ADATA XPG Gammix S70 Blade 1TB vs Lexar NM790 1TB
Lexar NM790 1TB is at least the equal of the other on every measure that decides this, and ahead on at least one.
| Specification | ADATAXPG Gammix S70 Blade 1TB | LexarNM790 1TB |
|---|---|---|
| Capacity (GB) | 1000 | 1000 |
| Sequential read (MB/s) | 7400 | 7400 |
| Sequential write (MB/s) | 5500 | 6500better |
| Current best price | 164,30 €at Amazon.de · captured 2026-09-13 | 159,99 €betterat Amazon.de · captured 2026-09-13 |
| Price per TB | 164,30 € | 159,99 €better |
| Endurance (TBW) | 740 | 1000better |
| Warranty (years) | 5 | 5 |
| DRAM cache | Yes | No |
| NAND type | tlc | tlc |
| Controller | InnoGrit IG5236 | Maxio MAP1602 |
How these two compare
Sequential throughput
ADATA XPG Gammix S70 Blade 1TB states 7400 MB/s read and 5500 MB/s write; Lexar NM790 1TB states 7400 MB/s read and 6500 MB/s write, both over PCIe. Sequential numbers like these describe large sustained transfers; the responsiveness you notice day to day tracks random access more closely than the peak figures do.
Random access
ADATA XPG Gammix S70 Blade 1TB is rated 740.000 IOPS random read and 740.000 random write; Lexar NM790 1TB, 1.000.000 and 900.000. Random 4K access — many small, scattered operations — is what a drive does booting, launching apps and juggling everyday tasks, and it tracks that feel far more closely than the sequential figures above.
Price
ADATA XPG Gammix S70 Blade 1TB is 164,30 € (164,30 € per TB); Lexar NM790 1TB is 159,99 € (159,99 € per TB).
Endurance
ADATA XPG Gammix S70 Blade 1TB is rated for 740 TBW and Lexar NM790 1TB for 1000 TBW — the total the maker warrants you can write over the drive's life. A typical desktop writes only a few terabytes a year, so either rating is many years of headroom; the figure matters mainly as a relative signal of how hard each is built to be driven.
DRAM cache
On the cache question: ADATA XPG Gammix S70 Blade 1TB carries a DRAM cache, and Lexar NM790 1TB is DRAM-less. The DRAM keeps the flash-translation table close, sparing a lookup on nearly every access; a drive without it leans on host memory or its own flash, which usually shows as slower sustained random writes rather than in the headline sequential numbers.
NAND, controller and warranty
On the flash itself: ADATA XPG Gammix S70 Blade 1TB uses TLC, and Lexar NM790 1TB uses TLC. NAND tiers count bits per cell — more bits pack more capacity into the same silicon but shorten write endurance and slow sustained writes, which is why QLC sits below TLC on lasting performance even when the sequential numbers match. Controller: ADATA XPG Gammix S70 Blade 1TB uses the InnoGrit IG5236 and Lexar NM790 1TB uses the Maxio MAP1602. The controller runs wear-levelling, error correction and the mapping table, so it shapes sustained and random behaviour as much as the flash does — though the model name alone predicts little without testing. ADATA XPG Gammix S70 Blade 1TB carries a 5-year warranty and Lexar NM790 1TB carries a 5-year warranty — the length the maker will stand behind the drive, and usually a proxy for the endurance it is rated to.
Which to buy
Against the other, Lexar NM790 1TB is even or ahead on every tracked measure and behind on none, which is the one case where the choice needs no compromise.
Common questions about this pair
- Which is faster, ADATA XPG Gammix S70 Blade 1TB or Lexar NM790 1TB?
- ADATA XPG Gammix S70 Blade 1TB states 7400 MB/s read and 5500 MB/s write; Lexar NM790 1TB states 7400 MB/s read and 6500 MB/s write, both over PCIe. Sequential numbers like these describe large sustained transfers; the responsiveness you notice day to day tracks random access more closely than the peak figures do.
- How do ADATA XPG Gammix S70 Blade 1TB and Lexar NM790 1TB compare on random access?
- ADATA XPG Gammix S70 Blade 1TB is rated 740.000 IOPS random read and 740.000 random write; Lexar NM790 1TB, 1.000.000 and 900.000. Random 4K access — many small, scattered operations — is what a drive does booting, launching apps and juggling everyday tasks, and it tracks that feel far more closely than the sequential figures above.
- Which costs less per terabyte, ADATA XPG Gammix S70 Blade 1TB or Lexar NM790 1TB?
- ADATA XPG Gammix S70 Blade 1TB is 164,30 € (164,30 € per TB); Lexar NM790 1TB is 159,99 € (159,99 € per TB).
- Should you buy ADATA XPG Gammix S70 Blade 1TB or Lexar NM790 1TB?
- Against the other, Lexar NM790 1TB is even or ahead on every tracked measure and behind on none, which is the one case where the choice needs no compromise.