100 2TB or ADATA SE920 500GB? +
ADATA SE920 500GB scores 90 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.
Is WD BLACK SN8100 2TB worth the price? +
At $279, WD BLACK SN8100 2TB delivers a Specdex score of 84 — strongest in passmark_disk.
Is ADATA SE920 500GB worth the price? +
At $180, ADATA SE920 500GB delivers a Specdex score of 90 — strongest in read.
Does WD BLACK SN8100 2TB or ADATA SE920 500GB 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 2TB or ADATA SE920 500GB? +
ADATA SE920 500GB — more score per dollar ($180 vs $279). Specdex score per dollar at MSRP.