CPB in BIOS stands for Core Performance Boost, an AMD technology that allows your processor to dynamically increase its operating frequency when needed.
Understanding Core Performance Boost (CPB)
At its core, CPB is a performance-enhancing feature implemented by AMD. It works by automatically adjusting the CPU's speed based on the current workload.
According to AMD, Core Performance Boost (CPB), also known as AMD Turbo Core, is defined as:
"...a dynamic frequency scaling technology implemented by AMD that allows the processor to dynamically adjust and control the processor operating frequency in certain versions of its processors which allows for increased performance when needed while maintaining..."
This means that when your computer is running demanding tasks, like playing games or editing videos, CPB can make the CPU cores run faster than their base clock speed, providing a noticeable performance boost. When the tasks are light, the CPU frequency scales down to save power and reduce heat.
CPB as a BIOS Setting
You often find a setting for CPB within your motherboard's BIOS (Basic Input/Output System) or UEFI (Unified Extensible Firmware Interface). This setting typically allows you to:
- Enable CPB: This is usually the default setting and allows the CPU to utilize its dynamic clock boosting capability.
- Disable CPB: Turning this off prevents the CPU from boosting above its base clock speed.
Why Enable or Disable CPB?
| Action | Potential Benefit | Potential Drawback |
|---|---|---|
| Enable | Higher performance in demanding tasks | Increased power consumption and heat |
| Disable | Lower power consumption and heat | Reduced peak performance |
For most users seeking the best performance from their AMD processor, keeping CPB enabled is recommended. However, disabling it can be useful in specific situations, such as troubleshooting system instability, reducing heat in systems with inadequate cooling, or minimizing power usage.
In summary, the CPB setting in your BIOS gives you control over AMD's dynamic frequency boosting technology, allowing you to balance performance with power consumption and heat generation.
