Biostar M700 512GB — Entry-Level PCIe 3.0 NVMe SSD (2026)
The Biostar M700 512GB is a no-frills PCIe 3.0 NVMe SSD that offers double the capacity of the 256GB model at a budget-friendly price point.
Controller & Memory
The Biostar M700 512GB uses a Silicon Motion SM2263XT controller paired with Intel 3D TLC NAND. Like the 256GB variant, it is a DRAM-less design that relies on HMB (Host Memory Buffer), borrowing a small amount of system RAM for its flash translation layer. This keeps costs down but means random I/O performance trails drives with dedicated DRAM caches.
Launched in November 2019, the M700 series was Biostar's entry into the mainstream M.2 NVMe market. The 512GB variant is rated at 2,000 MB/s sequential reads and 1,600 MB/s writes — a step up from the 256GB model's 1,850/950 MB/s. The larger NAND configuration on the 512GB drive allows for more parallelism across the NAND dies, which explains the write speed improvement.
At just 3.5 mm thick in a standard M.2 2280 form factor, the M700 fits in virtually any motherboard slot, including thin mini-ITX builds and compact desktops. It supports AES-256 encryption and end-to-end data protection.
In the budget segment, the M700 competes against the Kingston A2000, WD Blue SN550, and Crucial P1. The 512GB capacity makes it more practical as a primary drive than the 256GB variant, offering enough space for the OS, applications, and a modest game library.
Storage Comparisons:
M700 Performance & Benchmarks
The Biostar M700 512GB is rated at up to 2,000 MB/s sequential reads and 1,600 MB/s sequential writes. These are entry-tier numbers for PCIe 3.0 — the interface can handle roughly 3,500 MB/s, so the M700 uses about 57 percent of the available bandwidth. That's fine for a budget drive, but it means you're leaving performance on the table compared to mid-range PCIe 3.0 options like the Kingston A2000, which pushes past 2,000 MB/s reads and 1,600 MB/s writes even on its lower capacities.
Biostar M700 512 GB vs M.2 3.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 3.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- ADATA SX 8800 Pro 512 GB: 3,500 MB/s read, 2,700 MB/s write
- ADATA SX 8800 Pro 1 TB: 3,500 MB/s read, 2,700 MB/s write
- ADATA XPG Spectrix S40G RGB 256 GB: 3,500 MB/s read, 3,000 MB/s write
- ADATA XPG Spectrix S40G RGB 512 GB: 3,500 MB/s read, 3,000 MB/s write
- Biostar M700 512 GB (this drive): 2,000 MB/s read, 1,600 MB/s write
Random read and write IOPS are not officially published for this drive, which is typical for budget models that don't prioritize stochastic performance. The DRAM-less HMB design is the main limiting factor — without a dedicated memory buffer for the flash translation layer, the M700 will show noticeable performance degradation during sustained write workloads that exhaust the SLC cache.
For everyday tasks — booting the OS, launching applications, loading games — the drive is serviceable. The 1,600 MB/s write speed on the 512GB model is a meaningful improvement over the 256GB's 950 MB/s, making this capacity more usable for occasional large file transfers. But anyone running sustained write workloads should expect speeds to drop well below the advertised burst figures once the SLC cache fills. Independent reviews of this specific model are scarce.
Biostar M700 vs Competitors
See how the M700 stacks up against other M.2 3.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
The Biostar M700 carries a 3-year warranty, which is standard for budget-tier SSDs but shorter than the 5-year coverage offered by mainstream competitors like the Kingston A2000 and WD Blue SN550. The endurance rating (TBW) for the 512GB variant has not been published by Biostar, which is unusual — even most budget drives disclose TBW figures. For context, comparable 512GB TLC drives typically carry 250-300 TBW. Without an official number, buyers should treat this as a light-to-moderate use drive rather than a heavy-write workstation disk. At typical consumer write loads of 20-30 GB per day, a 512GB TLC drive of this class would reasonably last several years, but that's an estimate.
Biostar M700 512 GB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 512 GB |
| Interface [?] | M.2 3.0 x 4 |
| Controller [?] | Silicon Motion SM2263XT |
| Memory type [?] | Intel 3D TLC |
| DRAM [?] | 32MB - 64MB Host Memory Buffer |
| Read speed (MB/s) [?] | 2000 |
| Write speed (MB/s) [?] | 1600 |
| Read IOPS [?] | 240000 |
| Write IOPS [?] | 260000 |
| Endurance (TBW) [?] | 300 |
| MTBF (million hours) [?] | 1500000 |
| Warranty (years) [?] | 3 |
Verdict: Is the M700 Worth It in 2026?
The Biostar M700 512GB is a budget PCIe 3.0 NVMe SSD for buyers who need more capacity than 256GB without spending on mid-range alternatives. The DRAM-less design, unremarkable speeds, and 3-year warranty place it below drives like the Kingston A2000 and WD Blue SN550. It's a functional boot drive with enough space for games and applications, but if you can find similarly priced alternatives, they'll likely deliver better performance and longer warranty coverage.
+ Pros
- Standard M.2 2280 form factor fits most motherboards
- AES-256 encryption support
- Slim 3.5 mm profile suits compact builds
- 512GB capacity practical for OS plus games
- Intel 3D TLC NAND (not QLC)
- Faster writes than 256GB variant (1,600 vs 950 MB/s)
- Cons
- DRAM-less HMB design limits sustained performance
- No published TBW endurance rating
- 3-year warranty shorter than competitors' 5 years
- Limited independent reviews available
- Slower than similarly priced Kingston A2000 and WD Blue SN550
Buy this or similar SSD Storage:
Video Review
BIOSTAR M700 512 GB PCIe NVMe opinion
