High-resolution measurements in ATX 3.0 range under 1 ms
Because I would like to know it however still completely exactly, I resolve the whole once still more highly and take 20 ms as total running time. The intervals of 10 microseconds can just be measured sensibly and we also see the voltage here as a gray curve, whose average value is clearly above 12 volts, but which nevertheless still alternates somewhat within the permissible range. I already wrote something about ATX 3.0 and the voltages.
If you then convert that to the power consumption in watts, you get this picture:
I also did the whole thing again for the Torture loop, where we get to admire the regular drops. First of all, the streams again, but in each rise still have plenty of peculiar, sporadic drops. This looks like a violent hiccup before the power is really throttled again shortly afterwards.
Here is a comparison with the GeForce RTX 4080, which has to downshift much more often:
And then again total wattage:
Power supply recommendation
Now we come to the point that completely reduces the expected sensation of exploding power supplies to absurdity. Thus, you should always stay well below 600 watts, even together with the CPU, if you count up to 10 ms. Because it is what the power supplies still “see”. With a little reserve, 600 watts is sufficient.
To that end, I also formulate my power supply recommendation, that of the GeForce RTX 4070 Ti, that you should be able to get by quite safely with a modern 650-watt Gold or Platinum power supply. If you want to overclock, you don’t really have to budget much more, which is especially true for the board cards.
| be quiet! |
Straight Power 11 650 Watt Gold |
| Sharkoon |
Silent Storm Cool Zero 650 watts |
| Corsair |
RM 650 Gold 650 Watt |
- 1 - Introduction, technical data and technology
- 2 - Test system and the igor'sLAB MIFCOM-PC
- 3 - Teardown: PCB and components, cooler
- 4 - Summary: gaming performance WQHD (2560 x 1440)
- 5 - Summary: gaming performance Ultra-HD (3840 x 2160)
- 6 - Detailled metrcis for WQHD (2560 x 1440)
- 7 - Detailled metrcis for Ultra-HD (3840 x 2160)
- 8 - Workstation and rendering
- 9 - Details: Power consumption and load sharing
- 10 - Load peaks, capping and PSU recommendation
- 11 - Temperatures, clock rates and infrared analysis
- 12 - Fan curves and noise with audio sample
- 13 - Summary and conclusion
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