CPU-Z is a freeware system profiler (system monitor) application for Microsoft Windows (for all versions from 95 on) that detects the central processing unit, RAM, motherboard chipset, and other hardware features of a modern personal computer, and presents the information in one...
HWiNFO are professional hardware information and diagnostic tools supporting latest components, industry technologies and standards. Both tools are designed to collect and present the maximum amount of information possible about computers hardware which makes them suitable for...
HWiNFO (32/64) vs Intel® Processor Diagnostic Tool opinions
It's a total different application.
Speccy is an advanced System Information tool for your PC, available as installer version and as portable version in 24 languages. It does a quick scan of your machine and gives you a complete rundown of every piece of gear that's in your computer.Bundleware
The installer propose you to install additional third party software like Google Chrome
AIDA64 is a system information, diagnostics, and auditing application developed by FinalWire Ltd., that runs on Windows, Android, iOS, Windows Phone and Tizen operating systems. It displays detailed information on the components of a computer.
hwinfo/libhd are used to probe for the hardware present in the system. It can be used to generate a system overview log which can be later used for support.
hwinfo vs Intel® Processor Diagnostic Tool opinions
Gives only list of components and features.
A simple application to view your exact hardware on macOS. Similar to About This Mac, but with more features, including AMD Processor Support, display resolution, and more! It retains the old "About This Mac" design language and is supported on both Hackintoshes and...