CPU Guide

Last updated: 16 February 2025

What is this? This page has essential info and links to everything you need to know about choosing a CPU. It’s sort of a TLDR. By following this page you’ll be able to understand what kind of processor fits your needs. If you want to go deeper, many of the links I reference on this blog (links to articles on this blog) will teach you even more about CPUs and performance tips.

What is a CPU?

A CPU (Central Processing Unit) is the brain of your computer. It executes instructions, processes data, and determines how fast and efficiently your system can run applications, games, or code. Whether you’re browsing the web, gaming, watching a video or compiling code, your CPU matters.

Key features & specs

  • Cores vs Threads: More cores help with multitasking. Threads are like virtual cores. Read more about cores vs threads here.
  • Clock Speed: Measured in GHz. It tells you how many cycles per second the CPU can handle. Higher isn’t always better. Read more about base vs boost clocks.
  • IPC (Instructions per Clock): Determines how much work is done per cycle. Newer CPUs usually have better IPC. More about IPC here.
  • Cache (L1, L2, L3): Small bits of fast memory inside the CPU. L1 is fastest but smallest. Learn about CPU cache here.
  • TDP (Thermal Design Power): How much heat the CPU generates. Impacts cooling needs and power draw. More here.
  • Integrated GPU: Some CPUs come with built-in graphics (iGPU). If your PC has a dedicated GPU, you might not need this. More here.
  • Socket Type & Chipset: Your motherboard must match the CPU socket. AMD uses AM4, AM5; Intel uses LGA1700 etc. Compatibility guide here.
  • Manufacturing Process (nm): Smaller is better (usually). 5nm CPUs are more efficient than older 14nm ones. More details here.
  • P-cores vs E-cores: Performance vs efficiency cores. Applies to Intel 12th gen and newer. Article coming soon.
  • Overclocking: Boosting performance beyond stock speeds. Requires good cooling. Explained here.
  • Hyperthreading/SMT: Intel and AMD’s way of squeezing more threads per core. Here’s what you need to know.
  • Thermal Throttling: Happens when cooling isn’t enough. The CPU slows down to avoid overheating. Avoid this like the plague. Here and here about it.
  • Benchmarks: Use Cinebench, Geekbench, PassMark… but real-world performance matters more.

Buying Guide: how to choose the best CPU

And by best, I mean the best for you.

Because choosing the right CPU depends on your workload. Gamers prioritize single-core performance and high clock speeds. Content creators need more cores and threads. Developers want a balance.

And here is a table that might be useful if you don’t feel like reading a full guide right now:

Primary UseKey SpecificationsNice to have
General Office Work
4–6 cores, 8+ threads
Base clock 3.5 GHz+
Integrated GPU
Low power consumption
Good efficiency
Gaming8 cores, high single-core perf
Boost clock 4.5+ GHz
No bottleneck
High L3 cache
Unlocked CPU
Fast RAM support
Video Editing / Rendering8–16 cores
High multi-thread perf
Large cache
High TDP headroom
Overclocking
PCIe 4.0/5.0
Unlocked CPU
Fast RAM support
Programming/Development6–12 cores
Fast compile times
Good IPC
Good Linux support
Virtualization extensions
Everyday and light gaming6 cores
iGPU optional
Good efficiency
Good value per $
Modern architecture

!! Please always check what your software or whatever you plan to do on that system recommends. Aim to exceed those recommendations a bit just to be sure future updates won’t make your 1 year old CPU be already useless.

What to focus on

This is for a guy like me. Moderate budget, solid all-rounder. Gaming, dev work, video editing, some browsing, some light multitasking.

  1. Never get a CPU that’s too old. 3–5 years max is OK. Past that, you miss out on efficiency and features.
  2. For gaming, prioritize high single-core performance (IPC + clock speed).
  3. For multitasking, rendering, dev work — get more cores and threads.
  4. iGPU is nice for troubleshooting even if you have a GPU (quick boot checks, etc).
  5. Avoid bottlenecks: match your CPU with your GPU and RAM.
  6. Don’t ignore cooling! A good CPU cooler helps avoid throttling and keeps performance stable.
  7. If using Linux or virtual machines, check for instruction support (VT-x, AMD-V).
  8. Stick to mainstream sockets: LGA1700 (Intel), AM5 (AMD). Easier upgrade paths.

CPU Models recomendations for 2025

Below are some good models I can recommend.

  • Budget everyday use (with iGPU):
    • AMD Ryzen 5 5600G
    • Intel Core i3-13100
  • Gaming sweet spot (best value):
    • Intel Core i5-13400F
    • AMD Ryzen 5 7600
  • High-end gaming / editing:
    • AMD Ryzen 7 7800X3D
    • Intel Core i7-14700K
  • Pro content creation & workstation:
    • AMD Ryzen 9 7950X
    • Intel Core i9-14900K
  • Best CPU with integrated graphics:
    • AMD Ryzen 7 8700G
    • Intel Core i5-14600 (non-F)

Final thoughts

Your CPU is what sets the pace for everything your computer does — from launching apps to compiling huge projects. Buying a good one today will future-proof your system for years.

Try to pick a modern CPU with a recent architecture (Zen 4, Raptor Lake, etc.) and make sure it fits your motherboard. Good performance + good efficiency + good support = solid choice.

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