Hardware monitoring and Benchmarking

Central Brain Identifier is the solution, designed for AMD processor identification. This software recognizes more than 50 various models of the AMD processors and includes over 400 OPN numbers. It reports all the technical information and technical features you need on your processor, such as processor core name, core revision, nominal processor frequency, date of announce, OPN number, etc.
CPU-Z is a freeware that gathers information on some of the main devices of your system.
GPU-Z is a lightweight utility designed to give you all information about your video card and GPU.
CrystalCPUID is a CPU utility software.
Memtest86 is a comprehensive, stand-alone memory diagnostic.
SiSoft Sandra is an information & diagnostic utility. It should provide most of the information (including undocumented) you need to know about your hardware, software and other devices whether hardware or software.
SpeedFan is a freeware program that monitors voltages, fan speeds and temperatures in computers with hardware monitor chips.
3Dmark 06 is the worldwide standard in advanced 3D game performance benchmarking. A fundamental tool for every company in the PC industry as well as PC users and gamers, 3DMark06 uses advanced real-time 3D game workloads to measure PC performance using a suite of DirectX 9 3D graphics tests, CPU tests, and 3D feature tests.
Aquamark allows PC users to easily benchmark their current and next-generation PCs by measuring and comparing the performance of the systems.
rthdribl is a real-time high dynamic range image-based lighting demo.
Fraps - 3D benchmark, it is a universal Windows application that can be used with all games using DirectX or OpenGL technology.
SuperPI It takes this program 3 days with Pentium 90MHz, 40MB main memory and 340MB available storage, to calculate 33.55 million digits.
CPU Rightmark - cpu overclock.
Core Temp is a compact, no fuss, small footprint program to monitor CPU temperature.
ATiTool is an overclocking utility designed for ATI and NVIDIA video cards.
ATI Tray Tools is a Full Featured Radeon Tweaker that can be found in the windows tray which then allows instant access to options and settings.
aTuner is an easy-to-use tweak-tool for GeForce-, Quadro- and Radeon-graphiccards
RivaTuner is a complete powerful tweaking environment, providing you everything you may need to tune NVIDIA GPU based display adapters.
Nokia Monitor Test is a collection of test that can be used to check CRT monitor performance. The application contains test patterns for Geometry, Convergence, Resolution, Moiré, Brightness, Contrast, Focus, Readability, Color and Screen Regulation.
UDPixel helps to locate and fix LCD screens dead pixels.