OCCT vs stress-ng

OCCT is a PC tool for stability and stress testing, benchmarking, and system monitoring. Its tests cover CPU, GPU, memory, VRAM, and power supplies, while CPU and memory benchmarks include memory latency and bandwidth measurements. System monitoring and system information use HwInfo. OCCT runs on Windows and Linux. The free Personal edition is for individual use, including PC enthusiasts, overclockers, and gamers, and cannot be used in a commercial or business environment. Personal users need one license per household. Supporter costs €4.50 per month and adds unlimited test duration, no wait time, test reports, and stability certificates; Supporter+ costs €7.00 per month and adds more certificate slots. Pro, Enterprise, and Enterprise+ are the editions directed to business users, with prices available on request, and professional licenses are specific to Windows or Linux. Enterprise includes JSON, CSV, and PDF report export and command-line test automation. It can also run portably from a USB drive or network location without installation or internet access; the On-Premise option keeps system and test data within the customer's infrastructure.

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