Benchmark Sandisk Extreme

10/10/2021 One-minute read

Benchmarking the Sandisk Extreme 64 GB MicroSDX with hdparm on Raspberry Pi OS, 32bit usint hdparm

cli command:

sudo hdparm -Tt /dev/mmcblk0


Timing cached reads:   1506 MB in  2.00 seconds = 752.72 MB/sec
Timing buffered disk reads: 132 MB in  3.03 seconds =  43.53 MB/sec

For reference Sandisk public specs:

SanDisk Extreme microSDXC UHS-I
Capacities: 1TB, 512GB, 400GB, 256GB,128GB, 64GB, 32GB
Speed: Up to 160MB/s Sequential Read, 90MB/s Sequential Write
Speed rating: UHS-I
Product Numbers:
64GB - SDSQXA2-064G

For comparision output of hdparm for M.2 SSD Kingston NV1 500 GB on USB 3.0 RSHTECH M2.NVMe

 Timing cached reads:   14990 MB in  1.99 seconds = 7523.96 MB/sec
 Timing buffered disk reads: 1244 MB in  3.00 seconds = 414.07 MB/sec

No shocker M2.SSD overperformed MicroSD, even when attached to USB3.0 Gen1.

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