#AskPCGH on RTX 4000: Raff answers your questions
Manu has collected your #AskPCGH questions and presented them to our graphics card guru Raff. Even if there isn’t a broad data base yet, Raff has, as expected, a pretty good idea of the new GPU generation from Nvidia and can answer a lot of related questions even before the test.
Of course, the performance of the new RTX 4000 graphics cards is interesting. This round of questions still refers to the pre-test period. Nevertheless, there is already enough knowledge to process. How strong does the power supply have to be for a Geforce RTX 4090? What custom designs are coming to market? Is it already foreseeable whether the availability of the last few years will remain as bad? Moderator Manu and Raytracer Raff clarify these and many other questions from the community in an entertaining dialogue. The video is a bit long, but it’s worth checking out!
RTX 4000: How many watts does the power supply need?
The new GPU generation Ada Lovelace is not only more efficient, the big top models also consume significantly more power. The power supply must be able to deliver far more watts than just the TGP. According to a current FAQ post in the official forum, since the announcement of the Geforce RTX 40 series, Nvidia has experienced an increase in user questions about the power supply and the compatibility of their existing PC systems and has now explained the most important details here.
Accordingly, no new power supply is required if you already meet the following recommendations for wattage and a suitable adapter for use with existing 8-pin PCI-E connectors is supplied with the new graphics cards. Alternatively, the new PCI-E Gen5 power connector can also be used, if available.
Nvidia now gives wattage figures
In terms of power consumption, the Geforce RTX 4090 has a total graphics power (TGP) of 450 watts and the recommended “minimum power supply” should have 850 watts. Meanwhile, the RTX 4080 (16 GB) with its TGP of 320 watts should be supplied with a recommended power supply of at least 750 watts and the RTX 4080 (12 GB) with a power supply of at least 700 watts nominal power.
The power requirement has meanwhile remained the same or dropped, while the computing power has increased significantly according to Nvidia: The RTX 4090 needs just as much power as the RTX 3090 Ti, the RTX 4080 (16 GB), for example, 30 watts less than the RTX 3080 Ti and the RTX 4080 (12GB) consumes 65 watts less than the RTX 3080 (12GB).
Reference-www.pcgameshardware.de