WD BLACK SN8100 4TB
4TB · PCIe 5.0 NVMe · 14,900 MB/s read · PassMark #9
Samsung 870 EVO 500GB
SATA · 560/530 MB/s · 500GB
Dead heat — it comes down to priorities.
In our weighted Specdex score, WD BLACK SN8100 4TB lands at 85 and Samsung 870 EVO 500GB at 85. With scores tied, the decision hinges on which sub-scores matter most to you.
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 Samsung 870 EVO 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
Samsung 870 EVO 500GBSpecdex score per dollar at MSRP
Samsung 870 EVO 500GB more score per dollar ($50 vs $549).
Score breakdown
Specs side-by-side
| Spec | WD BLACK SN8100 4TB | Samsung 870 EVO 500GB |
|---|---|---|
| Form factor | M.2 2280 (single-sided) | — |
| Interface | PCIe 5.0 x4 NVMe 2.0 | SATA |
| 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 | 2,400 TBW | — |
| Warranty | 5 years | — |
| PassMark Disk Score | 90,416 | — |
| PassMark rank | #9 of 100 consumer SSDs | — |
| Capacity | — | 500GB |
| Read/Write | — | 560/530 MB/s |
| Release year | — | 2020 |
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
Samsung 870 EVO 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 4TB vs Samsung 870 EVO 500GB
Which is better, WD BLACK SN8100 4TB or Samsung 870 EVO 500GB? +
Both score 85 on our weighted rubric — tied. 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 Samsung 870 EVO 500GB worth the price? +
At $50, Samsung 870 EVO 500GB delivers a Specdex score of 85 — strongest in read.
Does WD BLACK SN8100 4TB or Samsung 870 EVO 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 4TB or Samsung 870 EVO 500GB? +
Samsung 870 EVO 500GB — more score per dollar ($50 vs $549). Specdex score per dollar at MSRP.