---
title: "RAM & CPU Caches"
summary: "RAM & CPU Caches: a section of HPC, with nested pages under it."
date: 2026-09-11
author: hpcnotes
kind: note
parent: hpc
order: 9
tags: hpc
draft: false
---

Bandwidth, latency, lines, associativity, prefetch. Most 'CPU bound' codes are waiting on RAM.