Samsung 990 EVO Plus 1TB · bare
PCIe 4.0/5.0 · 7250/6300 MB/s · 1TB
Viper PV593 1TB
1TB · PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #39
Samsung 990 EVO Plus 1TB · bare takes it — here’s why.
In our weighted Specdex score, Samsung 990 EVO Plus 1TB · bare lands at 86 and Viper PV593 1TB at 76. That puts Samsung 990 EVO Plus 1TB · bare ahead by 10 points — a decisive margin driven mostly by its strengths in the categories below.
Pick Samsung 990 EVO Plus 1TB · bare if…
- ✓M.2 NVMe
- ✓Competitive per-GB cost
- ✓TBW scales with capacity
Pick Viper PV593 1TB if…
- ✓Strong PCIe 5.0 performance at PassMark rank #39
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
TieSpecdex score per dollar at MSRP
Effectively tied — similar score-per-dollar at MSRP.
Score breakdown
Specs side-by-side
| Spec | Samsung 990 EVO Plus 1TB · bare | Viper PV593 1TB |
|---|---|---|
| Interface | PCIe 4.0/5.0 | PCIe 5.0 x4 NVMe 2.0 |
| Capacity | 1TB | — |
| Read/Write | 7250/6300 MB/s | — |
| Form factor | — | M.2 2280 |
| Sequential read | — | 14,000 MB/s |
| Sequential write | — | 10,000 MB/s |
| Controller | — | Silicon Motion SM2508 (TSMC 6nm, 8-channel) |
| NAND | — | 232-layer Micron B58R 3D TLC |
| DRAM | — | yes (DRAM cache) |
| Endurance | — | 700 TBW |
| Warranty | — | 5 years |
| PassMark Disk Score | — | 80,079 |
| PassMark rank | — | #39 of 100 consumer SSDs |
Samsung 990 EVO Plus 1TB · bare
- +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
Viper PV593 1TB
- +Strong PCIe 5.0 performance at PassMark rank #39
- −DRAM-less controllers on lower-tier variants may throttle under sustained writes
- −Pricing varies — confirm current retail before purchase
FAQ: Samsung 990 EVO Plus 1TB · bare vs Viper PV593 1TB
Which is better, Samsung 990 EVO Plus 1TB · bare or Viper PV593 1TB? +
Samsung 990 EVO Plus 1TB · bare scores 86 on our weighted rubric — ahead by 10. Your best pick depends on the sub-scores above.
Is Samsung 990 EVO Plus 1TB · bare worth the price? +
At $90, Samsung 990 EVO Plus 1TB · bare delivers a Specdex score of 86 — strongest in read.
Is Viper PV593 1TB worth the price? +
At $75, Viper PV593 1TB delivers a Specdex score of 76 — strongest in passmark_disk.
Does Samsung 990 EVO Plus 1TB · bare or Viper PV593 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.