WD Blue SN580 500GB
- + Compact M.2 form factor
- + DRAM cache for consistent performance
THE VERDICT
Blue SN580 500GB is the stronger buy for most people because it combines the broader spec lead with a more defensible price. P3 Plus 1TB is not a bad pick, but it only makes more sense if its narrower strengths line up exactly with your workload.
CRITERIA BREAKDOWN
Price Positioning
Both sit in a very similar price band, so price alone should not decide this comparison.
Overall Score
Blue SN580 500GB carries the stronger OverLKD score and therefore the broader all-round recommendation.
Form Factor
Both products are close enough on form factor that this row is not a deciding factor alone.
Capacity
P3 Plus 1TB leads on capacity based on the harder spec line.
Interface
Both products are close enough on interface that this row is not a deciding factor alone.
Read Speed
P3 Plus 1TB leads on read speed based on the harder spec line.
THE BIG DIFFERENCES
- Blue SN580 500GB and P3 Plus 1TB are priced closely, so the decision comes down to actual specs.
- Blue SN580 500GB leads on the more complete spec sheet.
- P3 Plus 1TB still has a case if you care more about capacity than balanced value.
| SPEC | WD Blue SN580 500GB | Crucial P3 Plus 1TB | READOUT |
|---|---|---|---|
| Form Factor | M.2 2280 | M.2 2280 | Both products are close enough on form factor that this row is not a deciding factor alone. |
| Capacity | 500GB | 1TB | P3 Plus 1TB leads on capacity based on the harder spec line. |
| Interface | NVMe PCIe 4.0 | PCIe 4.0 x4 NVMe | Both products are close enough on interface that this row is not a deciding factor alone. |
| Read Speed | 4150 MB/s | 5000 MB/s | P3 Plus 1TB leads on read speed based on the harder spec line. |
| Write Speed | 3600 MB/s | 3600 MB/s | Both products are close enough on write speed that this row is not a deciding factor alone. |
| Cache | SLC | HMB | Both products are close enough on cache that this row is not a deciding factor alone. |
| Warranty | 5 years | 5 years | Both products are close enough on warranty that this row is not a deciding factor alone. |
SPECIFICATIONS
| SPECIFICATIONS | BEST OVERALL WD Blue SN580 500GB | EXCELLENT ALTERNATIVE Crucial P3 Plus 1TB |
|---|---|---|
| ACTION | View on Amazon ↗ | View on Amazon ↗ |
| OVERLKD SCORE | 39/100 | 38/100 |
| FORM FACTOR | M.2 2280 | M.2 2280 |
| CAPACITY | 500GB | 1TB |
| INTERFACE | NVMe PCIe 4.0 | PCIe 4.0 x4 NVMe |
| READ SPEED | 4150 MB/s | 5000 MB/s |
| WRITE SPEED | 3600 MB/s | 3600 MB/s |
| CACHE | SLC | HMB |
| WARRANTY | 5 years | 5 years |
BUYING TAKEAWAY
If you want the shortest answer: buy Blue SN580 500GB unless P3 Plus 1TB's specific advantage is exactly what you need.
Winner: WD Blue SN580 500GB