Vitals Continued: Load Testing
In our next test, we set our test machine up to run two iterations of Prime95’s torture test set for maximum power draw and heat. As with our Idle testing, each PSU was allowed to run for thirty minutes before recording the readings.
When we review the results of the CPU load test, we find similar scaling as recorded in our idle tests. The ToughPower 750w managed the least draw at 309 watts while the Ultra X3 1000w ran 8w higher at 317w. The Tagan TG1100 proved to be the most power hungry of the three, drawing 335w, 18w higher than of the Ultra X3.
Load Testing: 100% CPU Load Plus GPU Load Just Add Power
To further stress each PSU, we continued to run Prime95’s torture test while loading a level of BioShock at 1600x1200 with maximum settings in game.