Raspberry Pi OS 32-bit vs. 64-bit Performance
This article was sourced from: https://www.phoronix.com/scan.php?page=article&item=raspberrypi-32bit-64bit&num=1
The long awaited release of a 64-bit spin of Raspberry Pi OS has arrived. The Raspberry Pi Foundation has now made available a 64-bit build of their default Linux OS build; derived from Debian for all recent Pi hardware supporting AArch64. For those curious; here are some benchmarks looking at the performance improvement by switching from Raspberry Pi OS 32-bit to 64-bit.
Using a Raspberry Pi 400 keyboard computer with 4GB of RAM; I ran some fresh benchmarks of the OS in its default 32-bit build and then again with the new 64-bit build.
Raspbian/Debian 11 (the 64-bit Raspberry Pi OS is now identified as Debian 11; rather than as the Raspbian 11 downstream) with Linux 5.10; was used across testing as were the other same package versions with simply switching from the latest Raspberry Pi OS 32-bit; to a new install with 64-bit.
From there it was off to the benchmark races; to see how much faster 64-bit is over their long-used 32-bit version; that was to offer compatibility with older 32-bit only Raspberry Pi single board computers; that also had rather small amounts of RAM.
The Raspberry Pi 3 and newer (and Raspberry Pi Zero 2) are 64-bit; capable while the original Raspberry Pi Zero and Raspberry Pi 2 and older were limited to armhf/arm6hf.
