The answer — one pick, priced
Get the
WD Black SN8100 8TB
No budget ceiling
Reviewers rate it the fastest consumer SSD ever made — 14,900/13,200 MB/s and 2.2M IOPS at just ~7.5W, and at $1,900 it undercuts the Samsung 9100 Pro.
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Fit ledger — need → measured evidence
■ The catch — co-equal billing, always
Nobody has independently tested the 8TB. Published SN8100 reviews cover the 1TB, 2TB and 4TB capacities only — every 8TB figure here is a manufacturer specification. SanDisk also hasn't published whether the 8TB PCB is single- or double-sided, so verify slot clearance before you commit.
Dealbreaker? Runner-up №1 is the 8TB SKU three outlets actually tested ↓
■ Every product has a catch. Verdicts that hide it are how bad buys happen.
Runners-up — if your needs differ
Adjacent verdicts — same method
Traps — this verdict avoids
The double-sided lock-out
To fit 8TB on a 2280 stick, the Samsung 9100 Pro and WD Black SN850X both went double-sided — which locks them out of nearly every laptop, the PS5, and some compact ITX boards. Verify your slot takes a two-sided drive before you buy.
The Gen5 heat tax
Most PCIe 5.0 drives draw 11-14W under sustained load, and without active or large passive cooling their sustained writes throttle 40-60% within 30-60 seconds. Only the SN8100 (~7.5W average) escapes this.
Paying 2x for one stick
The AI-driven NAND shortage holds 8TB street pricing at roughly 2x its 2025 lows — the SN8100 lists at ~$1,900 against a $999 launch MSRP. Two 4TB drives often cost far less; single-stick 8TB only earns its premium when M.2 slots are scarce.
Provenance — 13 sources, dated
Winners are picked before affiliate payouts are checked, from the full research dossier at knowledgelib.io. Prices, stock and listings are re-verified monthly by an automated pipeline. Some links earn us a commission — it never changes the pick, and we say so here rather than in a footer you'd never read.