Camera Memory Speed
Memory Card Comparison & Performance Tests for Digital Cameras
Canon 77D with SD card slot with SanDisk Extreme Pro card and door open

Canon 77D SD Card Comparison

Published: June 2, 2017

The Canon EOS 77D (9000D) is a mid-level DSLR offering a less expensive alternative to the 80D but positioned above the Rebel T7i. It offers full HD video up to 60fps and 6 fps high-speed continuous shooting at full resolution using its 24.2 megapixel APS-C sensor. It has a DIGIC 7 image processor and provides an ISO range from 100-51,200. The dual-pixel AF uses sensor-based focusing to enable auto focus during Live View and video recording, while 45 cross-type phase detect sensors provide autofocus when using the optical viewfinder and function up to maximum apertures including f/8.

The Canon 77D has a single SD card slot and supports UHS-I cards. To compare memory card performance, 125 SD cards were tested in the camera. All cards tested support UHS-I (UHS-II cards operate in UHS-I mode in the 77D). Test results are calculated and presented in average write speed for continuous of RAW images, as well as continuous shooting for the number of images taken in 30 seconds using RAW+JPEG, RAW, and JPEG image settings. Following the results, an analysis provides additional details observed during the tests. The fastest SD cards for the 77D are recommended including suggested cards for best value in the camera.

Canon 77D Card Speed Test Details

The camera is mounted on a tripod and controlled by a remote release timer. A manual lens is used with aperture set via the lens. Focus is set manually using Live View at maximum magnification. The image subject is a detailed scene illuminated by controlled lighting. The average write speed is calculated during extended shooting with a buffer full shot condition and is calculated by dividing the total size (in bytes) of images written to the card divided by the write time (in seconds). Results are provided in megabytes per seconds (MB/s) where 1 MB = 1,048,576 bytes. Write speeds is for RAW image mode which provides the highest average write speed (RAW+JPEG and JPEG modes have lower write speeds).

Write Speed

+ Show more prices
Memory CardSize
(GB)
Average Write Speed (MB/s)Price
Sony SF-G 300MB/s UHS-II 64GB6481.2$119.99
Lexar Professional 2000x UHS-II 32GB3281.0$54.95
Sony SF-G 300MB/s UHS-II 128GB12881.0$249.99
Sony SF-G 300MB/s UHS-II 32GB3280.8$65.99
Lexar Professional 1800x microSD UHS-II 64GB6480.7$124.95
Lexar Professional 2000x UHS-II 64GB6480.5$94.82
SanDisk Extreme Pro 300MB/s UHS-II 128GB12880.4$249.99
SanDisk Extreme Pro 95MB/s U3 32GB3280.4$29.25
SanDisk Extreme Pro 300MB/s UHS-II 64GB6480.3$119.95
SanDisk Extreme Pro 95MB/s microSDHC 32GB3280.1$32.49
SanDisk Extreme Pro 300MB/s UHS-II 32GB3280.1$59.95
SanDisk Extreme Pro 95MB/s microSDXC 64GB6479.9$53.99
SanDisk Extreme Pro 95MB/s 64GB6479.9$42.99
Lexar Professional 2000x UHS-II Rev E 64GB6479.9$94.82
SanDisk Extreme Pro UHS-II 275MB/s microSDXC 64GB6479.8$99.99
Sony M Series UHS-II 32GB3279.8$34.99
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDXC 64GB6479.7$44.99
SanDisk Extreme Pro 95MB/s 128GB12879.5$63.49
SanDisk Extreme Pro 95MB/s 32GB3279.5$29.25
Sony M Series UHS-II 64GB6479.3$59.95
Sony M Series UHS-II 128GB12879.2$99.99
Patriot EP Series microSDXC 64GB6479.0$31.99
PNY Pro Elite microSDXC 64GB6479.0$33.75
Kingston U3 90/80 MB/s 64GB6479.0$34.95
Transcend Ultimate UHS-II U3 64GB6478.9$131.29
Lexar Professional 2000x UHS-II Rev E 32GB3278.8$54.95
Transcend Ultimate UHS-II U3 32GB3278.8$54.99
Patriot EP PRO microSDXC 64GB6478.8$29.99
Hoodman Steel UHS-II 64GB6478.8$99.99
Kingston U3 90/80 MB/s 32GB3278.6$21.95
Toshiba Exceria Pro UHS-II 32GB3278.6$149.99
Panasonic Gold 95/90 64GB6478.5$94.99
PNY Pro Elite 64GB6478.4$92.80
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDHC 32GB3278.3$29.99
Lexar Professional 1000x UHS-II Rev C 64GB6478.2$46.98
Kingston U3 (90/80) microSD 64GB6478.1$39.95
SanDisk Extreme Pro 95MB/s 256GB25678.0$122.95
SanDisk Extreme Pro 95MB/s U3 V30 64GB6478.0$34.95
SanDisk Extreme Pro 95MB/s U3 V30 32GB3278.0$22.59
Kingston U3 (90/80) microSD 32GB3277.7$18.95
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDXC 128GB12877.6$89.99
SanDisk Extreme Pro 95MB/s U3 V30 128GB12877.4$64.95
SanDisk Extreme Pro 95MB/s U3 V30 256GB25676.7$124.99
Transcend Ultimate 633x microSD 64GB6476.4$62.99
Transcend 633x microSDHC 32GB3276.2$27.99
Samsung PRO Select microSDXC 64GB6476.1$150.00
Samsung PRO Plus microSDXC 64GB6476.1$52.99
Transcend R95 W85 U3 64GB6476.0$61.99
Samsung PRO Plus 32GB3275.9$24.99
Transcend 95/85 MB/s U3 32GB3275.8$29.99
Samsung PRO Plus 64GB6475.8$54.99
Samsung PRO Plus microSDXC 128GB12874.8$114.95
Samsung PRO Select microSDXC 128GB12874.8$520.00
Kingston Class 10 UHS-I 64GB6474.2$30.95
Sony 95MB/s U3 64GB6474.1$49.95
Delkin Black 32GB3274.1$9223372036854775808.00
Delkin Elite 633x 32GB3274.1$28.95
Samsung EVO Select microSDXC 256GB25673.9$174.99
Sony 95MB/s U3 32GB3273.6$24.99
Lexar Professional 1800x microSD UHS-II 32GB3273.3$52.25
Samsung PRO U3 32GB3272.0$14.95
Lexar Professional 2000x UHS-II Rev B 128GB12871.7$219.95
Samsung PRO U3 64GB6471.6$62.90
Samsung PRO microSDXC 64GB6471.2$69.99
Lexar Professional 1800x microSD UHS-II 128GB12870.8$166.95
Lexar Professional 1000x UHS-II Rev B 32GB3269.7$25.98
Lexar Professional 1000x UHS-II 128GB12869.0$84.95
Lexar Professional 1000x UHS-II 32GB3268.9$25.98
Lexar Professional 1000x UHS-II 64GB6467.9$46.98
PNY Elite-X microSDHC 32GB3267.4$15.74
Lexar Professional 1000x UHS-II Rev C 128GB12867.3$84.95
PNY Elite-X microSDXC 64GB6465.6$29.95
SanDisk Extreme 90MB/s U3 V30 microSDXC 64GB6464.9$29.95
SanDisk Extreme 90MB/s U3 V30 microSDHC 32GB3264.3$18.95
SanDisk Extreme Plus 90MB/s U3 V30 32GB3261.5$29.95
Transcend 600x 128GB12860.8$84.99
PNY Elite Performance U3 128GB12860.4$59.99
Transcend 95/60 MB/s U3 64GB6460.2$40.99
SanDisk Extreme Plus 90MB/s U3 V30 64GB6460.2$44.99
Transcend 95/60 MB/s U3 256GB25660.2$169.95
SanDisk Extreme 90MB/s U3 V30 128GB12859.7$59.95
Transcend 95/60 MB/s U3 128GB12859.7$87.99
Transcend 600x 64GB6459.4$39.97
PNY Elite Performance U1 64GB6459.4$44.99
Lexar Professional 633x U3 256GB25658.5$109.95
SanDisk Extreme 90MB/s U3 V30 microSDXC 128GB12858.0$66.94
SanDisk Extreme 90MB/s U3 V30 256GB25657.9$116.95
Lexar Professional 1000x UHS-II microSD 128GB12855.5$122.25
SanDisk Extreme 90MB/s U3 V30 64GB6449.9$28.89
PNY Elite Performance U3 256GB25649.2$99.95
SanDisk Extreme 90MB/s U3 V30 32GB3249.2$18.45
Delkin 1900x UHS-II 32GB3248.2$26.95
Lexar Professional 1000x UHS-II microSD 64GB6447.3$58.95
Lexar Professional 1000x microSD UHS-II 32GB3247.2$30.70
Kingston Class 10 256GB25646.2$106.95
Patriot EP Pro 90MB/s 32GB3244.7$54.99
Kingston Ultimate 32GB3244.6$15.90
SanDisk Extreme Pro 280MB/s UHS-II 32GB3241.7$60.95
SanDisk Ultra 80MB/s 32GB3239.4$13.95
Patriot EP Pro 128GB12839.1$49.99
Patriot EP Pro 90MB/s 64GB6438.7$29.99
Transcend 600x 32GB3236.7$20.99
PNY Elite Performance U1 32GB3235.7$28.45
SanDisk Ultra 80MB/s microSD 128GB12833.9$44.99
Panasonic MicroP2 UHS-II 32GB3233.6$199.95
Lexar Professional 1000x UHS-II 256GB25631.2$179.00
Lexar Professional 633x microSDXC 200GB20029.2$210.38
PNY Elite microSDXC 64GB6425.9$26.99
Lexar Professional 633x U1 128GB12825.5$54.93
Lexar Professional 633x U1 64GB6425.5$26.00
Samsung EVO microSDXC 64GB6425.3$24.99
Samsung EVO Select microSDXC 64GB6424.2$39.99
Samsung EVO microSD 32GB3223.8$12.99
SanDisk Ultra 80MB/s 128GB12821.7$44.26
Lexar Professional 633x microSDXC 128GB12820.0$6.00
Samsung EVO Plus 128GB microSDXC12819.8$54.00
Lexar Professional 633x U1 32GB3219.6$15.99
SanDisk Ultra 80MB/s 32GB Card 23219.6$13.95
Samsung EVO Select microSDXC 128GB12819.3$57.49
Lexar Professional 633x microSDXC 64GB6419.1$27.95
SanDisk Ultra 80MB/s microSD 64GB6418.9$22.32
PNY Elite microSDXC 128GB12818.5$49.99
SanDisk Ultra 80MB/s 64GB6415.3$24.99
SanDisk Ultra 90MB/s microSD 200GB20015.1$77.99
SanDisk Ultra 80MB/s microSD 32GB3214.1$12.99

Continuous Shooting

Continuous shooting results show the number of images captured in 30 seconds. The 77D is tested using three image modes: RAW+JPEG, RAW, and JPEG. The JPEG mode image setting is large, high quality. The total time the shutter is activated is 30 seconds and does not include the time to clear the buffer. Continuous shooting with the 77D is limited by the memory card write speed and once the buffer reaches capacity the frame rate slows down depending on the write speed of the card. Faster memory cards allow more shots because they clear the buffer faster so the camera can shoot more shots.

The continuous shooting results depend on camera settings and the image subject. The detailed subject for this test creates large files: 33.5 MB RAW (.CRW) and 12.6 MB JPEG. Using a less detailed image subject will yield higher numbers.

+ Show more prices
Memory CardSize
(GB)
Continuous Shooting – Images in 30 SecondsLowest
Price
RAW+JPEGRAWJPEG
Sony SF-G 300MB/s UHS-II 64GB646888173$119.99
Sony SF-G 300MB/s UHS-II 32GB326888173$65.99
Lexar Professional 2000x UHS-II 32GB326888173$54.95
Sony SF-G 300MB/s UHS-II 128GB1286788173$249.99
Lexar Professional 2000x UHS-II 64GB646788173$94.82
Lexar Professional 1800x microSD UHS-II 64GB646788173$124.95
SanDisk Extreme Pro 95MB/s microSDXC 64GB646787173$53.99
SanDisk Extreme Pro 95MB/s microSDHC 32GB326787173$32.49
Sony M Series UHS-II 32GB326787173$34.99
SanDisk Extreme Pro 300MB/s UHS-II 128GB1286787173$249.99
SanDisk Extreme Pro UHS-II 275MB/s microSDXC 64GB646787173$99.99
SanDisk Extreme Pro 95MB/s 64GB646787173$42.99
SanDisk Extreme Pro 300MB/s UHS-II 64GB646787173$119.95
Lexar Professional 2000x UHS-II Rev E 64GB646787173$94.82
SanDisk Extreme Pro 95MB/s U3 32GB326787173$29.25
SanDisk Extreme Pro 300MB/s UHS-II 32GB326787173$59.95
SanDisk Extreme Pro 95MB/s 32GB326787173$29.25
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDXC 64GB646787173$44.99
Transcend Ultimate UHS-II U3 64GB646686173$131.29
Toshiba Exceria Pro UHS-II 32GB326686173$149.99
Transcend Ultimate UHS-II U3 32GB326686173$54.99
Hoodman Steel UHS-II 64GB646686173$99.99
Panasonic Gold 95/90 64GB646686173$94.99
Sony M Series UHS-II 128GB1286686173$99.99
PNY Pro Elite microSDXC 64GB646686173$33.75
Sony M Series UHS-II 64GB646686173$59.95
Patriot EP PRO microSDXC 64GB646686173$29.99
SanDisk Extreme Pro 95MB/s 128GB1286686173$63.49
Patriot EP Series microSDXC 64GB646686173$31.99
Lexar Professional 2000x UHS-II Rev E 32GB326686173$54.95
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDHC 32GB326686173$29.99
Kingston U3 90/80 MB/s 64GB646686173$34.95
Kingston U3 90/80 MB/s 32GB326686173$21.95
Kingston U3 (90/80) microSD 32GB326685173$18.95
SanDisk Extreme Pro 95MB/s U3 V30 128GB1286685173$64.95
SanDisk Extreme Pro 95MB/s U3 V30 64GB646685173$34.95
SanDisk Extreme Pro 95MB/s U3 V30 32GB326685173$22.59
SanDisk Extreme Pro 95MB/s 256GB2566685173$122.95
SanDisk Extreme Plus 95/90 MB/s U3 V30 microSDXC 128GB1286685173$89.99
Lexar Professional 1000x UHS-II Rev C 64GB646585173$46.98
Kingston U3 (90/80) microSD 64GB646585173$39.95
Samsung PRO Select microSDXC 64GB646584173$150.00
SanDisk Extreme Pro 95MB/s U3 V30 256GB2566584173$124.99
PNY Pro Elite 64GB646584173$92.80
Transcend 633x microSDHC 32GB326584173$27.99
Samsung PRO Plus microSDXC 64GB646584173$52.99
Transcend 95/85 MB/s U3 32GB326584173$29.99
Samsung PRO Plus 64GB646583173$54.99
Samsung PRO Plus 32GB326583173$24.99
Transcend Ultimate 633x microSD 64GB646484173$62.99
Transcend R95 W85 U3 64GB646484173$61.99
Samsung PRO Select microSDXC 128GB1286483173$520.00
Samsung PRO Plus microSDXC 128GB1286483173$114.95
Delkin Elite 633x 32GB326482173$28.95
Delkin Black 32GB326482173$9223372036854775808.00
Sony 95MB/s U3 64GB646482173$49.95
Sony 95MB/s U3 32GB326482173$24.99
Samsung EVO Select microSDXC 256GB2566482173$174.99
Kingston Class 10 UHS-I 64GB646382173$30.95
Lexar Professional 1800x microSD UHS-II 32GB326281173$52.25
Samsung PRO U3 64GB646280173$62.90
Samsung PRO U3 32GB326280173$14.95
Samsung PRO microSDXC 64GB646280173$69.99
Lexar Professional 2000x UHS-II Rev B 128GB1286180173$219.95
Lexar Professional 1000x UHS-II 32GB326179173$25.98
Lexar Professional 1800x microSD UHS-II 128GB1286179173$166.95
Lexar Professional 1000x UHS-II 128GB1286177173$84.95
Lexar Professional 1000x UHS-II Rev B 32GB326078173$25.98
Lexar Professional 1000x UHS-II 64GB646077173$46.98
PNY Elite-X microSDHC 32GB325976173$15.74
Lexar Professional 1000x UHS-II Rev C 128GB1285976172$84.95
SanDisk Extreme 90MB/s U3 V30 microSDXC 64GB645874169$29.95
PNY Elite-X microSDXC 64GB645774165$29.95
SanDisk Extreme 90MB/s U3 V30 microSDHC 32GB325773168$18.95
SanDisk Extreme Plus 90MB/s U3 V30 32GB325571161$29.95
Transcend 600x 128GB1285570158$84.99
Transcend 95/60 MB/s U3 64GB645570158$40.99
SanDisk Extreme Plus 90MB/s U3 V30 64GB645570158$44.99
PNY Elite Performance U3 128GB1285570157$59.99
SanDisk Extreme 90MB/s U3 V30 128GB1285469157$59.95
Transcend 95/60 MB/s U3 128GB1285469156$87.99
PNY Elite Performance U1 64GB645469155$44.99
Transcend 95/60 MB/s U3 256GB2565469153$169.95
SanDisk Extreme 90MB/s U3 V30 microSDXC 128GB1285468156$66.94
SanDisk Extreme 90MB/s U3 V30 256GB2565368153$116.95
Lexar Professional 633x U3 256GB2565368152$109.95
Transcend 600x 64GB645366157$39.97
Lexar Professional 1000x UHS-II microSD 128GB1285266146$122.25
SanDisk Extreme 90MB/s U3 V30 64GB644861137$28.89
SanDisk Extreme 90MB/s U3 V30 32GB324860136$18.45
PNY Elite Performance U3 256GB2564860133$99.95
Delkin 1900x UHS-II 32GB324759131$26.95
Lexar Professional 1000x UHS-II microSD 64GB644759130$58.95
Lexar Professional 1000x microSD UHS-II 32GB324658130$30.70
Kingston Class 10 256GB2564655124$106.95
Kingston Ultimate 32GB324557126$15.90
Patriot EP Pro 90MB/s 32GB324557120$54.99
Lexar Professional 1000x UHS-II 256GB2564446157$179.00
SanDisk Extreme Pro 280MB/s UHS-II 32GB324354118$60.95
SanDisk Ultra 80MB/s 32GB324251115$13.95
Patriot EP Pro 128GB1284152112$49.99
Patriot EP Pro 90MB/s 64GB644151112$29.99
Transcend 600x 32GB324049107$20.99
PNY Elite Performance U1 32GB323849105$28.45
Panasonic MicroP2 UHS-II 32GB323847100$199.95
SanDisk Ultra 80MB/s microSD 128GB1283847100$44.99
Samsung EVO microSDXC 64GB64354068$24.99
Samsung EVO microSD 32GB32333873$12.99
PNY Elite microSDXC 64GB64323974$26.99
Lexar Professional 633x microSDXC 64GB64303465$27.95
Lexar Professional 633x U1 64GB64293975$26.00
Lexar Professional 633x U1 128GB128293971$54.93
Samsung EVO Select microSDXC 64GB64293880$39.99
SanDisk Ultra 80MB/s 128GB128293572$44.26
PNY Elite microSDXC 128GB128293484$49.99
Lexar Professional 633x U1 32GB32293471$15.99
SanDisk Ultra 80MB/s microSD 64GB64293469$22.32
SanDisk Ultra 80MB/s 32GB Card 232293468$13.95
Samsung EVO Select microSDXC 128GB128293267$57.49
Samsung EVO Plus 128GB microSDXC128283565$54.00
Lexar Professional 633x microSDXC 128GB128283463$6.00
SanDisk Ultra 90MB/s microSD 200GB200273160$77.99
SanDisk Ultra 80MB/s 64GB64263156$24.99
SanDisk Ultra 80MB/s microSD 32GB32263057$12.99
Lexar Professional 633x microSDXC 200GB200234389$210.38

Canon 77D Performance Analysis

The Canon 77D supports UHS-I cards including the fastest SDR104 mode which provides up to 104MB/s bus speed. The highest average write speed measured in the 77D was 81.2 MB/s. This is very close to the 81.5 MB/s maximum measured in the Canon 80D. Although several UHS-II cards were tested, they function in UHS-I mode in the 77D and offer practically the same write speed in the camera as fast UHS-I cards. UHS-II cards are faster only in devices that have the pins required to use the UHS-II interface, the Canon 77D does not. UHS-II cards will provide faster download speed when used in a UHS-II card reader. The cards can support up to 300MB/s read speed when used in UHS-II devices.

The 77D has a comparatively large buffer for a camera at its price point and the buffer size is similar to the 80D. When shooting RAW images, the camera captured up to 27 shots at full frame rate until the buffer was full when using the faster cards. Slower cards reduced this number and the slowest card could only capture 18 shots before the card speed limited shooting. The difference is due to the higher rate at which the faster cards can clear the buffer while shooting. That difference is even more apparent after after the buffer is full; the fastest card shot at 2.4 fps while the slowest only maintained 0.4 fps. The number of shots and frame rate depend on camera settings and the image subject. The detailed scene in this test produced 33.5 MB RAW files and 12.6 MB JPEG files.

When shooting RAW+JPEG, the slowest card reached 17 shots at full frame rate, whereas a fast card could reach up to 22. Frame rate with the buffer full varied from 0.3 fps with slow cards to 1.9 fps with the faster cards. When shooting JPEG only, the slowest card maintained full frame rate for the first 30 shots then dropped to 1.1 fps, while fast cards did not limit JPEG shooting and shot at full frame rate for the 30 second test.

Recommended SD Cards for the Canon 77D

Fastest:

Sony SF-G 300MB/s UHS-II 64GB SDXC card
Fast:
SanDisk Extreme Pro
SanDisk Extreme Pro (various cards)
Best Value:
Kingston Class 10 64GB SDXC Card
Kingston Class 10 64GB SDXC Card

The fastest cards in the Canon 77D were Sony SF-G 300MB/s UHS-II cards. Although these are UHS-II cards, they only function in UHS-I mode in the camera. There is little difference between the fastest UHS-II cards and fast UHS-I cards in the camera. SanDisk Extreme Pro 95MB/s UHS-I cards offer similar write speed in the camera and are a much better value. The Sony M Series UHS-II cards also offer high performance at a lower price point than other UHS-II cards, with the added benefit of fast UHS-II downloads. Kingston U3 90/80 MB/s UHS-I cards offer excellent performance in a UHS-I card.

From a value perspective, the Kingston Class 10 UHS-I 64GB is a good performer at a reasonable price point. The tables above can be sorted by clicking on the column headers and filtered by card capacity.

Canon 77D USB cable vs card reader speed comparison

Canon 77D USB 2.0 cable transfer using camera USB port

The Canon 77D has a USB 2.0 port that can be used to transfer images from the camera to a computer. USB 2.0 connections are limited to around 35MB/s at best, and the transfer speed of the 77D measured slightly lower. To test the transfer speed two of the faster SD cards were tested in the camera. Each card contained 5GB of RAW images and the transfer was made using a USB cable connected to a computer with a fast SSD drive to allow the fastest transfer rate. The first card was the Sony SF-G UHS-II 32GB which averaged 31.9 MB/s. The second card, the SanDisk Extreme Pro 95MB/s UHS-I U3 V30 32GB, averaged 31.5 MB/s. While this is reasonable performance for USB 2.0, it is far below the transfer rates provided by a separate USB 3.0 card reader. Transfer rates using UHS-I cards can reach 90MB/s, while UHS-II card can reach over 250MB/s when copying files. Speed tests of memory card readers are provided in the Card Reader Reviews.