Crucial X6 1TB
Score: 34/100
UGREEN 1TB SSD
Score: 52/100Rankings
UGREEN's 1 TB Portable SSD delivers industry-leading 2,000 MB/s throughput with a dual-cooling aluminum chassis, but its heavier weight and lack of rugged ratings make it less suited for harsh environments.
The Crucial X6 1TB is an affordable, ultra-light portable SSD with decent everyday performance, but its QLC NAND and DRAM-less architecture prevent it from delivering the high sustained speeds some users expect.
| Attribute | | |
|---|---|---|
1,000 GBbest | 1,000 GBbest | |
540 MB/s | 2,000 MB/sbest | |
212 MB/s | 2,000 MB/sbest | |
| ↓ lower better | 40 gbest | 90 g |
36 monthsbest | 36 monthsbest | |
| ↓ lower better | — | 45 °Cbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Performance(3) | ||
Interface | USB 3.2 Gen 2 | USB 3.2 Gen 2x2 |
Sequential Read Speed (MB/s) | 540 MB/s | 2000 MB/s |
Sequential Write Speed (MB/s) | 212 MB/s | 2000 MB/s |
Build & Design(2) | ||
Weight (g) | 40 g | 90 g |
Form Factor | portable | Portable |
Power & Connectivity(1) | ||
Included Cable Type | USB-C to USB-C | USB‑C |
Compatibility(1) | ||
Operating System Compatibility | Windows, macOS, Android, iOS, consoles | Windows, macOS, Linux, Xbox Series X/S, PS5, PS4, iPhone 16, tablets |
Technical Specs(1) | ||
Controller | Silicon Motion SM2259XT | SM2320G |
Products in the top-left offer the best value (high score, low price).
Professional reviewers consider the X6 a serviceable, budget-friendly portable SSD that works well for everyday tasks but is hampered by its SATA-based internals and DRAM-less design, recommending PCIe-based alternatives for power users.
Consumers appreciate the X6's reliability, pocket-size convenience, and price, though many note that real-world speeds fall short of the advertised 800 MB/s and that performance drops after the cache is exhausted.
Professional reviewers praise the Ugreen 1TB Portable SSD for its industry-leading 2,000 MB/s throughput, effective dual-cooling design that avoids throttling, and advanced error-correction features, positioning it as a premium alternative to the Samsung T7 Shield and similar high-speed SSDs.
Everyday users consistently commend the drive's lightning-fast transfers, pocket-size form factor, and plug-and-play experience across PCs, consoles and iPhones, while noting the need for a USB 3.2 Gen 2x2 host to unlock full speed and the absence of a transport case.
“smaller than car keys”
“perfect for travel”
“Crucial SSDs have never failed me.”
