Quick answer

Choose the Lexar 1800x Gold Series if you need faster write speeds for rapid-fire bursts or large file transfers. Pick the 1667x Silver Series if you want reliable V60 4K video performance at a lower price.

Speed differences that matter

Both cards are UHS-II V60 rated, meaning they guarantee a minimum sustained write speed of 60 MB/s for 4K video. The real difference is in peak transfer speeds. The 1800x Gold reaches up to 280 MB/s read and 210 MB/s write, while the 1667x Silver tops out at 250 MB/s read and 120 MB/s write.

That 90 MB/s write gap matters most when you offload large projects or shoot continuous bursts. For everyday stills and standard 4K clips, the 1667x is more than adequate.

Build and reliability

Both cards come from Lexar’s Professional series, so you get the same quality assurance and compatibility with UHS-II cameras. The Gold Series carries a premium finish, but the internal components are similar. Neither card is rated for extreme temperatures or waterproofing beyond standard SD card durability.

The main trade-off is price: the 1800x Gold costs roughly 17% more per gigabyte. If your workflow doesn’t demand the extra write speed, the 1667x Silver delivers the same V60 video guarantee for less.

Trade-offs at a glance

  • Read speed: 1800x Gold: 280 MB/s vs 1667x Silver: 250 MB/s. Both are fast enough for most workflows.
  • Write speed: 1800x Gold: 210 MB/s vs 1667x Silver: 120 MB/s. The Gold is significantly faster for large transfers and burst photography. If you frequently shoot long bursts or transfer large video files, the 1800x Gold saves noticeable time.
  • Price per GB: 1800x Gold costs about 17% more than the 1667x Silver at current pricing. The 1667x Silver offers better value if you don't need the extra write speed.

Product facts

  • Lexar 256GB Professional 1667x SDXC UHS-II Card Silver Series Class 10 U3 V60: 256GB Lexar Professional 1667x SDXC UHS-II Card Silver Series: up to 250 MB/s read, up to 120 MB/s write, V60 class. This card handles 4K video recording reliably and offers fast enough read speeds for quick previews, at a more accessible price point.

    Lexar 256GB Professional 1667x SDXC UHS-II Card Silver Series Class 10 U3 V60

    Lexar 256GB Professional 1667x SDXC UHS-II Card Silver Series Class 10 U3 V60

  • Lexar 256GB Professional 1800x SDXC UHS-II Card Gold Series Class 10 U3 V60: 256GB Lexar Professional 1800x SDXC UHS-II Card Gold Series: up to 280 MB/s read, up to 210 MB/s write, V60 class. The higher write speed reduces transfer times after shoots and supports faster burst clearing for demanding photographers.

    Lexar 256GB Professional 1800x SDXC UHS-II Card Gold Series Class 10 U3 V60

    Lexar 256GB Professional 1800x SDXC UHS-II Card Gold Series Class 10 U3 V60

Which card fits you?

Best for

  • Photographers who shoot rapid bursts or large RAW files and want faster card clearing
  • Videographers who frequently offload 4K footage and value shorter transfer times

Not for

  • Budget-conscious shooters who only need reliable 4K video recording and don't require peak write speeds