Obviously transistors have gotten way smaller, but it's not entirely fair to compare transistors in a sound chip to something in a microprocessor. Anything tha

Obviously transistors have gotten way smaller, but it's not entirely fair to compare transistors in a sound chip to something in a microprocessor. Anything that's driving a speaker is going to have pretty large transistors. Additionally the power stage of chips generally takes up some room. It'd be a lot more comparable to compare similar basic sound output chips... I bet they don't have more than a few thousand transistors even today.