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Compare SANDISK Optimus GX PRO 8100 8TB vs XPG S40G 512GB

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  2. Solid State Drives
  3. SANDISK Optimus GX PRO 8100 8TB 🆚 XPG S40G 512GB
SANDISK Optimus GX PRO 8100 8TB and XPG S40G 512GB are both solid state drives with the same Form Factor (M.2-2280). The main differences are in Capacity and Interface.
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SANDISK Optimus GX PRO 8100 8TB NVMe PCIe Gen5 x4 M.2-2280 SDSP82800TAN-000E0
SANDISK Optimus GX PRO 8100 8TB
XPG S40G 512GB RGB 3D NAND PCIe Gen3x4 NVMe 1.3 M.2 2280 (AS40G-512GT-C)
XPG S40G 512GB
Prices
(Change region)
Out of Stock
$369.99
In Stock
$2,799.99
In Stock
Free shipping
$2,799.99
Show 1 more offers
Prices
(Change region)
Out of Stock
Free shipping
$44.99
Out of Stock
Free shipping
$45.99
Out of Stock
Free shipping
$64.99
Show 3 more offers
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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
XPG
Model
  • SDSP82800TAN-000E0
  • SDSP82800TAN
Model
AS40G-512GT-C
Release Date
📅 February 2026
Release Date
📅 November 2019
* First availability for purchase, it may not correspond to the actual market launch date.
User reviews
User reviews
★★★☆☆
(7 reviews)
Price history
View Details ►
Price history
View Details ►
Price/GB
$0.05
Price/GB
$0.09
GB/$1
21.62
GB/$1
11.38
Series
-
Series
SPECTRIX S40G RGB
Capacity
8000 GB
Capacity
512 GB
Interface
PCIe Gen5 x4
Interface
PCIe Gen3 x4
NVME
Yes
NVME
Yes
Form Factor
M.2-2280
Form Factor
M.2-2280
NAND Flash Type
-
NAND Flash Type
3D TLC
Max Sequential Read
-
Max Sequential Read
ATTO: Up to 3500 MB/s
CDM: Up to 3500 MB/s
AS SSD: Up to 2950 MB/s
Max Sequential Write
-
Max Sequential Write
ATTO: Up to 1900 MB/s
CDM: Up to 2400 MB/s
AS SSD: Up to 1600 MB/s
MTBF
-
MTBF
2,000,000 hours
-
XPG S40G 1TB 1TB
$79.99
XPG S40G 256GB 256GB
$45.99
ADATA SPECTTRIX 2TB 2TB
$189.99
XPG S40G 4TB 4 TB
$566.36

Comparison and key differences summary

Reasons to buy the SANDISK Optimus GX PRO 8100 8TB:

  • Newer Product, it was released around 6 years later
  • More Capacity (+7488 GB available)
  • Newer interface (PCIe Gen5 x4)

Buy now

Reasons to buy the XPG S40G 512GB:

  • 88% cheaper, you can save $325.00

Buy now

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