Samsung 980 PRO 2 TB vs Kioxia XG8 (OEM) 1 TB
Short answer: which is best?
Samsung 980 PRO 2 TB is 22.5 % stronger than Kioxia XG8 (OEM) 1 TB. Samsung 980 PRO 2 TB ranks #9 of 54 measured system drives at WhatFPS (13,331 Drive score over 1 verified runs). Kioxia XG8 (OEM) 1 TB ranks #18 of 54 measured system drives at WhatFPS (10,885 Drive score over 1 verified runs). The numbers are measured in 2 verified WhatFPS runs — not estimated, not self-reported.
Measured comparison
| Metric | Samsung 980 PRO 2 TB | Kioxia XG8 (OEM) 1 TB |
|---|---|---|
| Drive score (the drive's own performance: sequential read + 4K IOPS) | 13,331 | 10,885 |
| Best rig (GAMING — whole PC) | 13,434 | 1,559 |
| Sequential read | 3,947 MB/s | 3,158 MB/s |
| 4K IOPS | 15,805 | 13,170 |
| 4K latency, median (lower is better) | 57 µs | 59 µs |
| Type | NVMe SSD | NVMe SSD |
| Size | 2 TB | 1 TB |
What the numbers mean
The drive score is the system drive's measured performance in the rigs it sat in — sequential read and 4K IOPS, unbuffered. PCIe generation, fill level and driver affect it. GAMING is the whole rig's score. We show both and never mix them.
All numbers come from our benchmark suite, the same test on every PC, written in Rust with no middleware. The methodology is open at https://whatfps.com/metodik
All measurements for Samsung 980 PRO 2 TB · All measurements for Kioxia XG8 (OEM) 1 TB