SBOA431 September   2020 TMP1075 , TMP108 , TMP112 , TMP144 , TMP461 , TMP464 , TMP468

 

  1.   Trademarks
  2. 1Introduction
  3. 2What is a CPU, GPU, and SoC?
  4. 3Temperature vs. Performance
    1. 3.1 Benefits of Faster Processors
    2. 3.2 Overclocking and Underclocking (Clock Throttling)
      1. 3.2.1 Overclocking
      2. 3.2.2 Underclocking (Clock Throttling)
    3. 3.3 Cooling Systems
  5. 4Benchmarking
    1. 4.1 Benchmarking Data
      1. 4.1.1 Smartphones
      2. 4.1.2 Gaming PCs
        1. 4.1.2.1 Gaming PC CPU Performance
        2. 4.1.2.2 Gaming PC GPU Performance
  6. 5How to get Accurate CPU/GPU Temperature
    1. 5.1 Using Local Temperature Sensor
    2. 5.2 Using Remote Temperature Sensor
  7. 6Summary

1 Introduction

CPUs and GPUs can get extremely hot and going above their thermal design point can cause irreversible damage. To avoid these devices from overheating cooling systems such as heat sinks, fans, and sometimes expensive liquid cooling systems, are integrated into the system. Along with these cooling systems, thermal safety margins are implemented to ensure the processing units do not exceed their limits. When the temperature of a CPU or GPU approaches the thermal limit, the clock speed will throttle to protect the CPU or GPU, degrading its performance. Due to inaccuracies of the temperature measurements, the safety margins must be larger and the processor will start to slow its performance earlier than necessary. Because of this, getting more accurate temperature data is crucial to optimizing a processors performance, which maximizes the overall user experience.