(on Wikipedia)
https://www.techpowerup.com/gpuz/

A GPU (graphics card) information utility.

Included in FurMark.

• 2021-06-05 – 2.40.0 on Windows 10 Home

• I had been using 2.38.0 and earlier versions for some time.

Usage ∞

PerfCap ∞

In the Sensors tab.

• vRel – Reliability

  • Indicating performance is limited by voltage reliability.

• VOp – Operating

  • Indicating performance is limited by max operating voltage(Hardware Limit).

• Pwr – Power

  • Indicating performance is limited by total power limit.

• Thrm – Thermal

  • Indicating performance is limited by temperature limit.

• Util – Utilization

  • Indicating performance is limited by GPU utilization.