Which workloads?

Literally every workload not named above. It’s the default for a non-integer number.

* Web rendering and almost all web apps (see the JS number type)

* Most things in a game not done on the GPU

* Audio processing

* Most GUI processing/rendering

* Every miscellaneous/scalar calculation these days

Believe it or not, on a CPU this adds up to a lot more than the work you get doing AI processing.

JS converts most number into 31-bit ints internally (which is why it’s so fast). GUI work often prefers int or f32.

You have a point about games, but the CPU is seldom the limiting factor.

Very few people are handling raw audio. For the rest, codec hardware beats everything else by a massive margin.

Being good at floats matters, but even float-heavy code generally has way more integers than floats making integer performance king.

Quite a lot of web rendering is done with non-integer JS Number types, aka FP64. You are right that there’s a 31-bit integer optimization, but once you have a non-integer in the mix, it’s FP64. Many GUIs some time ago would use FP32, but in 2026 there’s a lot more FP64 out there than you give credit for.

Right but I've never seen these fp64 computations show up hot in a profile. I'm not saying they're not used but most of the work in a general computer usage in terms of profiles is in scalar integer code.