LibreHardwareMonitor open-source hardware monitoring

AM4 launched in 2016 and it is still shipping new Ryzen 5000 chips in 2026. That is a decade of socket compatibility, and for anyone running a 3600, 3700X, or first-gen 5000 series, the platform still has room for one more meaningful upgrade before it retires. The trick is not overspending on the wrong part. We tested seven apps that plan AM4 upgrades from the boring end: measuring what our current rig actually bottlenecks on, then picking the CPU, GPU, RAM, or SSD that fixes it.

What to look for in a PC upgrade planning app

An upgrade planner has one job: help us spend the right money on the right part. That means:

Quick comparison

App Best for Platforms Free plan Standout feature
LibreHardwareMonitor Open-source system monitoring Windows Free, open source Real-time sensor readouts
HWiNFO Detailed hardware inventory Windows Free for personal use Every sensor, every module
PCPartPicker Build planning and compatibility Web, iOS, Android Free Live retailer prices
CPU-Z CPU identification Windows Free Exact chip stepping and cache
GPU-Z GPU identification Windows Free Detects VRM and BIOS revision
CrystalDiskInfo SSD health check Windows Free, open source SMART data readouts
Ryzen Master AMD-only tuning Windows Free Curve Optimizer for Zen 3

The apps

1. LibreHardwareMonitor, best overall for real-time monitoring

LibreHardwareMonitor is the actively maintained fork of the classic OpenHardwareMonitor. It reads CPU frequency, temperature, voltage, GPU load, and per-core Ryzen sensor data. Runs in a lightweight window we can tuck into a corner while gaming or transcoding. The sensor data is what tells us whether an upgrade to a Ryzen 7 5700X3D is worth it or the current 5600 is already keeping up.

Where it falls short: Windows only. No historical logging by default.

Pricing:

Platforms: Windows

Download: Publisher site · GitHub Releases

Bottom line: The first tool to install before spending on an AM4 upgrade. Two nights of monitoring tells us more than any benchmark chart.

2. HWiNFO, best for detailed hardware inventory

HWiNFO goes deeper than LibreHardwareMonitor by exposing every sensor, every RAM module timing, and every motherboard chip revision. If we need to know the exact BIOS version we are running or whether our chipset supports Precision Boost Overdrive, HWiNFO tells us in one screen.

Where it falls short: Interface is dense. Free version limits some logging features.

Pricing:

Platforms: Windows

Download: Publisher site

Bottom line: For anyone planning a BIOS update before an upgrade. Confirms compatibility down to the memory module SPD.

3. PCPartPicker, best for planning and compatibility

PCPartPicker builds a shopping list with live prices and checks for wattage, memory speed compatibility, and socket type. The AM4 filter surfaces exactly which Ryzen chips work with our motherboard’s BIOS version. Community-shared build lists show what other AM4 upgraders picked at each budget.

Where it falls short: Compatibility checks are conservative; some edge cases show false warnings. Retailer coverage varies by country.

Pricing:

Platforms: Web, iOS, Android

Download: Publisher site

Bottom line: The default place to price an upgrade. Bookmark the AM4 filter.

4. CPU-Z, best for precise CPU identification

CPU-Z identifies the exact CPU we have, its stepping, cache configuration, and current frequency. If we bought a used AM4 chip and want to confirm it is not an OEM variant with locked features, CPU-Z is the fastest check. Built-in benchmarks let us compare against other Ryzen chips at a glance.

Where it falls short: Windows only. Benchmarks are synthetic and short.

Pricing:

Platforms: Windows

Download: Publisher site

Bottom line: For upgraders sourcing used AM4 chips. Confirms exact model in under a minute.

5. GPU-Z, best for GPU identification

GPU-Z does for the graphics card what CPU-Z does for the CPU. Detects VRM revision, VRAM manufacturer, and BIOS build. On used RX 6600 or RTX 3060 cards, it flags whether the card has been re-flashed for mining.

Where it falls short: Only reports; does not benchmark.

Pricing:

Platforms: Windows

Download: Publisher site

Bottom line: For anyone buying a used GPU for an AM4 upgrade. Reveals what the seller might not.

6. CrystalDiskInfo, best for SSD health

CrystalDiskInfo reads SMART data from every SSD and NVMe drive in the system, showing wear percentage, hours powered on, and any pending errors. If our AM4 build is on a five-year-old SATA SSD, this tool decides whether it needs replacing before we spend on a CPU or GPU.

Where it falls short: Windows only. Some cheap USB enclosures block SMART pass-through.

Pricing:

Platforms: Windows

Download: Publisher site · GitHub Releases

Bottom line: Two minutes of use saves the eventual cost of a data recovery. Run it before any upgrade.

7. Ryzen Master, best for AMD-specific tuning

Ryzen Master is AMD’s official tool for adjusting core clocks, voltage, and Precision Boost Overdrive on Ryzen chips. On AM4 with a Zen 3 chip, Curve Optimizer alone can gain 5 to 10 percent effective performance for free. Also confirms whether the CPU is thermally limited before we buy a bigger cooler.

Where it falls short: AMD chips only. UI has a learning curve.

Pricing:

Platforms: Windows

Download: Publisher site

Bottom line: Run Curve Optimizer for an hour before buying a new chip. Sometimes the upgrade we wanted is already in the box.

How to pick the right one

If we want one monitoring app that just works: LibreHardwareMonitor.

If we need every sensor exposed: HWiNFO.

If we are shopping and pricing: PCPartPicker.

If we are verifying a used CPU purchase: CPU-Z.

If we are verifying a used GPU purchase: GPU-Z.

If we suspect the storage is the actual bottleneck: CrystalDiskInfo.

If we own an AM4 Ryzen chip and have not tried Curve Optimizer: Ryzen Master first, before any new hardware.

FAQ

Is AM4 still worth upgrading in 2026?

Yes. The Ryzen 5700X3D and 5800X3D remain strong gaming CPUs at their current used prices. Sticking with AM4 saves us a motherboard, RAM, and cooler swap.

What is the best free tool for planning a PC upgrade?

PCPartPicker for parts and prices, LibreHardwareMonitor for measuring what to upgrade first.

Do I need Ryzen Master?

Only for AMD chips, and only if we want to squeeze more from the current CPU before buying a new one. Curve Optimizer on Zen 3 is a real gain.

Which app tells me if my motherboard supports a specific Ryzen chip?

HWiNFO reveals the exact BIOS version. PCPartPicker’s compatibility checker cross-references that against the CPU support list.

Is there a Mac or Linux version of these tools?

PCPartPicker is web-based and works everywhere. Everything else is Windows only. On Linux, lm-sensors and s-tui cover similar ground for monitoring.