ADATA XPG Gammix S70 Blade 2TB vs Samsung 990 Pro 2TB
ADATA XPG Gammix S70 Blade 2TB and Samsung 990 Pro 2TB each win something the other does not — the choice is which of those you want.
| Specification | ADATAXPG Gammix S70 Blade 2TB | Samsung990 Pro 2TB |
|---|---|---|
| Capacity (GB) | 2000 | 2000 |
| Sequential read (MB/s) | 7400 | 7450better |
| Sequential write (MB/s) | 6800 | 6900better |
| Current best price | 327,13 €betterat Amazon.fr · captured 2026-09-13 | 364,89 €at Amazon.fr · captured 2026-09-12 |
| Price per TB | 163,57 €better | 182,45 € |
| Endurance (TBW) | 1480better | 1200 |
| Warranty (years) | 5 | 5 |
| DRAM cache | Yes | Yes |
| NAND type | tlc | tlc |
| Controller | InnoGrit IG5236 | Samsung Pascal |
How these two compare
Sequential throughput
ADATA XPG Gammix S70 Blade 2TB is rated 7400 MB/s read and 6800 MB/s write; Samsung 990 Pro 2TB, 7450 MB/s read and 6900 MB/s write. These are peak sequential rates over PCIe — the speed you would see copying one large file. For boot, app launches and everyday feel, random access matters more than this headline figure.
Price
ADATA XPG Gammix S70 Blade 2TB lists at 327,13 €, or 163,57 € per TB; Samsung 990 Pro 2TB at 364,89 €, or 182,45 € per TB.
Endurance
The makers warrant 1480 TBW on ADATA XPG Gammix S70 Blade 2TB and 1200 TBW on Samsung 990 Pro 2TB — how much writing each is rated to take before the endurance clause lapses. Most desktop workloads never come close, so read the two against each other rather than as a limit you are likely to reach.
DRAM cache
ADATA XPG Gammix S70 Blade 2TB carries a DRAM cache; Samsung 990 Pro 2TB carries a DRAM cache. A DRAM cache holds the drive's mapping table — the index of where each block physically sits — so the controller places and finds data without an extra flash lookup. A DRAM-less drive borrows a little system memory (HMB) or a slice of its own flash instead, and is likelier to slow once a long run of random writes outlasts its fast cache.
NAND, controller and warranty
NAND: ADATA XPG Gammix S70 Blade 2TB uses TLC and Samsung 990 Pro 2TB uses TLC. The tier is bits per cell — SLC, MLC, TLC and QLC from one to four — trading density against endurance and sustained-write speed: QLC is cheapest per gigabyte, TLC the mainstream balance, and the denser the cell the sooner sustained writes taper. On the controller: ADATA XPG Gammix S70 Blade 2TB uses the InnoGrit IG5236, and Samsung 990 Pro 2TB uses the Samsung Pascal. It is the chip handling error correction, wear-levelling and where each write lands — much of how a drive holds up under load — even if the part number on its own tells you little. On the cover: ADATA XPG Gammix S70 Blade 2TB carries a 5-year warranty, Samsung 990 Pro 2TB carries a 5-year warranty. The length is the maker's own vote of confidence, and on an SSD it tends to track the endurance rating — a longer warranty usually meaning more rated writes.
Which to buy
There is no outright answer — each takes something the other gives up. Decide which of those advantages matters for your build; the comparison above lays out both sides.
Common questions about this pair
- Which is faster, ADATA XPG Gammix S70 Blade 2TB or Samsung 990 Pro 2TB?
- ADATA XPG Gammix S70 Blade 2TB is rated 7400 MB/s read and 6800 MB/s write; Samsung 990 Pro 2TB, 7450 MB/s read and 6900 MB/s write. These are peak sequential rates over PCIe — the speed you would see copying one large file. For boot, app launches and everyday feel, random access matters more than this headline figure.
- Which costs less per terabyte, ADATA XPG Gammix S70 Blade 2TB or Samsung 990 Pro 2TB?
- ADATA XPG Gammix S70 Blade 2TB lists at 327,13 €, or 163,57 € per TB; Samsung 990 Pro 2TB at 364,89 €, or 182,45 € per TB.
- Should you buy ADATA XPG Gammix S70 Blade 2TB or Samsung 990 Pro 2TB?
- There is no outright answer — each takes something the other gives up. Decide which of those advantages matters for your build; the comparison above lays out both sides.