Recently I finally got my hands on a LoongArch processor, the ISA developed by China's Loongson Technology as an evolution from their earlier use of the MIPS64 ISA and inspired by RISC-V and other modern ISAs. The Loongson-3B6000 features 12 cores / 24 threads with dual channel DDR4 ECC memory support. Here is a look at how that latest-generation LoongArch desktop processor compares to the current generation AMD Zen 5 and Intel Arrow Lake desktop processors under Linux. Plus also tossing in the Raspberry Pi 5 (Raspberry Pi 500+) for an ARM reference point.