The specific temperature limit for a CPU can vary depending on the manufacturer and model. However, in general, 85 degrees Celsius is considered quite high for a CPU under load.
Most modern CPUs have a maximum temperature threshold specified by the manufacturer, often referred to as the "Tjunction" or "TjMax" temperature. For many CPUs, this maximum temperature is typically around 90-100 degrees Celsius. When a CPU reaches or exceeds this temperature, it can lead to thermal throttling, where the CPU reduces its performance to prevent overheating.
While CPUs can withstand high temperatures for short periods, sustained operation at 85 degrees Celsius can potentially have negative effects on the CPU's longevity and stability. It's generally recommended to keep the CPU temperatures well below the maximum specified limit for optimal performance and reliability.
To ensure proper cooling and temperature management for your CPU, make sure you have an adequate cooling solution such as a CPU cooler or liquid cooling system in place. Additionally, monitoring software or BIOS settings can help you keep an eye on your CPU temperature and adjust fan speeds or other settings if necessary.