CPU
The general-purpose processor that executes almost every instruction your system runs.
What is it?
The CPU (Central Processing Unit) is the chip that carries out the instructions of your operating system and applications. Everything from opening a file to running a game's logic passes through it.
What does it do?
It fetches instructions, decodes them, and executes them — billions of times per second, across multiple independent cores working in parallel.
What's actually inside.
Cores
Each core is an independent execution unit. This chip has eight — meaning eight instruction streams can genuinely run at once.
Threads
Most cores here run two threads each, filling idle execution slots when one thread is waiting on data.
Cache
A ring of fast on-die memory keeps frequently used data close to the cores, avoiding slow round-trips to system RAM.
Clock speed
Each core executes billions of cycles per second. Higher clocks mean faster single-threaded work.
Workload
Not every task uses every core. A lightly threaded game might only keep five of eight cores meaningfully busy.
Performance
Real-world performance is the combination of all of this — core count, clock speed, cache, and how well a workload actually uses them.
Cores / Threads
Determines how much work can genuinely run in parallel — matters for multitasking, rendering, and compiling.
Boost Clock
The practical ceiling for single-threaded speed, which most games and everyday apps lean on heavily.
Cache
Larger cache reduces how often the CPU waits on slower RAM — a meaningful factor in gaming frame rates.
TDP
A rough guide to how much heat the cooler needs to dissipate and how much power the CPU draws under load.
The CPU sets a ceiling on how fast everything else in the system can be fed work. A powerful GPU paired with a weak CPU will often sit idle waiting for instructions — this is called a CPU bottleneck.
For gaming, single-core speed and cache size tend to matter most, especially at lower resolutions. For rendering, compiling, and encoding, core/thread count tends to matter more because those workloads split cleanly across many cores.
- Motherboard — Must match the board's CPU socket.
- CPU Cooler — Needs a cooler rated for its TDP and socket.
- RAM — Memory speed and latency affect how well a fast CPU is fed data.
- GPU — A weak CPU can bottleneck a powerful GPU, especially at lower resolutions.
Common mistakes
- Buying a high-end GPU with a low-end CPU, creating a bottleneck.
- Ignoring cooler requirements for high-TDP performance-tier CPUs.
- Assuming more cores always means faster gaming — many games favor fewer, faster cores.
How to choose
- Start from your primary workload: gaming leans on single-core speed, creative/technical work leans on core count.
- Match the CPU tier to your GPU tier so neither bottlenecks the other.
- Confirm the cooler you're pairing it with is rated for its TDP.
See CPU products and pricing, or get a build recommended.