Kingston A400
Score: 71/100
Crucial BX500 1TB
Score: 67/100Rankings
The Kingston A400 240 GB SSD is a budget-friendly 2.5-inch SATA drive offering up to 500 MB/s read speed and very low power draw. Its write speed caps at 350 MB/s and endurance is limited to 80 TB TBW. Ideal for users upgrading older laptops or desktops who need a cost-effective OS drive.
The Crucial BX500 1TB SATA SSD offers an affordable upgrade with decent sequential speeds and reliable TLC NAND. Its DRAM-less architecture leads to throttled sustained writes and limited random performance, making it suited for budget-conscious users upgrading from HDDs.
| Attribute | | |
|---|---|---|
240 GB | 1,000 GBbest | |
500 MB/s | 540 MB/sbest | |
350 MB/s | 500 MB/sbest | |
80 TB | 240 TBbest | |
— | 1,500,000 hoursbest | |
— | 0 MBbest | |
| ↓ lower better | 0.279 Wbest | — |
3 yearsbest | 3 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(2) | ||
Sequential Read Speed (MB/s) | 500 MB/s | 540 MB/s |
Sequential Write Speed (MB/s) | 350 MB/s | 500 MB/s |
Storage(1) | ||
Storage Capacity (GB) | 240 GB | 1000 GB |
Reliability(2) | ||
Total Bytes Written (Endurance) (TB) | 80 TB | 240 TB |
Mean Time Between Failures (hours) | 1000000-2000000 hours | 1500000 hours |
Design & Build(3) | ||
Form Factor | 2.5 inch | 2.5-inch |
Weight (g) | 41 g | 34.9 g |
Dimensions (L×W×H) (mm) | 7.1 x 69.9 x 100.1 mm mm | 69.85x6.86x100.33 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers and editors praise the Kingston A400 240GB for its impressive speed uplift over mechanical drives, rugged build quality, and excellent value at a low price. However, they caution that its write speed ceiling, modest 80 TB TBW endurance, and inconsistent MTBF figures make it less suitable for heavy-write or enterprise scenarios.
Everyday users overwhelmingly appreciate the noticeable boost in boot times, quieter operation, and straightforward installation, often describing the drive as feeling truly ten times faster than their old HDDs.
Professional reviewers acknowledge that the BX500 meets its advertised sequential speeds and offers a solid entry-level SSD experience, but they criticize the DRAM-less architecture for causing sustained write speeds to drop to roughly 100 MB/s and for delivering weak random IOPS, making it unsuitable for demanding workloads.
Everyday users generally praise the noticeable boost in boot times, file access, and battery life after upgrading from a hard drive, while recurring complaints focus on performance throttling during prolonged writes and the lack of high-end features.
