The surprising bit is less about what they're working on and more about the collaboration itself, including the mutual and coordinated co-marketing/PR. Apple and Nvidia haven't had a business relationship in over a decade, ever since Apple stopped using Nvidia GPUs in Macs.
This sort of re-engagement and subsequent promotion isn't something that "just happens", in my experience. It's reasonably possible that this could portend additional future outcomes, such as official support for Nvidia-based eGPUs, Apple's licensing of/support for CUDA, Mac Pros with Nvidia GPUs, etc.
So this isn't just about Faster LLM performance. This could possibly opens up a whole new world for Mac ecosystem with CUDA.
Apple has shipped many successful fanless systems - most recently the MacBook Air.
Apple's metal laptop cases (starting with the titanium PowerBook G4 in 2001) look nice and also help with heat dissipation - though the case itself can heat up. Thankfully shutdowns or burns due to overheating were (and are) rare.
Recently ThinkPads (for example) seem to have more thermal issues, but YMMV.
Most people would say H100 is easily more exciting than all released Intel GPUs combined.
https://www.tomshardware.com/pc-components/gpus/discrete-gpu...
Looks like their latest GPU is selling out. Hope they actually move the market a little bit and iterate on this.