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Lexar Professional 633x vs Lexar Professional 667x

Product Comparison: Lexar Professional 633x vs Lexar Professional 667x

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Lexar Professional 633x 128 GB Class 10 UHS-I Flash Memory Card

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Lexar Professional 667x 128GB SDXC UHS-I/U3 Card

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General Specifications

Brand

Lexar

Model

Professional 633x

Professional 667x

Origin

Korea

About the Product

Lexar Professional 633x SDHC/SDXC UHS-I cards let you quickly capture and transfer high-quality photos and 1080p full-HD, 3D, and 4K video, with a read transfer speed up to 633x (95MB/s). The cards leverage UHS-I technology for high-speed, Class 10 performance.

Designed for your mid-range DSLR or 3D camera, Lexar Professional 667x SDXC UHS-I cards let you quickly capture, and transfer high-quality photos of stunning 1080p Full-HD, 3D, and 4k video, with read speeds of up to 667x.

Key Specs

Type

SDXC

Capacity

128 GB

Bus Type

UHS-I

Read Speed

95 MB/s

100 MB/s

Write Speed

45 MB/s

90 MB/s

What customers say about "Key Specs"

Lexar Professional 633x 128 GB Class 10 UHS-I Flash Memory Card

This card advertises all over its read speed (95MB/s), which is quite good.
Good read and write speed, I use it with my Nikon D810 and never suffered from any lag.
Excellent product with great transfer speeds.
The write speed, is very, very slow (20MB/s)!
The read and write speed are slower than I thought with this price.

Lexar Professional 667x 128GB SDXC UHS-I/U3 Card

This is an excellent card for the money. It is around 92MBps read and around 80 MBps write speeds on sequential transfers with my USB3 card reader.
Transfer speed is impressive, I have no complaints at all.
Storage capacity more than ample - for most recording I use 1080p, and after 45 minutes of video, it still has plenty of capacity left.
It basically maxes out the UHS-I bus and will be difficult to get any faster speeds.
The transfer speed to your computer is horrendous.

Size & Weight

Height

1.25 in.

Width

0.95 in.

Depth

0.08 in.

Weight

0.3 oz.

0.16 oz.

Features

Speed Class

UHS Speed Class

Video Speed Class

V30

Built-in Write-Protect Switch

Yes

Extras

High-speed file transfer, Temperature Extremes, Capture high quality images, Fast Video Capture

Capture high quality images, High-speed file transfer, High-capacity options

What customers say about "Features"

Lexar Professional 633x 128 GB Class 10 UHS-I Flash Memory Card

Very good transfer speeds and high quality pictures.
This is a great SD card and it's extremely fast.
Lexar works great and it solved the problem with a too small SSD disc. The transfer of files is fast and I'm happy.
Video features available to take high-quality, stunning images Full-HD 1080p, 3D and 4K video.
Stable, reliable and fast enough. Has great features.

Lexar Professional 667x 128GB SDXC UHS-I/U3 Card

This SD card is a great value for money. Amazing speed class.
The ability to take high resolution movies without any hiccups.
It worked flawlessly in our point and shoot camera, our DSLR and our video camera.
This chip works just fine in the video camera where it currently resides.
The card has quick speed and the images are crisp and clear.

Warranty / Certifications

Manufacturer warranty

1 year(s)

Certifications

CE, FCC

Other Information

Manufacturer

Link