We test SD cards and CF cards in cameras to evaluate performance. Fast cards allow your camera to take more pictures in less time as well as transfer images to your computer faster. Buying a fast card does not guarantee high speed, your camera may be a limiting factor. We test a variety of memory cards in each camera to find the best cards. We also test several card readers with different memory cards to find which readers work best for each memory card.
Read more camera and memory card news.
Every camera is tested using a variety of memory cards. The majority of cameras use Secure Digital (SD) cards, while others still use CompactFlash (CF) or both. We test write speed (in MB/s) as well as continuous shooting (maximum frames in 30 seconds) and recommend cards that perform best as well as which ones offer the best value. Below are the most recent cameras tested.
Nikon D500 XQD and SD card speed test The D500 is tested with 91 memory cards including XQD 2.0, UHS-I and UHS-II SD cards.
Nikon D5 Fastest XQD cards A comparison of six XQD cards in the Nikon D5
Fuji X-T10 Fastest SD cards Compare the write performance of 83 SD cards in the Fuji X-T10
Sony A7R II Fastest SD card comparison test Write speed of 76 SD cards compared in the A7R II and tested for 4K video compatibility
Canon 1D X Fastest CF Cards A shootout with 23 CompactFlash cards in the Canon EOS-1D X
Canon 5Ds SD and CF card comparison Comparing the performance of 75 SD and CF cards in the 5Ds to see which cards are fastest.
Pentax K-3 II Fastest SD cards 56 SD cards are tested in the new Pentax K-3 II. See how card speed affects continuous shooting performance.
Canon Rebel T6i/T6s SD card comparison and speed test 52 SD cards are tested in the Canon EOS Rebel T6i/T6s (750D/760D)
Nikon D7200 SD card comparison Nikon's DX-flagship gets a bigger buffer for better continuous shooting. A comparison of 44 SD cards in the D7200 shows how memory card write speed affects its performance.
Olympus E-M5 II SD card comparison The fastest UHS-II and UHS-I cards are tested in the new Olympus E-M5 Mark II.
More camera memory speed tests are coming soon.
Secure Digital and CompactFlash card reviews from several brands. SD card reviews include UHS-I and UHS-II cards, SDHC, SDXC and microSD. CompactFlash tests the latest high-speed UDMA 7 compatible cards. Extensive speed tests in card readers as well as in-camera tests are included with each review. Which is the fastest card?
Lexar Professional 633x microSD 200GB microSD Card Review. This 200GB microSD card offers giant capacity in a micro-sized memory card for action cameras such as the GoPro as well as smartphones and tablets.
May 18, 2016, 12:22 pm
PNY Pro Elite 64GB SD Card Review. PNY claims 95MB/s read and 90MB/s write speeds making this their fastest UHS-I SD card.
March 1, 2016, 11:35 am
Transcend Ultimate 633x microSD 64GB microSD Card Review. Transcend's fastest UHS-I microSDXC card is tested.
February 16, 2016, 3:32 pm
Kingston U3 (90/80) microSD 64GB microSD Card Review. This microSDXC card features 90MB/s read and 80MB/s write performance
February 16, 2016, 3:12 pm
Lexar Professional 1800x microSD UHS-II 32GB microSD Card Review. Lexar's fastest UHS-II microSD card boasts 270MB/s and 245MB/s write speeds
January 19, 2016, 3:06 pm
Transcend Ultimate UHS-II U3 32GB SD Card Review. Transcend's UHS-II SD card offers high read and write speed for the most demanding digital camera applications.
January 13, 2016, 12:34 pm
Panasonic Gold 95/90 64GB SD Card Review. Fast UHS-I performance from this Panasonic 64GB SDXC card
January 13, 2016, 12:01 pm
Delkin 1900x UHS-II 32GB SD Card Review. The Delkin 1900x provides high read performance, but falls short on write speed.
December 31, 2015, 3:19 pm
Lexar Professional 2000x UHS-II 64GB SD Card Review. This 2000x UHS-II card claims up to 300MB/s transfer speed. See the benchmark test results from seven UHS-II card readers.
October 11, 2015, 9:21 pm
Samsung PRO Plus 64GB SD Card Review. Samsung's new PRO Plus SD cards offer top performance with 95MB/s read and 90MB/s write speed ratings.
October 11, 2015, 12:09 pm
Transcend Ultimate UHS-II U3 64GB SD Card Review. The Transcend UHS-II card offers 285MB/s read and 190MB/s write speeds.
October 10, 2015, 6:12 pm
SanDisk Extreme 90MB/s U3 64GB SD Card Review. The 64GB Extreme 90MB/s features an upgraded read speed over the Extreme 60MB/s card it replaces.
September 27, 2015, 12:32 pm
SanDisk Extreme 90MB/s U3 128GB SD Card Review. The Extreme gets a new label touting a 90MB/s read speed. Compare it to the Extreme 80MB/s card it replaces.
September 26, 2015, 9:01 pm
SanDisk Extreme 80MB/s 128GB SD Card Review. The venerable Extreme, this time in 128GB capacity and wearing an 80MB/s label, gets benchmarked and tested in cameras.
September 20, 2015, 9:40 pm
Transcend 600x 64GB SD Card Review. This mid-level 64GB UHS-I SDXC card offers surprisingly good write speed.
September 20, 2015, 8:38 pm
SanDisk Extreme Pro 95MB/s 128GB SD Card Review. This 128GB Extreme Pro SDXC card is a top choice for UHS-I digital cameras.
September 20, 2015, 8:04 pm
Toshiba Exceria 1000x 32GB CF Card Review. A good value in a high performance UDMA7 CompactFlash card, in 32GB capacity.
September 18, 2015, 9:10 pm
Toshiba Exceria 1000x 64GB CF Card Review. The Exceria 1000x delivers most of the performance of the Exceria Pro 1066x at a lower price point.
September 18, 2015, 8:48 pm
Toshiba NFC 16GB SD Card Review. View thumbnails by simply tapping this NFC enabled card on your smartphone.
September 7, 2015, 4:02 pm
Transcend 1000x 128GB CF Card Review. Transcend's top card delivers both speed and capacity.
August 15, 2015, 8:28 pm
Toshiba Exceria Pro 1066x 64GB CF Card Review. The top-of-the-line Exceria Pro provides 64GB of high-speed CompactFlash storage.
August 15, 2015, 7:57 pm
Toshiba Exceria Pro 1066x 32GB CF Card Review. Toshiba's Exceria Pro CompactFlash card offers 160MB/s read and 150MB/s write speeds.
August 15, 2015, 7:36 pm
PixelFlash SuperSport 1000X-PRO 128GB CF Card Review. A high-performance CompactFlash card without the high price.
August 15, 2015, 7:00 pm
SanDisk Extreme Pro 160MB/s 64GB CF Card Review. A popular choice for photographers is the 64 GB Extreme Pro.
August 15, 2015, 4:29 pm
SanDisk Extreme Pro 160MB/s 256GB CF Card Review. The top level CompactFlash card from SanDisk is tested in the largest capacity offered: 256GB.
August 15, 2015, 4:03 pm
Komputerbay 1066x 128GB CF Card Review. Large capacity, high speed and low price make this 128GB CF card attractive.
August 15, 2015, 1:08 pm
SanDisk Extreme 80MB/s 256GB SD Card Review. Discover Extreme capacity and speed in the latest UHS-I SD card from SanDisk.
August 13, 2015, 1:34 pm
Toshiba Exceria UHS-I Class 3 64GB SD Card Review. Toshiba Exceria SD cards are now officially distributed in the USA. See how they compare.
August 8, 2015, 9:30 pm
Panasonic Gold Series 32GB SD Card Review. An in-depth look at Panasonic's Gold Series UHS-I U3 SD card.
August 8, 2015, 9:00 pm
Lexar Professional 1000x UHS-II 128GB SD Card Review. By offering big storage and UHS-II compatibility at a bargain price, Lexar is aiming high with their 128GB 1000X SDXC card. See how it performs in the speed test results.
June 6, 2015, 6:30 pm
Lexar Professional 633x 64GB SD Card Review. Lexar 633X SD cards replace the 600X, but how do they perform? Compare the speed test results and find out.
June 4, 2015, 9:00 am
Gobe Magic 104MB/s 64GB SD Card Review. This UHS-I SD card offers both high performance and value.
May 24, 2015, 3:00 pm
External memory card readers allow high speed transfers between memory cards and computers. Many readers support USB 3.0, which is capable of 500 MB/s transfer speed. These readers are also backwards compatible with USB 2.0 connections and devices. USB 2.0 limits transfer speed to about 35 MB/s maximum throughput. Devices with internal card readers (laptops, monitors, etc.) may also be limiting due to using a slower USB or PCI bus.
Lexar LRWM05U-7000 UHS-II microSD Reader Review. This microSD reader is included with Lexar Professional 1000x and 1800x microSD cards.
February 16, 2016, 12:16 pm
Delkin Travel Reader Review. The DDREADER-46 provides SD and microSD slots in a compact size.
December 22, 2015, 1:07 pm
Delkin Universal Memory Card Reader Review. The DDREADER-42 reader supports Secure Digital, microSD, CompactFlash, Memory Stick and xD cards.
December 22, 2015, 11:45 am
Delkin Dual Slot SD UHS-II and CF Card Reader Review. The Delkin DDREADER-44 is a compact, portable SD (UHS-I, UHS-II) and CompactFlash card reader.
December 22, 2015, 9:40 am
Transcend Multi-Card Reader RDF9 Review. The RDF9 is an update the popular RDF8 Multi-card reader and adds UHS-II SD card support.
October 10, 2015, 5:41 pm
Lexar Professional Dual Slot UHS-II Card Reader Review. The updated Lexar Dual Slot reader supports UHS-II SD cards as well as UDMA7 CompactFlash cards.
October 10, 2015, 11:30 am
Kingston MobileLite Wireless G2 Review. Wirelessly transfer images between SD cards, USB drives and mobile devices.
August 13, 2015, 11:45 am
Kingston FCR-HS4 Card Reader Review. This Kingston reader supports the latest UHS-II SD cards as well as UHS-I SD, microSD, CompactFlash, and Memory Stick.
August 10, 2015, 10:00 am
Lexar Professional Workflow SR2 UHS-II Review. This USB 3.0 card reader is compatible with UHS-II SD cards with blazing speed up to 300MB/s.
April 13, 2015, 12:53 pm
See additional card reader reviews.