Viper PV593 2TB
2TB · PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #27
XPG MARS 980 BLADE
PCIe 5.0 NVMe · 14,000 MB/s read · PassMark #17
XPG MARS 980 BLADE takes it — here’s why.
In our weighted Specdex score, Viper PV593 2TB lands at 80 and XPG MARS 980 BLADE at 83. That puts XPG MARS 980 BLADE ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick Viper PV593 2TB if…
- ✓Strong PCIe 5.0 performance at PassMark rank #27
Pick XPG MARS 980 BLADE if…
- ✓PassMark Disk Score top-20 (88,359) — sustained-write class-leading
- ✓Current street price around $721
Winner by scenario
Derived from the sub-score breakdown · not a separate testValue for money
Viper PV593 2TBSpecdex score per dollar at MSRP
Viper PV593 2TB more score per dollar ($150 vs $300).
Score breakdown
Specs side-by-side
| Spec | Viper PV593 2TB | XPG MARS 980 BLADE |
|---|---|---|
| Form factor | M.2 2280 | M.2 2280 (passive, heat-spreader label) |
| Interface | PCIe 5.0 x4 NVMe 2.0 | PCIe 5.0 x4 NVMe 2.0 |
| Sequential read | 14,000 MB/s | 14,000 MB/s |
| Sequential write | 13,000 MB/s | 13,000 MB/s |
| Random read | 2,000,000 IOPS | 2,000,000 IOPS |
| Random write | 1,650,000 IOPS | 1,650,000 IOPS |
| Controller | Silicon Motion SM2508 (TSMC 6nm, 8-channel) | Silicon Motion SM2508 (TSMC 6nm) |
| NAND | 232-layer Micron B58R 3D TLC | 232-layer Micron 3D TLC |
| DRAM | yes (DRAM cache) | yes (DRAM cache buffer) |
| Endurance | 1,400 TBW | 1,480 TBW |
| Warranty | 5 years | 5 years |
| PassMark Disk Score | 84,747 | 88,359 |
| PassMark rank | #27 of 100 consumer SSDs | #17 of 100 consumer SSDs |
Viper PV593 2TB
- +Strong PCIe 5.0 performance at PassMark rank #27
- −DRAM-less controllers on lower-tier variants may throttle under sustained writes
- −Pricing varies — confirm current retail before purchase
XPG MARS 980 BLADE
- +PassMark Disk Score top-20 (88,359) — sustained-write class-leading
- +Current street price around $721
- −DRAM-less controllers on lower-tier variants may throttle under sustained writes
FAQ: Viper PV593 2TB vs XPG MARS 980 BLADE
Which is better, Viper PV593 2TB or XPG MARS 980 BLADE? +
XPG MARS 980 BLADE scores 83 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is Viper PV593 2TB worth the price? +
At $150, Viper PV593 2TB delivers a Specdex score of 80 — strongest in passmark_disk.
Is XPG MARS 980 BLADE worth the price? +
At $300, XPG MARS 980 BLADE delivers a Specdex score of 83 — strongest in passmark_disk.
Does Viper PV593 2TB or XPG MARS 980 BLADE 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, Viper PV593 2TB or XPG MARS 980 BLADE? +
Viper PV593 2TB — more score per dollar ($150 vs $300). Specdex score per dollar at MSRP.