Seagate FireCuda 530 2TB vs Silicon Power XS70 2TB
Neither Seagate FireCuda 530 2TB nor Silicon Power XS70 2TB wins outright — each takes something the other gives up, so the pick is which of those you want.
| Specification | SeagateFireCuda 530 2TB | Silicon PowerXS70 2TB |
|---|---|---|
| Capacity (GB) | 2000 | 2000 |
| Sequential read (MB/s) | 7300 | 7300 |
| Sequential write (MB/s) | 6900better | 6800 |
| Current best price | 399,00 €at Amazon.es · captured 2026-09-13 | 299,99 €betterat Amazon.es · captured 2026-09-12 |
| Price per TB | 199,50 € | 150,00 €better |
| DRAM cache | Yes | — |
| NAND type | tlc | tlc |
| Controller | Phison E18 | — |
How these two compare
Sequential throughput
Seagate FireCuda 530 2TB states 7300 MB/s read and 6900 MB/s write; Silicon Power XS70 2TB states 7300 MB/s read and 6800 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.
Price
Seagate FireCuda 530 2TB is 399,00 € (199,50 € per TB); Silicon Power XS70 2TB is 299,99 € (150,00 € per TB).
DRAM cache
On the cache question: Seagate FireCuda 530 2TB carries a DRAM cache, and the catalog does not state whether Silicon Power XS70 2TB carries a DRAM cache. 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: Seagate FireCuda 530 2TB uses TLC, and Silicon Power XS70 2TB 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: Seagate FireCuda 530 2TB uses the Phison E18 and Silicon Power XS70 2TB's controller is not stated. 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. Seagate FireCuda 530 2TB carries a 5-year warranty and Silicon Power XS70 2TB does not state one — the length the maker will stand behind the drive, and usually a proxy for the endurance it is rated to.
Which to buy
It comes down to which you value more: Seagate FireCuda 530 2TB and Silicon Power XS70 2TB each lead the other somewhere the site tracks, and no single measure settles it. Read the sections above for which edge fits your use.
Common questions about this pair
- Which is faster, Seagate FireCuda 530 2TB or Silicon Power XS70 2TB?
- Seagate FireCuda 530 2TB states 7300 MB/s read and 6900 MB/s write; Silicon Power XS70 2TB states 7300 MB/s read and 6800 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.
- Which costs less per terabyte, Seagate FireCuda 530 2TB or Silicon Power XS70 2TB?
- Seagate FireCuda 530 2TB is 399,00 € (199,50 € per TB); Silicon Power XS70 2TB is 299,99 € (150,00 € per TB).
- Should you buy Seagate FireCuda 530 2TB or Silicon Power XS70 2TB?
- It comes down to which you value more: Seagate FireCuda 530 2TB and Silicon Power XS70 2TB each lead the other somewhere the site tracks, and no single measure settles it. Read the sections above for which edge fits your use.