Crucial P2 250GB NVMe SSD Review (2026)
The Crucial P2 250 GB is an entry-level PCIe 3.0 NVMe SSD with a DRAM-less HMB design, but buyers should be aware of a silent QLC NAND swap that degraded performance in later revisions.
Controller & Memory
The P2 uses Phison's E13T DRAM-less NVMe controller, a single-core design built on 28nm running at 667 MHz with four NAND channels. It relies on NVMe's Host Memory Buffer (HMB) to store flash translation layer mapping tables in system RAM. The original revision shipped with Micron 96-layer TLC NAND, but Crucial silently swapped to QLC NAND in later production runs under the same model number and part number.
The specs listed here reflect the original TLC revision: 2,100 MB/s reads and 1,150 MB/s writes. The QLC revision performs significantly worse, with Tom's Hardware reporting sustained write speeds as low as 40 MB/s -- slower than most hard drives. Because Crucial made no distinction between the two revisions at point of sale, buyers cannot know which version they will receive.
The 250 GB capacity is suited only for a basic boot drive. The P2 is a single-sided M.2 2280 module. Competitors in this segment include the WD Blue SN550 and Kingston NV2, both of which offer more consistent performance across hardware revisions.
Storage Comparisons:
P2 Performance & Benchmarks
On the original TLC revision, the Crucial P2 250 GB is rated for up to 2,100 MB/s sequential reads and 1,150 MB/s sequential writes over PCIe 3.0 x4, with 170,000 random read IOPS and 260,000 random write IOPS. These numbers are modest for a PCIe 3.0 NVMe drive and trail the WD Blue SN550.
Crucial P2 250 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
- Crucial P2 250 GB (this drive): 2,100 MB/s read, 1,150 MB/s write
The E13T controller's firmware is optimized for write performance, which comes at the expense of read latency. Independent reviewers found the P2's read responsiveness lagged behind even some SATA SSDs in game load tests. The Dynamic Write Acceleration SLC cache is small on the 250 GB model, and once it fills, writes drop to native TLC (or QLC) speed.
The QLC NAND swap is the critical concern. Tom's Hardware updated their review to "do not recommend" after discovering the change. The QLC revision's sustained write speed drops to approximately 40 MB/s and read speeds roughly halve compared to the TLC version.
Crucial P2 vs Competitors
See how the P2 stacks up against other M.2 3.0 x 4 drives in our database:
Compare with rival drives:
Endurance, TBW & Warranty
Crucial rates the 250 GB P2 for 150 TBW of write endurance under a five-year limited warranty. The drive includes RAID ECC and Phison's fourth-generation LDPC error correction with multiple adaptation levels. Power loss immunity is integrated. The endurance rating applies to both TLC and QLC revisions, though the QLC version will likely hit its endurance ceiling sooner due to higher write amplification.
Crucial P2 250 GB Specifications
| Category | Value |
|---|---|
| Capacity [?] | 250 GB |
| Interface [?] | M.2 3.0 x 4 |
| Controller [?] | Phison E13 |
| Memory type [?] | Micron TLC |
| DRAM [?] | HMB |
| Read speed (MB/s) [?] | 2100 |
| Write speed (MB/s) [?] | 1150 |
| Read IOPS [?] | 170000 |
| Write IOPS [?] | 260000 |
| Endurance (TBW) [?] | 150 |
| MTBF (million hours) [?] | 1500000 |
| Warranty (years) [?] | 5 |
Verdict: Is the P2 Worth It in 2026?
The Crucial P2 250 GB is difficult to recommend due to the silent QLC NAND swap that degraded performance under the same product name and part number. Buyers who receive the original TLC revision get an adequate budget boot drive; those who receive the QLC revision get substantially worse performance with no way to tell the difference before purchase. The WD Blue SN550 or Kingston NV2 are safer choices in the budget NVMe segment with more consistent quality control.
+ Pros
- Low entry price for NVMe storage
- Single-sided M.2 2280 fits laptops
- Five-year warranty
- Integrated power loss immunity
- Cons
- Silent QLC NAND swap severely degrades performance
- QLC revision writes as slow as 40 MB/s sustained
- Cannot tell TLC vs QLC revision before purchase
- Read latency trails even SATA SSDs in some tests
- Small SLC cache on 250 GB
- DRAM-less HMB design
Buy this or similar SSD Storage:
Video Review
Crucial P2 SSD Review
