Kingston A400
Score: 71/100
Samsung 870 EVO
Score: 79/100Rankings
The Samsung 870 EVO 1TB SATA SSD delivers top-tier SATA performance, a dedicated DRAM cache and strong endurance in a compact 2.5" form factor. It is limited by the SATA III interface and can see latency spikes under heavy sustained writes. Best suited for users upgrading laptops or desktops who need reliable, high-capacity SATA storage.
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.
| Attribute | | |
|---|---|---|
240 GBbest | 1 GB | |
500 MB/s | 560 MB/sbest | |
350 MB/s | 530 MB/sbest | |
— | 98,000 IOPSbest | |
— | 88,000 IOPSbest | |
80 TB | 600 TBbest | |
— | 1,500,000 hoursbest | |
— | 1,024 MBbest |
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 | 560 MB/s |
Sequential Write Speed (MB/s) | 350 MB/s | 530 MB/s |
Storage(1) | ||
Storage Capacity (GB) | 240 GB | 1 GB |
Reliability(3) | ||
Total Bytes Written (Endurance) (TB) | 80 TB | 600 TB |
Mean Time Between Failures (hours) | 1000000-2000000 hours | 1500000 hours |
Operating Temperature (°C) | 0-70 °C | -40-85 °C |
Power & Reliability(1) | ||
Idle Power Consumption (W) | 0.195 W | 0.03 W |
Design & Build(3) | ||
Form Factor | 2.5 inch | 2.5-inch |
Weight (g) | 41 g | 86 g |
Dimensions (L×W×H) (mm) | 7.1 x 69.9 x 100.1 mm mm | 100.08x70.10x6.86 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.
Reviewers consistently describe the 870 EVO as the pinnacle of SATA SSD performance, applauding its ability to hit the full 560/530 MB/s sequential ratings and its markedly improved QD1 random reads. They also commend its endurance and the inclusion of DRAM, while noting that the drive remains bound by SATA's bandwidth ceiling and offers few architectural leaps over the 860 EVO.
Consumers love the noticeable boost in boot speed, the silent operation, and the ease of use provided by Samsung Magician. The most common complaints revolve around occasional compatibility tweaks on older hardware, the lack of flashy pricing incentives, and the perception that the performance gains are modest compared to a jump to NVMe.
“fastest SATA SSD yet”
“fast boot times”
