Tom's Hardware reports that the CPU was compiled directly into the weights of a Qwen 3.5 4B model. The arrangement treats the weights as RAM and executes both DOOM and C code.

The 32-bit figure is all the document confirms. It does not establish a clock speed, a cache, a memory map, or usable instruction throughput. It only says the weights can be read and written as RAM for a compiled CPU.

The constraint sits on the model rather than the silicon. Weights must carry both language behavior and executable state, so every byte of memory is also a parameter. For a buyer, that changes nothing about a fab order; for a model builder, it turns the weights into a volatile substrate that must be preserved while the model still answers.

The page does not state parameter count, weight size, CPU performance, or whether the DOOM run used a full game or a reduced build.

The 32-bit figure is the only hard spec the source gives. The piece flags what is missing rather than padding the story.