Intel 660p 2TB vs SANDISK Optimus GX PRO 850X 1TB SSD Comparison

Intel 660p 2TB and SANDISK Optimus GX PRO 850X 1TB are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity, Interface, NAND Flash Type and Max Sequential Read.

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Intel 660p 2TB	SANDISK Optimus GX PRO 850X 1TB
Prices (Change region) In Stock + $39.99 Shipping $308.90	Prices (Change region) In Stock Free shipping $294.99 In Stock $294.99 In Stock $329.99 In Stock Free shipping $329.99 Out of Stock Free shipping $387.88 Show 2 more offers
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Brand Intel	Brand SanDisk
Model SSDPEKNW020T8X1	Model SDSP81100TAN-000E0 SDSP81100TAN
Release Date 📅 January 2019	Release Date 📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews ★★★★☆ (131 reviews) Add a product review	User reviews Add a product review
Performance (Charts) 121st / 1746	Performance (Charts) n/a
Effective Value 137th / 336	Effective Value -
Price history View Details ►	Price history View Details ►
Price/GB $0.15	Price/GB $0.29
GB/$1 6.63	GB/$1 3.39
Series 660p Series	Series Optimus GX PRO 850X
Capacity 2048 GB	Capacity 1000 GB
Interface PCIe Gen3 x4	Interface PCIe Gen4 x4
NVME Yes	NVME Yes
Form Factor M.2-2280	Form Factor M.2-2280
NAND Flash Type 3D2, QLC	NAND Flash Type 3D NAND TLC
Max Sequential Read Up to 1800 MB/s	Max Sequential Read Up to 7300 MB/s
Max Sequential Write Up to 1800 MB/s	Max Sequential Write Up to 6300 MB/s
MTBF 1,600,000 hours	MTBF 1,750,000 hours