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


General Specifications
Brand
Lexar
Lexar
Model
Professional 633x
Professional 667x
Origin
Korea
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
SDXC
Capacity
128 GB
128 GB
Bus Type
UHS-I
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.
1.25 in.
Width
0.95 in.
0.95 in.
Depth
0.08 in.
0.08 in.
Weight
0.3 oz.
0.16 oz.
Features
Speed Class
10
10
UHS Speed Class
U3
U3
Video Speed Class
V30
V30
Built-in Write-Protect Switch
Yes
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)
1 year(s)
Certifications
CE, FCC
CE, FCC
Other Information
Manufacturer


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