WD Black SN850X 4TB
PCIe 4.0 · 7300/6600 MB/s · 4TB
TeamGroup T-Force Cardea Z540 1TB
PCIe 5.0 · 12400/11800 MB/s · 1TB
TeamGroup T-Force Cardea Z540 1TB takes it — here’s why.
In our weighted Specdex score, WD Black SN850X 4TB lands at 86 and TeamGroup T-Force Cardea Z540 1TB at 92. That puts TeamGroup T-Force Cardea Z540 1TB ahead by 6 points — a decisive margin driven mostly by its strengths in the categories below.
Pick WD Black SN850X 4TB if…
- ✓M.2 NVMe
- ✓Competitive per-GB cost
- ✓TBW scales with capacity
Pick TeamGroup T-Force Cardea Z540 1TB if…
- ✓M.2 NVMe
- ✓Competitive per-GB cost
- ✓TBW scales with capacity
Score breakdown
Specs side-by-side
| Spec | WD Black SN850X 4TB | TeamGroup T-Force Cardea Z540 1TB |
|---|---|---|
| Interface | PCIe 4.0 | PCIe 5.0 |
| Capacity | ▲ 4TB | 1TB |
| Read/Write | 7300/6600 MB/s | 12400/11800 MB/s |
WD Black SN850X 4TB
- +M.2 NVMe
- +Competitive per-GB cost
- +TBW scales with capacity
- −Thermals on Gen 5 drives
- −DRAM-less models slower under sustained load
- −Require heatsinks in many systems
TeamGroup T-Force Cardea Z540 1TB
- +M.2 NVMe
- +Competitive per-GB cost
- +TBW scales with capacity
- −Thermals on Gen 5 drives
- −DRAM-less models slower under sustained load
- −Require heatsinks in many systems
FAQ: WD Black SN850X 4TB vs TeamGroup T-Force Cardea Z540 1TB
Which is better, WD Black SN850X 4TB or TeamGroup T-Force Cardea Z540 1TB? +
TeamGroup T-Force Cardea Z540 1TB scores 92 on our weighted rubric — ahead by 6. Your best pick depends on the sub-scores above.
Is WD Black SN850X 4TB worth the price? +
At $360, WD Black SN850X 4TB delivers a Specdex score of 86 — strongest in read.
Is TeamGroup T-Force Cardea Z540 1TB worth the price? +
At $180, TeamGroup T-Force Cardea Z540 1TB delivers a Specdex score of 92 — strongest in read.
Does WD Black SN850X 4TB or TeamGroup T-Force Cardea Z540 1TB 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.