15-Day Usage
While this wasn’t mentioned in previous reviews, we would like to highlight that power supply units we’ve reviewed have been used for a least 15 days in our testing setup for casual use and gaming. During this review period, I had the opportunity to play Battlefield 6 with the test PC powered by the REVOLUTION III 850W, and there were no abnormalities experienced in terms of power supplied to the computer. The test PC configuration is as follows:
Efficiency Graph
Like most PSUs, the REVOLUTION III 850W's efficiency peaks at 50% load.
Voltage Regulation Testing
We test PSU voltage regulation using a multimeter alongside a high-precision wattmeter and power analyser connected to the +12V, +5V, and +3.3V output rails. Three +12V lines are measured separately: one from the PCIe cable, one from the EPS cable, and one from the peripherals cable. A system-wide wattmeter is also used to record total power draw. A combination of different software and additional hardware, like cooling fans, has been used to generate different wattage loads.
Results
Voltage Regulation
The ENERMAX REVOLUTION III 850W delivers exceptionally tight voltage regulation across varying loads, maintaining deviations within roughly ±1%. This performance reflects the PSU’s solid engineering and build quality. Equipped with industrial-grade Japanese Rubycon and Nippon Chemi-con capacitors, it ensures stable and consistent power delivery, exactly the kind of reliability you’d want in a high-quality power supply.
Acoustics
The REVOLUTION III 850W operates with impressive quietness. At low loads, our sound meter recorded peaks of 49 dBA. The PSU's fan is non-PWM, thus it will constantly run at this surprisingly quiet speed. Despite lacking a zero-fan mode and PWM control functions that are typically found in higher-priced models, its cooling fan manages airflow efficiently, keeping noise well within comfortable limits.
While this wasn’t mentioned in previous reviews, we would like to highlight that power supply units we’ve reviewed have been used for a least 15 days in our testing setup for casual use and gaming. During this review period, I had the opportunity to play Battlefield 6 with the test PC powered by the REVOLUTION III 850W, and there were no abnormalities experienced in terms of power supplied to the computer. The test PC configuration is as follows:
CPU: Intel Core i7-13700K
Cooling: Noctua NH-U12A chromax.black
Motherboard: GIGABYTE Z790 AORUS EXTREME X
Graphics Card: GIGABYTE GeForce RTX 3070 EAGLE OC
Memory: ADATA XPG Lancer DDR5-8000 2x16GB Kit
Storage: ADATA Legend 960 Max 1TB
Cooling: Noctua NH-U12A chromax.black
Motherboard: GIGABYTE Z790 AORUS EXTREME X
Graphics Card: GIGABYTE GeForce RTX 3070 EAGLE OC
Memory: ADATA XPG Lancer DDR5-8000 2x16GB Kit
Storage: ADATA Legend 960 Max 1TB
Efficiency Graph
Like most PSUs, the REVOLUTION III 850W's efficiency peaks at 50% load.
Voltage Regulation Testing
We test PSU voltage regulation using a multimeter alongside a high-precision wattmeter and power analyser connected to the +12V, +5V, and +3.3V output rails. Three +12V lines are measured separately: one from the PCIe cable, one from the EPS cable, and one from the peripherals cable. A system-wide wattmeter is also used to record total power draw. A combination of different software and additional hardware, like cooling fans, has been used to generate different wattage loads.
Results
Voltage Regulation
The ENERMAX REVOLUTION III 850W delivers exceptionally tight voltage regulation across varying loads, maintaining deviations within roughly ±1%. This performance reflects the PSU’s solid engineering and build quality. Equipped with industrial-grade Japanese Rubycon and Nippon Chemi-con capacitors, it ensures stable and consistent power delivery, exactly the kind of reliability you’d want in a high-quality power supply.
Acoustics
The REVOLUTION III 850W operates with impressive quietness. At low loads, our sound meter recorded peaks of 49 dBA. The PSU's fan is non-PWM, thus it will constantly run at this surprisingly quiet speed. Despite lacking a zero-fan mode and PWM control functions that are typically found in higher-priced models, its cooling fan manages airflow efficiently, keeping noise well within comfortable limits.
