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- Bryan Conner
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In the past week I have purchased two new SD cards for my EOS R. As always I have tested them ( I am a nerd and love testing and collecting data).
Card read speed was tested in a ProGrade dual SD card tester using HD Tune Pro. A 16GB test was run, with Partial test/accurate in the settings and at a 64 KiB block size (default). Recorded speed was the average over the test, and not the maximum.
Camera write performance was done by timing how long it took to shoot a burst of RAW+JPEG until the buffer was filled and then the buffer cleared. Then dividing the size of the files in the burst by the time it took to shoot the burst and clear the buffer.
Kingston 128GB Canvas React Plus:
Read speed 301.60 Mb/s
Camera write: 112.44 Mb/s
PNY EliteX-Pro90 64GB:
Read speed 302.20 Mb/s
Camera write: 109.66 Mb/s
Card read speed was tested in a ProGrade dual SD card tester using HD Tune Pro. A 16GB test was run, with Partial test/accurate in the settings and at a 64 KiB block size (default). Recorded speed was the average over the test, and not the maximum.
Camera write performance was done by timing how long it took to shoot a burst of RAW+JPEG until the buffer was filled and then the buffer cleared. Then dividing the size of the files in the burst by the time it took to shoot the burst and clear the buffer.
Kingston 128GB Canvas React Plus:
Read speed 301.60 Mb/s
Camera write: 112.44 Mb/s
PNY EliteX-Pro90 64GB:
Read speed 302.20 Mb/s
Camera write: 109.66 Mb/s
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