MemTest86 is a standalone RAM diagnostic program that boots from USB and checks memory for faults without an installed operating system.
Alternatives to SMUDebugTool
HCI MemTest checks whether a computer can store and retrieve data from memory reliably.
CoreCtrl is a free, open-source GNU/Linux application for controlling computer hardware through profiles.
- 4
AIDA64
AndroidiOSWindows7.0€59.95 one-time - 5

ASUS GPU Tweak III
ASUS GPU Tweak III is free Windows software for adjusting system parameters on NVIDIA and AMD desktop graphics cards, including overclocking, voltage, and fan control.
Free planWindows6.7Free plan - 6

OCCT
OCCT is a PC tool for checking stability, applying stress tests, benchmarking, and monitoring system details.
Free planLinuxWindows6.6Free plan - 7
Intel VTune Profiler
Intel VTune Profiler analyzes application and system performance to help developers locate bottlenecks across AI, HPC, cloud, IoT, media, and storage workloads.
Free planLinuxSelf-hostedWindows6.5Free plan - 8
Universal x86 Tuning Utility
Universal x86 Tuning Utility (UXTU) is a free Windows utility for adjusting processors and GPUs in x86 laptops and computers.
Free planWindows6.5Free plan - 9
y-cruncher
y-cruncher computes Pi and other mathematical constants to trillions of digits, and also serves as a multi-threaded benchmark and stress-testing…
Free planLinuxWindows6.5Free plan - 10

Fan Control
Fan Control is free, highly customizable fan-control software for Windows 10 and Windows 11.
Free planWindows6.4Free plan - 11
6.4From $15 a month - 12
Quick CPU
Quick CPU is a Windows utility for monitoring, tuning, and stability-testing Intel and AMD processors.
Free planWindows6.4From $27 a year - 13

Argus Monitor
Argus Monitor is Windows software for controlling fans and monitoring system hardware.
Windows6.3 - 14
MemTest86+
MemTest86+ is a free, open-source stand-alone memory tester for x86, x86-64, ARM AArch64, and LoongArch64 computers.
Free planLinuxmacOSWindows6.2Free plan - 15
Prime95
Prime95 is free software for searching for Mersenne primes and contributing computing work to GIMPS, an international public project.
Free planLinuxmacOSSelf-hostedWindows6.2Free plan - 16

Hypertune
Hypertune is a Windows application that tunes gaming PCs at the hardware and system level, with the aim of improving frame rates, gameplay smoothness, and latency.
Windows6.1From $59.99 a year - 17
RyzenAdj
RyzenAdj is a free command-line utility for changing power-management settings on Ryzen mobile processors.
Free planLinuxWindows6.0Free plan - 18
TuxClocker
TuxClocker is a free GNU/Linux program for monitoring and controlling hardware, with a D-Bus daemon and Qt graphical interface.
Free planLinux6.0Free plan - 19

G-Helper
G-Helper is a free, portable Windows control tool for tuning performance, fans, GPU, battery, and RGB on Asus laptops and handhelds.
Free planWindows5.9Free plan - 20
MSI Center
MSI Center is a free Windows application for managing features on MSI gaming systems.
Windows5.9 - 21
Notebook FanControl
Notebook FanControl (NBFC) is a free, open-source service for controlling notebook fans on Windows and Linux.
Free planLinuxWindows5.9Free plan - 22
Handheld Companion
Handheld Companion is a free, open-source Windows app for controlling handheld gaming PCs through a touch-optimized interface.
Free planWindows5.8Free plan - 23

Saku Overclock
Saku Overclock is a free, open-source Windows utility for tuning AMD Ryzen laptops.
Free planWindows5.8Free plan - 24
CoreFreq
CoreFreq is free CPU monitoring software for Linux, built around a kernel module, daemon and command-line client.
Free planLinuxSelf-hosted5.7Free plan - 25
ZenMaster
ZenMaster is a free, open-source Python tool for configuring AMD Zen processors through the System Management Unit.
LinuxmacOSSelf-hostedWindows5.7 - 26

ASUS Armoury Crate
ASUS Armoury Crate is free Windows software for managing an ASUS or ROG gaming PC and supported connected devices.
Windows5.6 - 27
BurnInTest
LinuxWindows5.6From $58 a year - 28
Karhu RAM Test
Karhu RAM Test is a paid Windows memory stress-testing tool designed to detect faulty hardware and instability from overclocking.
Windows5.4 - 29
overclockSPD
overclockSPD is a free GPL-3.0 project of Linux shell and Python scripts for reading and writing RAM SPD data and changing memory timings, voltages, and configuration.
Linux5.2 - 30
ZenStates
Windows5.2