Best CPUs for Overclocking in 2026

The best CPUs for overclocking in 2026 are the unlocked chips with real headroom — a K-series Intel chip or a Ryzen chip with PBO — and the best one for you depends on whether you want a gaming boost or a productivity boost. Buy the right chip, and the overclock is free; buy the wrong one, and there is nothing to overclock at all.

What makes a CPU good for overclocking?

Three things matter: the chip must be unlocked, it must have headroom, and it must stay cool enough to use it. Intel only unlocks K-series chips, while AMD unlocks almost every Ryzen chip. Headroom is the gap between the stock speed and the speed the chip can actually reach — and modern chips have less of it than they used to, because manufacturers already push them close to the limit. Our overclocking basics guide explains the idea, and our is overclocking worth it guide explains why the gain is usually 5–10% and not more.

Best Intel CPUs for overclocking

The best Intel overclocking chip is the Core i9-14900K — it is unlocked, it has 24 cores, and it responds well to a modest overclock, although it runs very hot, so good cooling is essential. The best value is the Core i5-14600K, which is the sweet spot for most builders: unlocked, affordable, and easy to overclock on a mid-range Z-series board. The Core i7-14700K sits between the two and is the best choice for creators who want 20 cores and an overclock. Our how to overclock Intel CPUs guide covers all three in detail, and our 12900K guide shows a cheaper unlocked flagship that still overclocks well.

Best AMD CPUs for overclocking

On the AMD side, the best overclocking chip is the Ryzen 9 9950X — 16 cores, unlocked, and it gains the most from PBO and Curve Optimizer in multi-core work. The Ryzen 7 9700X is the best mid-range choice: its 65W stock limit holds it back, so PBO gives it a real boost, and it runs cool. The Ryzen 5 9600X is the best budget overclocking chip — cheap, unlocked, and easy to tune. Our how to overclock AMD Ryzen CPUs guide covers the PBO and Curve Optimizer method, and our does overclocking void your warranty guide explains why PBO is the safest AMD overclock.

The best budget overclocking CPU

If you are on a budget, the best overclocking CPU is a used or discounted unlocked chip, not a new locked one. A Core i7-13700K or a Ryzen 9 9900X bought on sale will overclock better than a new locked chip at the same price — and our how much to spend on a CPU guide shows how to set the budget. Do not forget the other parts, though: a Z-series board and a good cooler cost money too, and our CPU benchmarks explained guide shows how to check whether the overclock actually helped.

What else you need

A good overclocking CPU is only half the job. You need a motherboard that allows it — a Z-series board for Intel, or any decent B-series or X-series board for AMD — good cooling, and a power supply with headroom. Read our cooling guides before you buy, and look at our step-by-step overclocking guide for the method. A Core Ultra 9 285K is a good chip, but it has less headroom than the 14900K, so it is not the best overclocking choice — it is the best efficiency choice instead.

The bottom line

The best CPUs for overclocking in 2026 are the 14900K and the 14600K on the Intel side, and the 9950X and the 9700X on the AMD side — all unlocked, all with real headroom, and all easy to tune. Pick the one that fits your budget, add a good cooler, and keep the overclock modest. Browse our overclocking guides and our CPU reviews for the next steps.