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Compare SANDISK Optimus GX PRO 850X 4TB vs Extreme PRO 960GB

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  2. Solid State Drives
  3. SANDISK Optimus GX PRO 850X 4TB 🆚 SanDisk Extreme PRO 960GB
The main differences between SANDISK Optimus GX PRO 850X 4TB and SanDisk Extreme PRO 960GB are in Capacity, Interface, NVME and Form Factor.
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SANDISK Optimus GX PRO 850X 4TB NVMe PCIe Gen4 x4 M.2-2280 SDSP81400TAN-000E0
SANDISK Optimus GX PRO 850X 4TB
SanDisk Extreme PRO 960GB SATA 6.0GB/s 2.5-Inch SDSSDXPS-960G-G25
SanDisk Extreme PRO 960GB
Prices
(Change region)
In Stock
$1,329.99
In Stock
Free shipping
$1,329.99
In Stock
$1,329.99
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Prices
(Change region)
Out of Stock
Free shipping
$399.99
-
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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
SanDisk
Brand
SanDisk
Model
  • SDSP81400TAN-000E0
  • SDSP81400TAN
Model
SDSSDXPS-960G-G25
Release Date
📅 February 2026
Release Date
📅 June 2014
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★★☆
(66 reviews)
Performance (Charts)
n/a
Performance (Charts)
239th / 1746
Effective Value
-
Effective Value
315th / 336
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.33
Price/GB
$0.42
GB/$1
3.01
GB/$1
2.4
Series
-
Series
Extreme Pro
Capacity
4000 GB
Capacity
960 GB
Interface
PCIe Gen4 x4
Interface
SATA 6 Gb/s
NVME
Yes
NVME
No
Form Factor
M.2-2280
Form Factor
2.5"
SSD Controller
-
SSD Controller
Marvell 9187
NAND Flash Type
-
NAND Flash Type
MLC
Max Sequential Read
-
Max Sequential Read
Up to 550 MB/s
Max Sequential Write
-
Max Sequential Write
Up to 515 MB/s
-

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 850X 4TB:

  • Newer Product, it was released around 12 years later
  • More Capacity (+3040 GB available)
  • Newer interface (PCIe Gen4 x4)

Buy now

Reasons to buy the SanDisk Extreme PRO 960GB:

  • 70% cheaper, you can save $930.00

Buy now

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