Best of 2025

The blog posts Hacker News loved most in 2025. 133 posts.

Hardware & Electronics
33

How to Think About GPUs

We love TPUs at Google, but GPUs are great too. This chapter takes a deep dive into the world of GPUs – how each chip works, how they're networked together, and what that means for LLMs, especially compared to TPUs. While there are a multitude of GPU architectures from NVIDIA, AMD, Intel, and others, here we will…

47

Starlink User Terminal Teardown

I think the human race has no future if it doesn’t go to space. —— Stephen Hawking Starlink is a low Earth orbit (LEO) satellite internet service provided by SpaceX. Users connect to near-Earth orbit satellites through a user terminal, which then connects to the internet via ground gateways. Basic Starlink network…