I have 2 SD cards (samsung evo plus 256gb & 512gb) running on my S20 and Note 10+.
The advertised speed of the cards is 100 read / 90 write.
I put both sd cards on my SD card reader and connected to computer. Formatted and tested with CrystalDiskMark with default settings. Both cards had almost identical results for sequential read and write. 90-95 read, 80-85 write.
I did a couple of benchmarks and the speeds are considerably less on my phones. About 70 read and 50 write.
Is this a limitation of the phone?
I used A1 SD BENCH and did Accurate testing (with reboot) & other apps.
Hi aldel99, We are sorry for the inconvenience caused. As per the website information, the Samsung EVO Plus 256GB microSDXC Micro SD Memory Card has superfast read & write speeds up to 100 MB/s & 90 MB/s respectively. So it is normal as it has the maximum read & writes speeds up to 100 MB/s & 90 MB/s. *The foregoing read & write speeds are based on internal tests conducted under controlled conditions. Actual speeds may vary depending upon card capacity. * Test Device : Samsung Galaxy S9+For 32GB, FAT32 file system is used and for 128GB / 512GB, exFAT file system is used.¹ 3840x2160 4K UHD(30 fps), Average file size recording for 30 mins : 10.1GB² 1920x1080 Full HD(30 fps), Average file size recording for 30 mins : 3.09GB³ 4032x3024 12MP, Average file size : 3.25MB4 Average MP3 file size : 6.2MB Here is the link for Samsung EVO Plus 256GB microSDXC Micro SD Memory Card: https://www.samsung.com/ca/memory-storage/memory-card/evo-plus-256gb-microsd-card-with-sd-adapter-20...
