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Intel SSD 660p Series (512GB M.2 80mm Internal PCIe 3.0 X4 3D2 QLC)(978348)

Intel SSD 660p Series (512GB M.2 80mm Internal PCIe 3.0 X4 3D2 QLC)(978348)

Bottom line: The Intel SSD 660p Series ($129.00 on Amazon as of 2026-10-07): PCIe 3.0 x4 NVMe interface skips SATA bandwidth limits; main trade-off: QLC flash writes slower than TLC once SLC cache fills.

$129.00

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Buy on Amazon — $129.00 Compare to similar ssds & storage

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For SSDs and PC storage upgrades, synthesises manufacturer specs and independent reviews rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ PCIe 3.0 x4 NVMe interface skips SATA bandwidth limits
  • ✓ QLC design packs up to 2TB in one M.2 2280 drive
  • ✓ Thin M.2 80mm fits notebooks, desktops and mobile builds
  • ✓ Works in servers and arrays that accept M.2 2280 PCIe

Cons

  • ✗ QLC flash writes slower than TLC once SLC cache fills
  • ✗ 512GB capacity is entry-level for a modern game library
  • ✗ Intel lists no DRAM cache or endurance rating in the spec sheet
  • ✗ No listed heatsink, so airflow matters in tight M.2 slots

Manufacturer description

Empowered by Intel's innovative Intel QLC Technology, the Intel SSD 660p offers higher capacities at a lower cost than TLC-based options. 1With PCIe, the new SSD 660p skips SATA and its limitations to offer up to 2TB in one drive. These client SSDs pack more data than TLC-based storage, allowing up to 2x more capacity in identical footprints. The thin M. 2 80mm form factor makes it perfect for notebooks, desktops, and mobile devices that need storage for everyday computing. Compatibility: This drive is compatible with servers and arrays that accept M. 2 2280 PCIe drives

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SpecPicks Verdict

SpecPicks scored Intel SSD 660p Series using a rating × review-volume × price-fit model applied to published specs and reviews across the ssds & storage category. Compare with similarly-priced alternatives in the ssds & storage category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for ssds & storage of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • PCIe* Performance at an Affordable Price
  • Twice the Capacity in Identical Footprints
  • Performance and Price That Matters

Full Specifications

BrandIntel
Model Name660p
Read Speed1500 megabytes_per_second
Form FactorM2
Media Speed1000 megabits_per_second
Model NumberSSD 660P 512GB M.2 80MM Internal PCIE3
Built-In MediaSSD,Warranty
Hard Disk Size512 GB
Item Type NameIntel SSD 660p Series (512GB, M.2 80mm PCIe 3.0 X4, 3D2, QLC)
Hard-Drive Size512 GB
Mfr Part NumberSSDPEKNW512G8X1
Number of Items1
Special FeaturePortable
Hardware PlatformPC
Installation TypeInternal Hard Drive
Compatible DevicesDesktop
Data Transfer Rate3938 gigabits_per_second
Enclosure Material3D Qlc Nand Flash
Additional FeaturesPortable
Hard Disk InterfaceNVMe

Ready to buy?

Intel SSD 660p Series (512GB M.2 80mm Internal PCIe 3.0 X4 3D2 QLC)(978348) is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $129.00

*Price sourced from Amazon.com. Last updated 2026-10-07. Price and availability subject to change.

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Intel SSD 660p Series (512GB M.2 80mm Internal PCIe 3.0 X4 3D2 QLC)(978348)
$129.00
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