Lexar Gold 1800x 64GB
Score: 100/100
Silicon Power 512GB
Score: 100/100Rankings
The Lexar Professional 1800x 64 GB SDXC UHS-II card delivers top-tier read/write speeds and V60 video performance for 4K workflows, packaged in a rugged, weather-proof design with a lifetime warranty.
A 512 GB microSDXC U3/V30/A2 card delivering up to 170 MB/s read and 150 MB/s write, rugged durability and high-endurance options, suited for 4K video, Android apps and demanding outdoor use.
| Attribute | | |
|---|---|---|
64 GB | 512 GBbest | |
280 MB/sbest | 170 MB/s | |
180 MB/sbest | 150 MB/s | |
— | 5 yearsbest | |
| ↓ lower better | 2 g | 0.3 gbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage & Capacity(2) | ||
Capacity (GB) | 64 GB | 512 GB |
Card Type | SDXC | microSDXC |
Performance(4) | ||
Video Speed Class | V60 | V30 |
Maximum Read Speed (MB/s) | 280 MB/s | 170 MB/s |
Maximum Write Speed (MB/s) | 180 MB/s | 150 MB/s |
Bus Interface | UHS-II | UHS-I |
Warranty(1) | ||
Warranty Period (years) | Lifetime years | 5 years |
Physical(1) | ||
Weight (g) | 2 g | 0.3 g |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Lexar 1800x for its pro-level reliability, fast 280 MB/s read speed and V60 rating, while noting performance hinges on UHS-II-compatible cameras and the lack of a V90 rating for 8K.
Everyday users praise the card for flawless 4K video capture, robust build quality and excellent value, though some note occasional lower write speeds on older devices.
Professional reviewers consider Silicon Power's 512 GB U3 cards reliable mid-tier options that deliver solid 4K video performance and useful A2 app acceleration, highlighting durability, endurance features and a long warranty as key strengths, while noting they don't match the top speeds of SanDisk or Samsung.
Everyday users praise the cards for consistent 4K recording, good durability and the long warranty, especially noting the High Endurance model's reliability in dashcams, but also mention occasional speed variability, confusing model labels and incompatibility with the upcoming Switch 2.
