StressMyPC is a great portable freeware application with a simple premise: test how long your PC battery can go before the battery dies. You can start and stop the stress test for the CPU, perform a hardcore stress test of the CPU, stress the GPU and perform stress tests for the hard drive.StressMyPC features and highlights:
StressMyPC is licensed as freeware for the Windows (32-bit and 64-bit) operating system / platform from hardware diagnostic software without restrictions. StressMyPC 3.31 is available to all software users as a free download (Freeware).
Compatibility with this CPU stress tester software may vary, but will generally run fine under Microsoft Windows 10, 8, 8.1, 7, Vista and XP on either a 32-bit or 64-bit setup. A separate x64 version of StressMyPC may be available from Nenad Hrg.
We have tested StressMyPC 3.31 against malware with several different programs. We certify that this program is clean of viruses, malware and trojans.