Nvidia’s RTX 4080 graphics card can boost power usage to 100W more than the RTX 3080, if the GPU vine is in the money.
This latest rumor about next-gen Lovelace GPUs comes from a huge speculation on the topic of power consumption (or TGP), and Twitter leaker Kopite7kimi now believes the RTX 4080 will require 420W from the power supply (PSU).
Possible RTX 4080, PG139-SKU360, has a TGP of 420W, still uses AD103.June 6, 2022
Of course, this is just a rumor, so remain skeptical as ever, but as a general suggestion of where things might be going with the RTX 4000’s power usage, it doesn’t sound very reassuring.
Keep in mind that the RTX 3080 draws 320W (the original 10GB incarnation), so as mentioned this is a theoretical 100W boost.
In fact, the RTX 3090 pulls 350W, so the 4080 is way ahead of that, and not too far from the level of the RTX 3090 Ti which has a TGP of 450W – and Nvidia recommends an 850W PSU for that GPU, no less. (Remember, this is a Minimum spec too, which means those who are going to push things with faster high-end CPUs and overclocked components in their PCs would be wise to go for some decent space above that).
Analysis: A bitter PSU pill to swallow? Possibly, but that’s no real surprise
Does that mean we’re looking at an RTX 4080 that requires an 800W power supply, so or so? Well, that seems like a likely possibility if that 420W number for TGP is correct.
All of this may seem strange, but it’s not really a surprise. There’s been a lot of talk about the hefty power draw for Lovelace on the vine for a long time, as Nvidia apparently seems to put the pedal firmly on the metal in terms of revved-up performance. And regarding the RTX 4080 specifically, we had previously expected something like 350W to 450W for the TGP. We’d expect 400W to be fine if that guest estimate is correct, but 420W isn’t too far off.
Of course, that doesn’t mean this won’t be a bitter PSU pill for some gamers to swallow, as not everyone has an 800W+ unit nestled into their PC. And it’s not just the extra cost of a power supply upgrade, it’s one of the most complicated procedures in terms of cabling; the whole thing is a bit faff.
The TGP situation could have been worse by all accounts, because Kopite7kimi was still talking about the possibility of the RTX 4080 hitting 450W not much more than a few days ago.
Of course, it could be the case that this speculation, or the leaker’s sources, are considerably wrong, but at this point, that seems unlikely (and the rest of the rumor doesn’t, broadly disagree). Furthermore, Kopite7kimi claims that they are 99% confident in this latest 420W prediction, which is a pretty strong statement to make.
Another interesting point here is that if the RTX 4080 ends up at 420W, for the sake of argument, where does that leave the RTX 4090? More recently, we’ve heard that the flagship will require 450W, which isn’t much more than the 4080’s supposed consumption – just 30W.
This has led some to suggest that we could be looking more towards 500W for the 4090, but that’s not necessarily the case. There may only be a 30W difference between the RTX 4080 and 4090 in Nvidia’s previous form, because in fact, if you look at the 3080 and 3090, the difference was exactly that – a 320W power consumption for the former and 350W for the latter. The obvious problem now, though, is that instead of just one main territory – which should be tough and demanding GPU terrain – we’re looking at tier xx80 supposedly demanding what could be an 800W PSU requirement (or maybe even larger). .
Whatever the case, these RTX 4000 graphics cards don’t seem like an easy ride for PSUs. The closer we get to Lovelace’s release, the more accurate these predictions should theoretically be – and if the rumor is right about Nvidia’s planned release date, the RTX 4090 could arrive in August, which isn’t far off right now.