KIOXIA-EXCERIA PRO G2 SSD
PCIe 5.0 NVMe · 14,900 MB/s read · PassMark #6
OWC Envoy Pro FX 500GB
USB4 · 2800/2800 MB/s · 500GB
OWC Envoy Pro FX 500GB takes it — here’s why.
In our weighted Specdex score, KIOXIA-EXCERIA PRO G2 SSD lands at 87 and OWC Envoy Pro FX 500GB at 90. That puts OWC Envoy Pro FX 500GB ahead by 3 points — a narrow margin driven mostly by its strengths in the categories below.
Pick KIOXIA-EXCERIA PRO G2 SSD if…
- ✓PassMark Disk Score top-20 (92,587) — sustained-write class-leading
- ✓Pro-tier controller and DRAM cache for sustained throughput
Pick OWC Envoy Pro FX 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
OWC Envoy Pro FX 500GBSpecdex score per dollar at MSRP
OWC Envoy Pro FX 500GB more score per dollar ($180 vs $200).
Score breakdown
Specs side-by-side
| Spec | KIOXIA-EXCERIA PRO G2 SSD | OWC Envoy Pro FX 500GB |
|---|---|---|
| Form factor | M.2 2280 | — |
| Interface | PCIe 5.0 x4 NVMe 2.0d | USB4 |
| Sequential read | 14,900 MB/s | — |
| Sequential write | 13,400 MB/s | — |
| Random read | 2,300,000 IOPS | — |
| Random write | 1,950,000 IOPS | — |
| Controller | Silicon Motion SM2508 (8-channel) | — |
| NAND | 218-layer Kioxia BiCS8 3D TLC | — |
| DRAM | yes (only DRAM model in Kioxia Gen5 lineup) | — |
| Endurance | 1,200 TBW | — |
| Warranty | 5 years | — |
| PassMark Disk Score | 92,587 | — |
| PassMark rank | #6 of 100 consumer SSDs | — |
| Spec basis | 2TB reference SKU — TBW/IOPS vary by capacity | — |
| Capacity | — | 500GB |
| Read/Write | — | 2800/2800 MB/s |
| Release year | — | 2021 |
KIOXIA-EXCERIA PRO G2 SSD
- +PassMark Disk Score top-20 (92,587) — sustained-write class-leading
- +Pro-tier controller and DRAM cache for sustained throughput
- −DRAM-less controllers on lower-tier variants may throttle under sustained writes
- −Pricing varies — confirm current retail before purchase
OWC Envoy Pro FX 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: KIOXIA-EXCERIA PRO G2 SSD vs OWC Envoy Pro FX 500GB
Which is better, KIOXIA-EXCERIA PRO G2 SSD or OWC Envoy Pro FX 500GB? +
OWC Envoy Pro FX 500GB scores 90 on our weighted rubric — ahead by 3. Your best pick depends on the sub-scores above.
Is KIOXIA-EXCERIA PRO G2 SSD worth the price? +
At $200, KIOXIA-EXCERIA PRO G2 SSD delivers a Specdex score of 87 — strongest in passmark_disk.
Is OWC Envoy Pro FX 500GB worth the price? +
At $180, OWC Envoy Pro FX 500GB delivers a Specdex score of 90 — strongest in read.
Does KIOXIA-EXCERIA PRO G2 SSD or OWC Envoy Pro FX 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, KIOXIA-EXCERIA PRO G2 SSD or OWC Envoy Pro FX 500GB? +
OWC Envoy Pro FX 500GB — more score per dollar ($180 vs $200). Specdex score per dollar at MSRP.