Western Digital WD Green
Score: 63/100
Samsung 990 PRO
Score: 81/100Rankings
The Samsung 990 PRO 1TB is a high-performance PCIe 4.0 NVMe SSD delivering up to 7,450 MB/s read and 6,900 MB/s write speeds with strong security features. Its heatsink-less design and limited pSLC cache can limit sustained heavy workloads. Best suited for gamers, content creators, and professionals who need maximum PCIe 4 throughput on desktops or laptops with adequate cooling.
The WD Green 1TB SATA SSD offers up to 545 MB/s sequential reads with ultra-low power consumption, making it a cost-effective choice for laptops and secondary storage. Its DRAM-less architecture and modest 400 TBW endurance limit performance for demanding tasks, and it's less suited as a primary boot drive. Best for budget-conscious users needing basic storage and long battery life.
| Attribute | | |
|---|---|---|
1,000 GB | 1,024 GBbest | |
545 MB/s | 7,450 MB/sbest | |
525 MB/s | 6,900 MB/sbest | |
— | 1,200,000 IOPSbest | |
— | 1,550,000 IOPSbest | |
400 TB | 600 TBbest | |
1,000,000 hours | 1,500,000 hoursbest | |
0 MB | 1,024 MBbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Connectivity(1) | ||
Interface | SATA III 6Gb/s | PCIe 4.0 x4 |
Performance(3) | ||
Sequential Read Speed (MB/s) | 545 MB/s | 7450 MB/s |
Sequential Write Speed (MB/s) | 525 MB/s | 6900 MB/s |
DRAM Cache (MB) | 0 MB | 1024 MB |
Storage(1) | ||
Storage Capacity (GB) | 1000 GB | 1024 GB |
General(1) | ||
Warranty (years) | 3 years | 5 years |
Reliability(2) | ||
Total Bytes Written (Endurance) (TB) | 400 TB | 600 TB |
Mean Time Between Failures (hours) | 1000000 hours | 1500000 hours |
Power & Reliability(1) | ||
Idle Power Consumption (W) | 0.03 W | 0.05 W |
Design & Build(3) | ||
Form Factor | 2.5" 7mm | M.2 2280 |
Weight (g) | 32.6586 g | 9.1 g |
Dimensions (L×W×H) (mm) | 100.6x69.9x7.1 mm mm | 80.3×22.1×2.3 mm mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers position the WD Green 1TB as a budget-oriented SATA SSD that excels in power efficiency and price, but its DRAM-less design and modest endurance make it unsuitable for high-performance or write-heavy scenarios.
General users praise the drive for its rapid game loading, smooth everyday performance, and easy installation, seeing it as a solid value for a 2 TB capacity. Recurring concerns revolve around thermal throttling without a heatsink and occasional slowdowns during long write operations, especially for those expecting flagship-level consistency.
Professional reviewers commend the 990 PRO for its exceptional speed, gaming-optimized random performance, and strong reliability, while noting the smaller DRAM cache and lack of a heatsink as potential drawbacks under heavy sustained loads.
Everyday users praise the drive's blazing speed and security, but note concerns about the smaller DRAM cache and possible throttling without a heatsink.
