Compare Solid State Drives

Compare Western Digital WDS500G1B0B vs SANDISK Optimus GX PRO 850X 1TB

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  2. Solid State Drives
  3. Western Digital WDS500G1B0B 🆚 SANDISK Optimus GX PRO 850X 1TB
Western Digital WDS500G1B0B 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 and NVME.
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WD Blue M.2 500GB SSD SATA 6Gb/s WDS500G1B0B
Western Digital WDS500G1B0B
SANDISK Optimus GX PRO 850X 1TB NVMe PCIe Gen4 x4 M.2-2280 SDSP81100TAN-000E0
SANDISK Optimus GX PRO 850X 1TB
Prices
(Change region)
Out of Stock
Free shipping
$99.99
-
Buy now
Prices
(Change region)
In Stock
$329.99
In Stock
Free shipping
$329.99
In Stock
Free shipping
$329.99
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* Product prices and availability are subject to change frequently. Any price and availability information displayed on Amazon at the time of purchase will apply.
Brand
Western Digital
Brand
SanDisk
Model
WDS500G1B0B
Model
  • SDSP81100TAN-000E0
  • SDSP81100TAN
Release Date
📅 April 2020
Release Date
📅 February 2026
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
★★★★★
(290 reviews)
User reviews
Performance (Charts)
325th / 1746
Performance (Charts)
n/a
Effective Value
247th / 336
Effective Value
-
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.20
Price/GB
$0.33
GB/$1
5
GB/$1
3.03
Series
Blue
Series
-
Capacity
500 GB
Capacity
1000 GB
Interface
SATA 6 Gb/s
Interface
PCIe Gen4 x4
NVME
No
NVME
Yes
Form Factor
M.2-2280
Form Factor
M.2-2280
NAND Flash Type
2D NAND
NAND Flash Type
-
Max Sequential Read
Up to 545 MB/s
Max Sequential Read
-
Max Sequential Write
Up to 525 MB/s
Max Sequential Write
-
MTBF
1,750,000 hours
MTBF
-
-

Comparison and key differences summary

Reasons to buy the Western Digital WDS500G1B0B:

  • 70% cheaper, you can save $230.00

Buy now

Reasons to buy the SANDISK Optimus GX PRO 850X 1TB:

  • Newer Product, it was released around 6 years later
  • More Capacity (+500 GB available)
  • Newer interface (PCIe Gen4 x4)

Buy now

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