microSD Slot vs. USB Port Benchmark #rpi #microsd #usb


David Haworth WA9ONY
 

Test results of Lexar microSD cards plugged into the bottom of a Raspberry Pi and the Lexar plugged into the USB port.

The same Lexar 633x microSDHC UHS-1 32GB is plugged into the Raspberry Pi microSD slot on the bottom and into an UGREEN SD Card Reader USB 3.0 Dual Slot Flash Memory Card Reader plugged into the Raspberry Pi USB 3.0 port.

Test Results: The Raspberry Pi microSD slot is faster which agrees with test results posted on the Internet.

Configuration:
Raspberry Pi Model 4 B 4 GB

Benchmark:
Run the benchmark on your Raspberry Pi with the CLI command:
sudo curl https://raw.githubusercontent.com/TheRemote/PiBenchmarks/master/Storage.sh | sudo bash

Benchmark website:
https://storage.jamesachambers.com/
The website's very high benchmark scores (9,000 to 10,000) are sometimes from CPUs that are overclock to 2GHz and 2.1GHz.
The normal RPi 4 CPU clock speed is 1.5 GHz.
Look for David WA9ONY benchmarks in the User Table column.

Raspberry Pi Storage Benchmarks 2019 + Benchmarking Script
https://jamesachambers.com/raspberry-pi-storage-benchmarks-2019-benchmarking-script/

microSD Card Test Results:

Lexar 633x microSDHC UHS-1 32GB
Raspberry Pi microSD slot on the bottom of the board.
Test run 1: 1448
Test run 2: 1400
Note, the Lexar shows up as a Sony image in the benchmark table.
https://www.amazon.com/gp/product/B012PLSCQ0/ref=ppx_yo_dt_b_asin_image_o08_s00?ie=UTF8&psc=1
$6.99

Lexar 633x microSDHC UHS-1 32GB
Raspberry Pi USB 3.0 port with Ugreen microSD to USB 3.0 adapter
Test run 1: 1205
Test run 2: 1190
Note, the Lexar shows up as a Sony image in the benchmark table.
https://www.amazon.com/gp/product/B012PLSCQ0/ref=ppx_yo_dt_b_asin_image_o08_s00?ie=UTF8&psc=1
$6.99
https://www.amazon.com/gp/product/B01EFPX9XA/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1
$10.99


Please post your Raspberry Pi memory benchmark results with your configuration.

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73 David WA9ONY