Kingston A400 240GB
Score: 47/100
Samsung 870 EVO 500GB
Score: 78/100Rankings
The Samsung 870 EVO 500GB SATA SSD provides dependable SATA III performance, strong random IOPS, and robust encryption, making it a solid upgrade for legacy PCs and laptops.
The Kingston A400 240 GB SSD is an entry-level SATA drive that dramatically speeds up older PCs at a low price, offering solid reliability and low power use. Its lack of DRAM and modest endurance make it unsuitable for demanding workloads.
| Attribute | | |
|---|---|---|
240 GB | 500 GBbest | |
500 MB/s | 560 MB/sbest | |
350 MB/s | 530 MB/sbest | |
— | 98,000 IOPSbest | |
— | 88,000 IOPSbest | |
80 TBW | 300 TBWbest | |
3 yearsbest | 3 yearsbest | |
| ↓ lower better | 0.279 Wbest | 2.2 W |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(4) | ||
Sequential Read Speed (MB/s) | 500 MB/s | 560 MB/s |
Sequential Write Speed (MB/s) | 350 MB/s | 530 MB/s |
Interface | SATA III | SATA 6 Gb/s |
DRAM Cache (Yes/No) | false | true |
Storage(5) | ||
Capacity (GB) | 240 GB | 500 GB |
Form Factor | 2.5 inch | 2.5-inch |
NAND Type | 3D TLC NAND | 3-bit MLC |
Endurance (TBW) (TBW) | 80 TBW | 300 TBW |
MTBF (hours) | 1000000 hours | 1500000 hours |
Power & Energy(2) | ||
Idle Power Consumption (W) | 0.195 W | 0.03 W |
Active Power Consumption (W) | 0.279 W | 2.2 W |
Design & Build(2) | ||
Weight (g) | 41 g | 45.0 g |
Thickness (mm) | 7.0 mm | 69.85 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers position the A400 as a solid, budget-friendly SSD that revitalises older PCs with noticeable speed gains, praising its plug-and-play ease and durability, but note its lack of DRAM cache and TLC-only NAND limit sustained performance, making it unsuitable for demanding or professional workloads.
Everyday users overwhelmingly appreciate the dramatic boot-time reduction and overall responsiveness, citing easy installation and reliable day-to-day operation, while common complaints revolve around occasional drive failures after a few years, slow RMA handling, and reduced write performance under heavy loads.
“a premier option in the world of SATA SSDs”
“faster boot times”
Professional reviewers praise the 870 EVO as a top-tier SATA SSD with excellent performance, high endurance, and strong reliability thanks to Samsung's V-NAND and MKX controller.
Users report dramatic speed gains after upgrading from HDDs, noting near-instant boot times and smoother applications, while noting the SATA speed ceiling and missing accessories.
