Loongson core authorization: Russian self-developed CPU game test "The Witcher 3" can reach 38FPS

A video posted by blogger PRO Hi-Tech shows that at the ExpoElectronica 2026 exhibition in Moscow,Russia's self-developed Irtysh (Irtysh) processor publicly demonstrated the screen of running "The Witcher 3", with an AMD RX 9060 XT graphics card with a frame rate between 22 and 38FPS.

The Irtysh processor is based on China's LoongArch instruction set architecture. The model demonstrated this time is Irtysh C632, equipped with 32 cores and 64 threads. The series also includes the C616 and the flagship C664, which has 64 cores and 128 threads, both using LoongArch LA664 core from Loongson Zhongke.

The demo system runs a Linux environment and runs the x86 version of "The Witcher 3" through Steam, Proton compatibility layer and binary translation (presumably based on Box64).

In the test scene, the frame rate was 22-32FPS when the image quality was set to extremely high. After adjusting to the lowest image quality, it only increased to 25-38FPS. It is speculated that the resolution is 1080P.

There is only a 3-6FPS gap between high and low image quality, indicating that the bottleneck is not the RX 9060 XT graphics card itself. The core reason for the limited frame rate is that x86 games must undergo binary translation to run on the LoongArch processor, and the additional loss lowers the overall performance.