Russian chipmakers have demonstrated homegrown processors based on both RISC-V and Arm architectures — and they chose an unusual way to prove the silicon works: running a Nintendo Entertainment System clone on a Baikal microcontroller.

The demo, reported by Tom's Hardware, doubles as a public stress test. Retro gaming may look like a party trick. But emulating a 1980s console in real time forces a processor to handle tight timing loops, memory management and graphics output all at once, which makes it a credible way to show that domestically designed silicon actually executes code the way its designers intended.

The Baikal microcontroller at the center of the NES-clone demo comes from Baikal Electronics, one of Russia's best-known domestic processor houses. The company has built its portfolio around Arm-compatible designs, and the demonstration placed that architecture alongside RISC-V chips from other Russian developers — a pairing that reflects the two instruction sets now competing for space in the country's import-substitution plans.

Why show silicon through old games?

Because it works, and because audiences can verify it instantly. A chip can pass a spec sheet and still stumble in the field. Running a recognizable game on screen gives engineers, buyers and officials a live, visible result — no benchmarks required.

It also signals intent. Russia has spent years pushing to replace Western semiconductors with domestic alternatives, a drive that accelerated sharply after sanctions cut off access to U.S. and European chip supply and design tools. Demonstrating working silicon, even in a playful wrapper, tells procurement officers and systems integrators that these parts exist outside of slideware.

What does the demo tell us about the architectures?

The split between RISC-V and Arm is the quiet headline. RISC-V, the open instruction set architecture free of Western licensing chokepoints, has obvious appeal for a sanctioned Russia: nobody can revoke an open standard. Arm, by contrast, carries licensing risk — but Russian designers already hold Arm-compatible IP and know how to ship it, as the Baikal-powered NES clone shows.

Showing both architectures side by side suggests Russian developers are hedging rather than betting the program on a single instruction set. For toolchains, software ports and developer training, that dual track carries real cost. It also buys optionality if one path hits a legal or supply wall.

Where does this fit in Russia's chip push?

A microcontroller running an emulator is a long way from a competitive modern CPU or GPU, and nobody in the demo claimed otherwise. What it establishes is more basic: domestic designs are being fabricated, packaged, and booted into working systems.

That distinction matters. Import substitution programs often stall at the design-file stage, where layouts exist but physical silicon never arrives. Public demonstrations of running hardware — however modest the workload — mark the difference between a roadmap and a shipment.

What comes next?

The retro-gaming showcase won't move any markets on its own. But it signals that Russian firms are moving steadily along the path from open-standard and licensed designs toward deployable domestic silicon, and future demos on more demanding workloads will show how far that path actually runs.