Seasonic TX700 (Fanless) enough for recent GPUs or not?

[Meddling-Monk]

So I just want to grab some more experienced and knowledgeable members of the forum to confirm this. But according to reports I'm looking, the TX700 PSU I have is a 700W PSU for constant power, but it's OPP is actually at ~977W, making this more like a 850W PSU if I'm not mistaken. (It's comparable to the be quiet Pure Power 11 FM apparently that sits with near identical specs, only it is rated at 850W nominal vs 700W)

So am I right in thinking that "in theory", assuming the whole system doesn't pull any higher than 770W under a maximum load (10% of it's normal rated power, not what its overrated parts actually can deliver) and no spikes in total above 950W, this PSU can actually "in theory", power the 4080 or 7900 XTX? Both of which have been said to required 750W (bare minimum for 7900 XTX) to 850W (4080)?

Thanks all.

 

[JasonM]

Regarding fanless I would just get the regular Seasonic Titanium. The reason is Seasonic Titaniums (with a fan) the fan only activates above a certain load, and the fan is so quite you won't hear it anyway. Plus when the PSU is under load / hot summer day, with the fan version you have extra redundancy of the PSU being able to regulate it's temperature.

EDIT just realised you already have the PSU!

 

[Meddling-Monk]

LOL, yeah, sorry I didn't make that clear. I do have this PSU already. I'm just asking about it in theory as to whether what I'm thinking is accurate. If so, I may try grabbing the recent GPUs (but later when at a lower price of course ).

As for the fan, unfortunately, here we have some hard floors (and when not on floors, placed/raised onto a piece of wood and my mother refuses to let me carpet the place, so I need to work with the limitations I have; her place, her rules), this means that PSU's that have fans that are mounted at the bottom of the case, actually becomes quite noticeable. Even when fans are running really slowly. That's the reason why I went with fanless (all cases so far have been bottom mounts). That, or pay even more for the higher spec'd PSU's with fans that stayed fanless (just a bit more) ahead of the TX700.