KingSpec P3 128GB vs Silicon Power Ace A55 128GB
At least one of these has no price the site currently tracks, so what follows weighs specifications alone.
| Specification | KingSpecP3 128GB | Silicon PowerAce A55 128GB |
|---|---|---|
| Capacity (GB) | 128 | 128 |
| Sequential read (MB/s) | 580better | 560 |
| Sequential write (MB/s) | 570better | 480 |
| Current best price | — | — |
| Price per TB | — | — |
| Endurance (TBW) | 30 | 240better |
| Warranty (years) | 3 | 3 |
| NAND type | — | tlc |
How these two compare
Sequential throughput
KingSpec P3 128GB reads at 580 MB/s and writes at 570 MB/s; Silicon Power Ace A55 128GB reads at 560 MB/s and writes at 480 MB/s. Both ride the SATA bus, which caps sequential transfer near 550 MB/s in either direction — the ceiling every SATA drive works against — so what more decisively separates them is sustained and random behaviour, the DRAM cache, and endurance.
Endurance
KingSpec P3 128GB is rated for 30 TBW and Silicon Power Ace A55 128GB for 240 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.
NAND and warranty
On the flash itself: KingSpec P3 128GB's NAND is not stated, and Silicon Power Ace A55 128GB 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. KingSpec P3 128GB carries a 3-year warranty and Silicon Power Ace A55 128GB carries a 3-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
The site holds no current price for at least one of these, so it cannot call the buy on cost. Judge them on the specifications above — at the same capacity and interface, two drives usually part on things like the DRAM cache, the NAND tier, endurance and warranty, so weigh whichever of those the sections above report.
Common questions about this pair
- Which is faster, KingSpec P3 128GB or Silicon Power Ace A55 128GB?
- KingSpec P3 128GB reads at 580 MB/s and writes at 570 MB/s; Silicon Power Ace A55 128GB reads at 560 MB/s and writes at 480 MB/s. Both ride the SATA bus, which caps sequential transfer near 550 MB/s in either direction — the ceiling every SATA drive works against — so what more decisively separates them is sustained and random behaviour, the DRAM cache, and endurance.
- Should you buy KingSpec P3 128GB or Silicon Power Ace A55 128GB?
- The site holds no current price for at least one of these, so it cannot call the buy on cost. Judge them on the specifications above — at the same capacity and interface, two drives usually part on things like the DRAM cache, the NAND tier, endurance and warranty, so weigh whichever of those the sections above report.