3 ms·
A 4090 draws 450W unless you unlock the power limit
by WithinReason 2y ago
A 4090 draws 450W unless you unlock the power limit
- Timshel 2y agoTransient might be an issue. GN discuss transients of ~30/40% over the nominal 450w (https://www.youtube.com/watch?v=j9vC9NBL8zo&t=616s https://www.youtube.com/watch?v=j9vC9NBL8zo&t=616s). And with a distributed training you can end-up with "synchronized" transients over all cards :(.
- jagrsw 2y agoI hold an electrical certification in the EU, though I'm not currently practicing. A quick point: transient surges are usually fine. Both cables and circuit breakers are designed to fail (trip or burn out) under sustained overloads. For example, a 16A Class C circuit breaker might take around an hour to trip with a constant 17A load, but a ~80A load would trip it ~instantly. PS: Of course, everything is a matter of integration over time (heat dissipation in cables mostly).
- zten 2y agoThe workstation equivalent, the RTX 6000 Ada, defaults to 300W. You can get most of the performance of a 4090 by capping the power.