
Crucial MX500 500GB
Score: 79/100
Crucial BX500 1TB
Score: 67/100Rankings

The Crucial MX500 500 GB is a 2.5-inch SATA SSD that delivers near-maximum SATA-III speeds, includes a 256 MB DRAM cache and AES-256 hardware encryption, and offers 180 TBW endurance with a 5-year warranty. Its drawbacks are the inherent speed ceiling of SATA and occasional write-performance throttling under heavy mixed loads. It is best suited for budget-conscious desktop or notebook upgrades seeking reliable, secure storage.

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 | ![]() | ![]() |
|---|---|---|
500 GB | 1,000 GBbest | |
560 MB/sbest | 540 MB/s | |
510 MB/sbest | 500 MB/s | |
95,000 IOPSbest | — | |
90,000 IOPSbest | — | |
180 TB | 240 TBbest | |
1,800,000 hoursbest | 1,500,000 hours | |
256 MBbest | 0 MB |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Performance(3) | ||
Sequential Read Speed (MB/s) | 560 MB/s | 540 MB/s |
Sequential Write Speed (MB/s) | 510 MB/s | 500 MB/s |
DRAM Cache (MB) | 256 MB | 0 MB |
Storage(1) | ||
Storage Capacity (GB) | 500 GB | 1000 GB |
General(1) | ||
Warranty (years) | 5 years | 3 years |
Reliability(2) | ||
Total Bytes Written (Endurance) (TB) | 180 TB | 240 TB |
Mean Time Between Failures (hours) | 1800000 hours | 1500000 hours |
Design & Build(2) | ||
Weight (g) | 39 g | 34.9 g |
Dimensions (L×W×H) (mm) | 70×7.1×103 mm mm | 69.85x6.86x100.33 mm |


Products in the top-left offer the best value (high score, low price).

Professional reviewers consider the MX500 an ideal HDD replacement, praising its efficient SM2258 controller, strong sequential and random performance, and robust security features. However, they note that its mixed-workload write speeds and 4K random read numbers fall short of some competitors, and the SATA interface limits its appeal for high-performance scenarios.
Everyday users overwhelmingly praise the MX500 for its noticeable boost in boot speed, system responsiveness, and ease of installation, especially valuing the included cloning software.

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.
