Best PC Overclocking Software in 2026
Updated
In short: HCI MemTest is ranked #1 of 30 as of 4 October 2026, ahead of MemTest86 and MemTest86+. The best-ranked option with a free plan is MemTest86. The lowest first paid tier on this page is Argus Monitor at $1/mo.
Overclocking tools vary in which parts of a PC they let you adjust and the controls they provide. Compared on CPU tuning, memory tuning, motherboard controls, automatic overclocking, and hardware scope, the entries offer details to consider for the system you want to configure. Supported platforms, free plans, and paid-from prices are also listed. HCI MemTest, MemTest86+, and OCCT are among the names shown, alongside RyzenAdj and ASUS GPU Tweak III. Check the stated hardware coverage and platform support, then weigh the available tuning controls against the adjustments you are looking to make.
30 PC overclocking software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
14 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | HCI MemTestWindows · Linux | Two bars | — | 2 of 6 | Free | 6.5 | |
| 2 | MemTest86Windows · Mac · Linux · Self-hosted | Three bars | — | 3 of 6 | Free | 6.5 | |
| 3 | MemTest86+Windows · Mac · Linux | Three bars | — | 3 of 6 | Free | 6.5 | |
| 4 | OCCTWindows · Linux | Two bars | — | 2 of 6 | €4.50/mo | 6.5 | |
| 5 | RyzenAdjWindows · Linux | Two bars | — | 2 of 6 | Free | 6.5 | |
| 6 | ASUS GPU Tweak IIIWindows | Two bars | — | 1 of 6 | Free | 6.4 | |
| 7 | Intel VTune ProfilerWindows · Linux · Self-hosted | Two bars | — | 2 of 6 | Free | 6.4 | |
| 8 | Quick CPUWindows | Two bars | — | 1 of 6 | $2.25/mo | 6.4 | |
| 9 | Saku OverclockWindows | Two bars | — | 1 of 6 | Free | 6.4 | |
| 10 | Universal x86 Tuning UtilityWindows | Two bars | — | 1 of 6 | Free | 6.4 | |
| 11 | CoreCtrlLinux | Two bars | — | 1 of 6 | Free | 6.3 | |
| 12 | CoreFreqLinux · Self-hosted | Two bars | — | 1 of 6 | Free | 6.3 | |
| 13 | G-HelperWindows | Two bars | — | 1 of 6 | Free | 6.3 | |
| 14 | TuxClockerLinux | Two bars | — | 1 of 6 | Free | 6.3 | |
| 15 | Argus MonitorWindows | One bar | — | — | 1 of 6 | $1/mo | 5.5 |
| 16 | ZenMasterWindows · Mac · Linux | Two bars | — | — | 3 of 6 | — | 5.5 |
| 17 | ASUS Armoury CrateWindows | One bar | — | — | 1 of 6 | — | 5.4 |
| 18 | overclockSPDLinux | One bar | — | — | 1 of 6 | — | 5.4 |
| 19 | Notebook FanControlWindows · Linux | No signal | — | — | 2 of 6 | — | 5.3 |
| 20 | y-cruncherWindows · Linux | One bar | — | — | 2 of 6 | — | 5.3 |
| 21 | Prime95Windows · Mac · Linux | One bar | — | — | 3 of 6 | — | 5.2 |
| 22 | Fan ControlWindows | No signal | — | — | 1 of 6 | — | 5.1 |
| 23 | Handheld CompanionWindows | No signal | — | — | 1 of 6 | — | 5.1 |
| 24 | MSI CenterWindows | No signal | — | — | 1 of 6 | — | 5.1 |
| 25 | ZenStatesWindows | No signal | — | — | 1 of 6 | — | 5.1 |
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | CPU tuning | Memory tuning |
|---|---|---|---|---|---|---|---|---|
| 1 | HCI MemTest | 6.5 | Free plan | Free | Yes | 5 one-time | No | No |
| 2 | MemTest86 | 6.5 | Free plan | Free | Yes | — | — | — |
| 3 | MemTest86+ | 6.5 | Free plan | Free | Yes | — | — | — |
| 4 | OCCT | 6.5 | Free plan | €4.50/mo | Yes | — | Yes | No |
| 5 | RyzenAdj | 6.5 | Free plan | Free | Yes | — | Yes | No |
| 6 | ASUS GPU Tweak III | 6.4 | Free plan | Free | Yes | — | — | — |
| 7 | Intel VTune Profiler | 6.4 | Free plan | Free | Yes | — | — | — |
| 8 | Quick CPU | 6.4 | Free plan | $2.25/mo | Yes | 27 one-time | Yes | — |
| 9 | Saku Overclock | 6.4 | Free plan | Free | Yes | — | Yes | — |
| 10 | Universal x86 Tuning Utility | 6.4 | Free plan | Free | Yes | — | Yes | — |
| 11 | CoreCtrl | 6.3 | Free plan | Free | Yes | — | — | — |
| 12 | CoreFreq | 6.3 | Free plan | Free | Yes | — | Yes | — |
| 13 | G-Helper | 6.3 | Free plan | Free | Yes | — | Yes | — |
| 14 | TuxClocker | 6.3 | Free plan | Free | Yes | — | — | — |
| 15 | Argus Monitor | 5.5 | No | $1/mo | No | 16.45 one-time | — | — |
| 16 | ZenMaster | 5.5 | No | — | — | — | Yes | — |
| 17 | ASUS Armoury Crate | 5.4 | No | — | Yes | — | — | — |
| 18 | overclockSPD | 5.4 | No | — | Yes | — | No | Yes |
| 19 | Notebook FanControl | 5.3 | No | — | — | — | No | No |
| 20 | y-cruncher | 5.3 | No | — | Yes | — | No | No |
| 21 | Prime95 | 5.2 | No | — | Yes | — | — | — |
| 22 | Fan Control | 5.1 | No | — | Yes | — | — | — |
| 23 | Handheld Companion | 5.1 | No | — | Yes | — | Yes | — |
| 24 | MSI Center | 5.1 | No | — | — | — | — | — |
| 25 | ZenStates | 5.1 | No | — | Yes | — | Yes | — |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which PC overclocking software is ranked first on Freedom251?
HCI MemTest is ranked #1 of 30 with a score of 6.5. MemTest86 is second and MemTest86+ third.
How many of these have a free plan?
14 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Argus Monitor has the lowest first paid tier we found: $1/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.