MSI Spatium M450 250GB Review — Entry-Level PCIe 4.0 NVMe SSD
The MSI Spatium M450 250GB is an entry-level PCIe Gen4 NVMe SSD from MSI, built around the Phison E19T controller for affordable 3600 MB/s reads at a budget capacity.
MSI's Spatium storage brand targets the mainstream market, and the M450 is the entry point into the company's PCIe 4.0 lineup. The drive uses the Phison E19T controller — a DRAM-less, cost-optimized Gen4 x4 silicon designed for budget builds and laptop upgrades. The E19T is Phison's answer to the growing demand for affordable PCIe 4.0 storage that outperforms PCIe 3.0 drives without reaching flagship pricing tiers.
The E19T controller delivers rated sequential reads of 3,600 MB/s and writes of 3,000 MB/s over an M.2 PCIe 4.0 x4 NVMe interface. These numbers are modest within the Gen4 stack — the E19T is an entry-level silicon, not a flagship — but they exceed the practical limits of PCIe 3.0 x4 (approximately 3,500 MB/s maximum). For everyday desktop use, the M450 feels responsive: OS boot, application launches, and game loading are all fast enough that most users will not notice the difference between this and a 7,000 MB/s flagship drive.
The DRAM-less design relies on Host Memory Buffer architecture, borrowing a small slice of system RAM for flash translation layer management. For light to moderate use — web browsing, office applications, casual gaming — HMB provides adequate responsiveness. Under sustained mixed workloads, however, the lack of dedicated DRAM results in higher latency compared to DRAM-equipped drives. The 250 GB capacity is on the smaller side by modern standards, suitable for a boot drive with light storage needs or a secondary volume for specific applications.
Against competitors, the M450 250 GB sits alongside the Kingston NV2, TeamGroup MP33, and WD Blue SN570 in the value-oriented PCIe 4.0 segment. MSI's brand recognition and distribution through major retailers provide an availability advantage in many markets.
✅ Storage Comparisons:
🚀 Performance and benchmarks
Sequential performance of 3,600 MB/s read and 3,000 MB/s write places the M450 at the entry level of the PCIe 4.0 stack. The Phison E19T controller is designed for cost efficiency rather than maximum throughput, making it suitable for budget desktop builds and laptop upgrades where PCIe 4.0 compatibility matters more than benchmark leadership. In real-world use, OS boot completes quickly, applications launch responsively, and game loading is fast — the gap between 3,600 MB/s and flagship 7,000 MB/s is simply not perceptible in these everyday scenarios.
MSI Spatium M450 250 GB vs M.2 4.0 x 4 peers
Switch between sequential throughput and random IOPS to see how this drive stacks up against other M.2 4.0 x 4 SSDs in our database. The highlighted bar is the drive on this page — click any other bar to open that drive.
- PNY XLR8 CS3140 1 TB: 7,500 MB/s read, 5,650 MB/s write
- PNY XLR8 CS3140 2 TB: 7,500 MB/s read, 6,850 MB/s write
- Asgard AN4 512 GB: 7,500 MB/s read, 5,500 MB/s write
- Asgard AN4 1 TB: 7,500 MB/s read, 5,500 MB/s write
- MSI Spatium M450 250 GB (this drive): 3,600 MB/s read, 3,000 MB/s write
The DRAM-less HMB design works well for light tasks but shows limitations under sustained mixed workloads. Random 4K performance on HMB drives is adequate for everyday use but may exhibit increased latency when the drive handles simultaneous reads and writes. The dynamic SLC cache provides burst write acceleration for typical consumer use, and once exhausted, direct write speeds fall to the NAND's native rate. Thermally, the E19T runs cool — it is a power-efficient entry-level controller that does not require aggressive cooling, making it a good fit for compact builds and thin laptops.
🖥️ Endurance and warranty
MSI provides warranty coverage on the Spatium M450 consistent with its entry-level positioning in the product lineup. Specific warranty duration and endurance figures for the 250 GB model are not widely published in MSI public documentation for this budget-oriented solid state drive option. For comparable 250 GB entry-level drives in this segment, typical endurance ranges from 100 to 200 TBW with a three- to five-year warranty period. For typical consumer use of 10–20 GB written per day, any reasonable endurance estimate would comfortably exceed the warranty period. MTBF is not separately published for this specific capacity variant.
📊 Specs
| Category | Value |
|---|---|
| Capacity [?] | 250 GB |
| Interface [?] | M.2 4.0 x 4 |
| Controller [?] | Phison E19T |
| Memory type [?] | TLC |
| DRAM [?] | HMB |
| Read speed (MB/s) [?] | 3600 |
| Write speed (MB/s) [?] | 3000 |
| Read IOPS [?] | 420000 |
| Write IOPS [?] | 550000 |
| Endurance (TBW) [?] | 600 |
| MTBF (million hours) [?] | n/a |
| Warranty (years) [?] | 5 |
Conclusion
The MSI Spatium M450 250GB is a competent entry-level PCIe 4.0 SSD that delivers affordable Gen4 compatibility through the power-efficient Phison E19T controller. The 250 GB capacity is modest by modern standards but sufficient for a boot drive or light storage needs in budget builds. The DRAM-less HMB design keeps costs down while maintaining acceptable everyday responsiveness for general desktop and office use. For budget-conscious builders who want PCIe Gen4 compatibility without flagship pricing, the M450 is a sensible option from a well-known hardware brand with broad retail distribution through major computer component retailers worldwide.
+ Pros
- Entry-level PCIe 4.0 pricing
- Phison E19T power-efficient controller
- 3,600 MB/s read exceeds PCIe 3.0 limits
- E19T runs cool without heatsink
- MSI brand with wide retail distribution
- Cons
- DRAM-less HMB design increases latency
- 250 GB capacity modest for modern use
- Warranty and endurance not well-publicised
- Entry-level speeds below mid-range Gen4
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