Lexar recently released the Professional 2000x SDXC UHS-II Card. So, how does the new model compare against the similar Professional 1667x SDXC UHS-II Card?
You can find out in this comparison guide.
Quick Summary
When compared to the Lexar Professional 1667x UHS-II Card, the Lexar Professional 2000x UHS-II Card has a faster video speed class rating in addition to a faster maximum read speed and a much faster maximum write speed.
So, the Lexar Professional 2000x is an all-around improvement over the Lexar Professional 1667x.
If you are looking for the best speeds, especially when it comes to capturing 4K and 8K videos, then we recommend getting the 2000x over the 1667x.
1667x SDXC UHS-II Card vs. 2000x SDXC UHS-II Card Comparison Chart
You can check out Seeking Tech’s comparison table between the 1667x and 2000x SDXC UHS-II Cards below.
| Lexar Professional 1667x SDXC UHS-II Card | Lexar Professional 2000x SDXC UHS-II Card | |
|---|---|---|
| Capacity Options | 64GB 128GB 256GB | 32 GB 64GB 128GB |
| Model Numbers | 64GB: LSD64GCBNA1667, LSD64GCBNA16672 or LSD256CB1667 128GB: LSD128CBNA1667, LSD128CBNA16672 or LSD128CB1667 256GB: LSD256CBNA1667 or LSD256CB1667 | 32GB: LSD2000032G-BNNNU or LSD32GCRBCN2000 64GB: LSD2000064G-BNNNU or LSD64GCRBCN2000 128GB: LSD2000128G-BNNNU or LSD128CRBCN2000 |
| Dimension | 32.0 mm x 24.0 mm x 2.1 mm (or 1.25” x 0.95” x 0.08”) | 32.0 mm x 24.0 mm x 2.1 mm (or 1.25” x 0.95” x 0.08”) |
| Ultra High-Speed Bus Interface | UHS-II | UHS-II |
| Backwards Compatible Ultra High-Speed Bus Interface | UHS-I | UHS-I |
| File System | 64GB: SDXC 128GB: SDXC 256GB: SDXC | 32GB: SDHC 64GB: SDXC 128GB: SDXC |
| Speed Class | Class 10 | Class 10 |
| UHS Speed Class | U3 | U3 |
| Video Speed Class | V60 | V90 |
| Maximum Read Speed | Up to 250 MB per second | Up to 300 MB per second |
| Maximum Write Speed | Up to 120 MB per second | Up to 260 MB per second |
| Operating Temperature | 0° C to 70° C (or 32°F to 158°F) | 0° C to 70° C (or 32°F to 158°F) |
| Storage Temperature | -25° C to 85° C (or -13°F to 185°F) | -25° C to 85° C (or -13°F to 185°F) |
| Warranty | Limited lifetime warranty | Limited lifetime warranty |
| Pricing | Check price on Amazon.(#CommissionsEarned) | Check price on Amazon.(#CommissionsEarned) |
Capacity Options and Model Numbers
The Lexar Professional 1667x SDXC UHS-II Card comes in three capacity options as you have a choice between 64 GB, 128 GB and 256 GB. The Lexar Professional 2000x SDHC/SDXC UHS-II Cards come in three capacity options: 32 GB, 64 GB and 128 GB.
You can take a look at the model numbers for each of the capacities below:
- 64GB Lexar Professional 1667x: LSD64GCBNA1667, LSD64GCBNA16672 or LSD256CB1667
- 128GB Lexar Professional 1667x: LSD128CBNA1667, LSD128CBNA16672 or LSD128CB1667
- 256GB Lexar Professional 1667x: LSD256CBNA1667 or LSD256CB1667
- 32GB Lexar Professional 2000x: LSD2000032G-BNNNU or LSD32GCRBCN2000
- 64GB Lexar Professional 2000x: LSD2000064G-BNNNU or LSD64GCRBCN2000
- 128GB Lexar Professional 2000x: LSD2000128G-BNNNU or LSD128CRBCN2000
Dimension
The 1667x and 2000x are identical when it comes to physical size. You can take a look at the measurements below:
- 32.0 mm x 24.0 mm x 2.1 mm (or 1.25” x 0.95” x 0.08”)
Ultra High-Speed Bus Interface
The Lexar Professional 1667x and Lexar Professional 2000x both use the UHS-II bus interface.
Backwards Compatible Ultra High-Speed Bus Interface
The two memory cards in this versus guide are also backwards compatible with the UHS-I bus interface although your speed will be limited when compared to the UHS-II.
File System
Apart from the 32 GB Lexar Professional 2000x card, which uses the SDHC file system, all the other capacities use the SDXC file system.
Speed Class
The Lexar Professional 1667x and Lexar Professional 2000x have a speed class rating of Class 10, which means that both cards have a minimum sequential write speed of at least 10 MB per second.
UHS Speed Class
For the UHS speed class, the Professional 1667x and Professional 2000x also received the same U3 rating. This means that the two storage devices have a minimum sequential writing speed of at least 30 MB per second.
Video Speed Class
The Professional 1667x has a video speed class rating of V60, which means that it has a minimum sequential writing speed of at least 60 MB per second. This is good enough to capture 4K videos in the best quality. The same speed is also good enough to capture 8K video of good quality.
The Professional 2000x has a video speed class rating of V90 as it has a minimum sequential writing speed of at least 90 MB per second. This is good enough to capture 4K and 8K videos at the best quality.
Maximum Read Speed
When it comes to the maximum read speed, the 2000x memory card is 50 MB per second faster (or 20% faster) than the 1667x memory card.
You can check out the max reading speed specifications below:
- Lexar Professional 1667x: Up to 250 MB per second
- Lexar Professional 2000x: Up to 300 MB per second
Maximum Write Speed
The Professional 2000x version is also much faster at maximum write speed. The 2000x has a 140 MB per second advantage (or 116.67% faster) over the 1667x.
You can take a look at the max writing speed specs below:
- Lexar Professional 1667x: Up to 120 MB per second
- Lexar Professional 2000x: Up to 260 MB per second
Operating Temperature
The two memory cards in this comparison have the same recommended operating temperature with a range from 0° C to 70° C (or 32°F to 158°F).
Storage Temperature
The cards also have identical storage temperatures with a range from -25° C to 85° C (or -13°F to 185°F).
Warranty
The Lexar Professional 1667x SDXC UHS-II Card and Lexar Professional 2000x SDHC/SDXC UHS-II Cards each comes with a limited lifetime warranty.
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