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When the power supply suddenly switches off: Load peaks of graphics card and CPU measured together and counter-tested with power supplies | Basics & Practice

Torture loop in factory state

If you load the Radeon RX 6800 properly and use a stress test, the high spikes almost completely disappear! A whole 360 watts come together here for 12 volts, which all power supplies still manage easily. On the EPS, the average is 140 watts, the spikes are barely higher at just under 171 watts. Unsuspicious, then.

If we look at the curves of the stress test, everything is also much more relaxed here than with the RTX 3070. From this point of view, AMD has done everything right in terms of avoiding peak loads.

You can also see this in the high-resolution diagram, where you can see the intervention of the arbitrator, but everything happens much smoother and more relaxed.

Torture loop with overclocking

It also goes a bit hungrier once you really overclock the card, because the Ryzen 9 can do that. It’s now averaging just under 455 watts on 12 volts over the whole run, with the spikes still more restrained than feared at just under 559 watts. So with this card you will not experience a Waterloo.

This is also shown by the spikes, hardly subject to an optical increase when trembling. Slightly higher values, but no rushes or runaways to the top.

Only the high-resolution curve shows that it is now also necessary to reduce the speed a little more frequently in order not to exceed the limit.

Power supply test

  Torture Loop Stock Torture Loop OC
Straight Power 550 Watt Platinum ok ok
Straight Power 650 Watt Gold ok ok
Pure Power 500 Watt Gold switched off switched off
Pure Power 700 Watt Gold ok ok

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About the author

Igor Wallossek

Editor-in-chief and name-giver of igor'sLAB as the content successor of Tom's Hardware Germany, whose license was returned in June 2019 in order to better meet the qualitative demands of web content and challenges of new media such as YouTube with its own channel.

Computer nerd since 1983, audio freak since 1979 and pretty much open to anything with a plug or battery for over 50 years.

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