Best Internal Ssds · head-to-head

WD_Black SN8100 vs Corsair MP700 PRO

A sourced, side-by-side comparison. WD_Black SN8100 is cheaper at $179.99. Every spec and price links to its source.

Which is better: the WD_Black SN8100 or Corsair MP700 PRO?

The WD_Black SN8100 wins 2 of the 2 specs we compare head to head; the other wins 0. The WD_Black SN8100 is the cheaper at $179.99. The WD_Black SN8100 both leads on specs and costs less — the straightforward pick.

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Key specs, head to head

The numbers that decide it, drawn to scale — longer bar wins, the accent bar is the stronger figure.

Seq read (Mbps)
WD_Black SN8100 14900
Corsair MP700 PRO 12400
Seq write (Mbps)
WD_Black SN8100 14000
Corsair MP700 PRO 11800

Full spec sheet

marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.

Spec WD_Black SN8100 Corsair MP700 PRO
US price $179.99 $474.99
BrandWestern DigitalCorsair
Released2025-052023-11
Capacity options (TB) 1, 2, 4, 8 1, 2, 4
Form factor M.2 2280 M.2 2280
Interface PCIe 5.0 x4 NVMe PCIe 5.0 x4 NVMe
Seq read (Mbps) 14900 12400
Seq write (Mbps) 14000 11800
Random read kiops 2300 1500
Random write kiops 2300 1600
Nand type TLC 3D TLC
Has dram cache Yes Yes
Endurance tbw 700
Warranty years 5 5

Sources — WD_Black SN8100: sandisk.com (verified 2026-07-11). Corsair MP700 PRO: corsair.com (verified 2026-07-11).

What's the difference between the WD_Black SN8100 and Corsair MP700 PRO?

Where the two actually differ on the specs we track (6 of 11). Matching specs are omitted.

  • Capacity options (TB): WD_Black SN8100 1, 2, 4, 8 vs Corsair MP700 PRO 1, 2, 4
  • Seq read (Mbps): WD_Black SN8100 14900 vs Corsair MP700 PRO 12400
  • Seq write (Mbps): WD_Black SN8100 14000 vs Corsair MP700 PRO 11800
  • Random read kiops: WD_Black SN8100 2300 vs Corsair MP700 PRO 1500
  • Random write kiops: WD_Black SN8100 2300 vs Corsair MP700 PRO 1600
  • Nand type: WD_Black SN8100 TLC vs Corsair MP700 PRO 3D TLC

What reviewers say

Sourced tester consensus for each — the "what people who used it think" layer, not just specs.

WD_Black SN8100

Three whitelisted labs (Tom's Hardware, StorageReview, PCWorld) benchmarked the 2TB WD_Black SN8100 and rate it among the fastest consumer Gen5 SSDs tested, with class-leading synthetic throughput and top-tier random IOPS plus strong power efficiency. Tom's Hardware and PCWorld flag premium pricing; PCWorld also hit write-speed inconsistency on an older motherboard that vanished on a new test bed. (TechPowerUp's review was dropped because only its intro/spec page was retrievable, leaving no verifiable quotes or measurements.) (3 sourced reviews, 3 lab-tested.)

Praised: Fastest consumer Gen5 SSD tested; record-setting synthetic throughput and top-tier random-read IOPS; Power-efficient and runs cool (peak under 50 degrees C in PCWorld's testing); Excellent all-around real-world performance, including gaming, DirectStorage and AI-model loading.

Flagged: Premium pricing versus Gen4 and rival Gen5 drives; Real-world gains over the best drives are small; overkill for most users; Write-speed inconsistency / severe drops on an older motherboard slot.

Corsair MP700 PRO

One whitelisted lab (StorageReview) hands-on tested the 2TB MP700 PRO air-cooler model and ranks it among the better consumer PCIe Gen5 SSDs, measuring ~12.4 GB/s CrystalDiskMark reads and ~11.8 GB/s writes. Praised for chart-topping sequential speed and its active-cooling heatsink design. Flagged for write and random-IO throughput trailing top competitors — 3rd place in sequential writes and near the bottom of the boot-IOPS leaderboard (51,521 IOPS). The TechPowerUp review was dropped because its paginated content was not retrievable and none of its cited quotes or figures could be verified. (1 sourced review, 1 lab-tested.)

Praised: Chart-topping sequential transfer speeds (~12.4 GB/s read, ~11.8 GB/s write); Standout active-cooling heatsink design.

Flagged: Write and random-IO throughput trails top competitors (3rd in sequential writes; near bottom of boot-IOPS leaderboard).

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