CPU-Z gathers detailed information on some of the main devices of your system, including CPU, memory (RAM), mainboard and operating system. It supports a variety of processors and chipsets and does not require any installation. CPU-Z is a freeware that gathers information on some of the main devices of your system.
CPU:
>Name and number.
>Core stepping and process.
>Package.
>Core voltage.
>Internal and external clocks, clock multiplier.
>Supported instructions sets.
>Cache information.
Mainboard:
>Vendor, model and revision.
>BIOS model and date.
>Chipset (northbridge and southbridge) and sensor.
>Graphic interface.
Memory:
>Frequency and timings.
>Module(s) specification using SPD (Serial Presence Detect) : vendor, serial number, timings table.

CPU-Z also provides several tools :
* A complete report, that includes CPUID, MSR, PCI device list, SPD, DMI.
* A cache latency calculation tool

What's New in This Release:
* New 64-bit version.
* Intel Core i5 and Core i3 processors.
* AMD Phenom TWKR support.
* AMD Opteron 6-core "Istanbul" processor.

The license of this software is Freeware, you can free download and free use this cpu benchmark software.