# ADATA Swordfish 1TB Review — Budget PCIe 3.0 NVMe SSD (2026)

The ADATA Swordfish 1TB is the sweet-spot capacity in ADATA's budget PCIe 3.0 lineup, offering enough room for the OS, applications, and a decent game library at an entry-level price.

Quick answer: The ADATA Swordfish 1TB is a reasonable budget NVMe SSD for users who need ample storage without paying premium prices. Its 1,800/1,200 MB/s speeds are a clear step up from SATA, but they lag significantly behind mainstream PCIe 3.0 alternatives like the Samsung 980 and WD Blue SN570, both of which offer roughly double the read speed for a marginal price increase. The drive's sustained write performance collapses under heavy loads, making it unsuitable for content creation or large-file workflows. It works well as a budget boot drive or game library, but buyers should compare current pricing — if a faster 1 TB drive costs only slightly more, it is a considerably better long-term investment.

## Specifications

| Specification | Value |
| --- | --- |
| Capacity | 1 TB |
| Interface | M.2 3.0 x 4 |
| Controller | Realtek RTS5763DL |
| Memory type | ADATA 3D TLC |
| DRAM cache | Host Memory Buffer |
| Sequential read | 1800 MB/s |
| Sequential write | 1200 MB/s |
| Random read IOPS | 180000 |
| Random write IOPS | 180000 |
| Endurance | 540 TBW |
| MTBF | 1.8 |
| Warranty | 5 years |

## Performance

The ADATA Swordfish 1TB is rated for 1,800 MB/s sequential reads and 1,200 MB/s sequential writes, with up to 180,000 random read and write IOPS. These are manufacturer-rated best-case figures, achievable when data fits within the drive's SLC cache. For light desktop workloads, the 1,800 MB/s reads deliver a roughly threefold improvement over SATA III SSDs, which cap out near 550 MB/s. Boot times, application launches, and general system responsiveness all benefit from the NVMe interface.

Compared to the PCIe 3.0 x4 ceiling of approximately 3,500 MB/s, the Swordfish operates at roughly half speed. Mainstream PCIe 3.0 drives like the WD Blue SN570 and Samsung 980 reach 3,000–3,500 MB/s reads and 2,500–3,000 MB/s writes on their 1 TB variants, making the Swordfish look dated in a side-by-side comparison. The HMB architecture introduces a dependency on proper system-level support — if the host does not handle HMB correctly, random I/O performance degrades.

Under sustained write loads, the Swordfish's entry-level hardware reveals its limitations clearly. Independent testing by StorageReview found that the drive's 4K random write performance collapsed to roughly 9,710 IOPS under heavy workload stress, accompanied by extreme latency spikes and near-complete throughput stalls. The SLC cache is sized for burst workloads, not sustained throughput, and once it exhausts, the underlying TLC NAND simply cannot write fast enough. This is a non-issue for web browsing, office work, and light gaming, where write bursts are small and infrequent. But anyone doing sustained large-file transfers — video editors, streamers capturing gameplay, or anyone regularly moving tens of gigabytes — will experience a sharp slowdown once the cache fills.

## Endurance, TBW & Warranty

ADATA backs the Swordfish 1TB with a five-year limited warranty, capped at 540 TBW (terabytes written). At a typical consumer write workload of 20 GB per day, 540 TBW translates to approximately 74 years of use — well beyond the warranty period. Even at a heavier 50 GB per day, the drive would last roughly 30 years. The TBW rating is modest for a 1 TB NVMe drive — the Samsung 980 1TB is rated at 600 TBW, for comparison — but it is entirely adequate for the Swordfish's target audience. ADATA provides the SSD Toolbox utility for monitoring drive health, checking remaining endurance, running diagnostics, and applying firmware updates. The five-year warranty covers manufacturing defects and does not extend to drives that exceed their TBW rating within the warranty period.

## Pros and Cons

**Pros:**

- 1,800 MB/s reads, 3x faster than SATA SSDs
- 1 TB capacity fits OS, apps, and game library
- Five-year warranty from ADATA
- HMB design keeps power draw low for laptops
- AES 256-bit encryption support
- 540 TBW endurance suits heavy daily use
**Cons:**

- 1,800 MB/s reads well below PCIe 3.0 ceiling
- DRAM-less design with HMB dependency
- Severe write performance collapse under sustained loads
- No included heatsink
- Faster 1TB alternatives available at similar prices


## Verdict

The ADATA Swordfish 1TB is a reasonable budget NVMe SSD for users who need ample storage without paying premium prices. Its 1,800/1,200 MB/s speeds are a clear step up from SATA, but they lag significantly behind mainstream PCIe 3.0 alternatives like the Samsung 980 and WD Blue SN570, both of which offer roughly double the read speed for a marginal price increase. The drive's sustained write performance collapses under heavy loads, making it unsuitable for content creation or large-file workflows. It works well as a budget boot drive or game library, but buyers should compare current pricing — if a faster 1 TB drive costs only slightly more, it is a considerably better long-term investment.

## Frequently Asked Questions

### Is the ADATA Swordfish 1TB good for gaming?

The ADATA Swordfish 1TB is a solid budget gaming drive. The 1 TB capacity provides enough space for the operating system and a dozen or more modern games, and the 1,800 MB/s reads deliver faster load times than any SATA SSD. However, the drive's sustained write performance drops significantly under heavy loads, so installing multiple large games simultaneously will take longer than on a mainstream NVMe. If gaming is your primary concern and budget allows, the WD Blue SN570 1TB offers roughly double the read speed for faster load times and quicker game installs.

### Is the ADATA Swordfish 1TB compatible with the PS5?

No, the ADATA Swordfish 1TB is not compatible with the PlayStation 5. Sony requires a PCIe 4.0 NVMe M.2 SSD with sequential reads of at least 5,500 MB/s for PS5 storage expansion. The Swordfish is a PCIe 3.0 drive rated at only 1,800 MB/s reads, far below Sony's minimum. It also ships without a heatsink, which the PS5 mandates for M.2 expansion drives. The Swordfish works fine as a PS4 hard drive replacement, but it cannot expand PS5 storage.

### Does the ADATA Swordfish 1TB have a DRAM cache?

No, the ADATA Swordfish 1TB does not have a dedicated DRAM cache. Instead, it uses the NVMe Host Memory Buffer (HMB) protocol, which allocates a small portion of system RAM — typically a few megabytes — to manage the flash translation layer. HMB provides better performance than traditional DRAM-less SSDs for light workloads, but it cannot match the consistency of a true DRAM cache under sustained write loads. The Swordfish's 4K random write performance drops sharply once the SLC cache exhausts, a known limitation of budget HMB-based drives.

### What is the TBW endurance of the ADATA Swordfish 1TB?

ADATA rates the Swordfish 1TB at 540 TBW (terabytes written), covered by a five-year limited warranty. At a typical consumer write workload of 20 GB per day, 540 TBW would last approximately 74 years. Even at 50 GB per day, the drive would last roughly 30 years. For comparison, the Samsung 980 1TB is rated at 600 TBW, making the Swordfish's endurance slightly below its mainstream competitors but still entirely adequate for the drive's intended audience of budget desktop users and casual gamers.

### Does the ADATA Swordfish 1TB need a heatsink?

The ADATA Swordfish 1TB does not ship with a heatsink, and it does not strictly require one for safe operation. As an entry-level PCIe 3.0 drive with modest 1,800/1,200 MB/s speeds, the Swordfish does not generate the same thermal output as high-performance NVMe drives that push 5,000–7,000 MB/s. Most modern motherboards include built-in M.2 heatsinks, and if yours does, using one is good practice. If installing the drive in a laptop or a motherboard without an M.2 heatsink, the Swordfish will operate safely under normal desktop workloads without additional cooling.

### How does the ADATA Swordfish 1TB compare to the WD Blue SN570 1TB?

The ADATA Swordfish 1TB and WD Blue SN570 1TB compete in the same general price range, but the SN570 is significantly faster. The SN570 is rated at roughly 3,500/3,000 MB/s compared to the Swordfish's 1,800/1,200 MB/s — nearly double the read speed and 2.5x the write speed. Both are DRAM-less drives, but the SN570 uses a more capable controller and NAND combination. Both drives share similar sustained write limitations under extreme loads, though the SN570's larger SLC cache gives it more headroom. If the price difference is small, the SN570 is the clearly superior drive.

### Is the ADATA Swordfish 1TB good for a laptop upgrade?

Yes, the ADATA Swordfish 1TB is a reasonable laptop upgrade. Its M.2 2280 form factor and single-sided PCB fit most laptops with an M.2 NVMe slot. The HMB design keeps power consumption low, which is beneficial for laptop battery life. The 1 TB capacity is a meaningful upgrade over the 256 GB or 512 GB drives that ship in many mid-range laptops. However, if your laptop supports PCIe 4.0, a faster drive like the WD Blue SN580 would deliver noticeably better performance for a similar price.

### Does the ADATA Swordfish 1TB support hardware encryption?

Yes, the ADATA Swordfish 1TB supports AES 256-bit hardware encryption. This is a feature not always found on budget NVMe drives, and it enables full-disk encryption without the performance overhead of software-based encryption. To use hardware encryption, you will need to configure it through your operating system's disk management tools or through ADATA's SSD Toolbox utility. Hardware encryption is useful for users who need to protect sensitive data on a portable device like a laptop.

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Last updated: 2026-05-17. Source: https://ssdrive.net/adata-swordfish-1-tb