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Best PSU for a RTX 4090 build?

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Basshunter:
Hey everybody. I recently got an RTX 4090 and I'm looking for a new PSU. Any recomendation?

Specs:

AsRock B550 PG Velocita
AMD 5950x
NH-D15s
CORSAIR Vengeance LPX 64GB (2 x 32GB) DDR4 3200
GIGABYTE Gaming GeForce RTX 4090

Juraj:
Choosing PSU is little bit of alchemy :- )

Short & Easy way: Any 1000W (or more), Gold-rated (or more, Platinum/Titanium, but this gets costly), and from reputable brand with good warranty (Seasonic, EVGA, Corsair, Super Flower, etc..).

In Depth: A bunch of fanatics keep compiling a Tier List of every PSU on market: https://cultists.network/140/psu-tier-list/

Why they do it, is because one brand, like Corsair for example, sources their PSUs from many different OEMs, so one model can be actually made by Seasonic, and other by CWT.
Each generation and revision can likewise be completely different, a difference of problematic due to tiny issue with spikes, noise/etc..
This list follows those changes.

If you would like the latest technology in ATX 3.0 like EPS12V connectors, then Corsair RMe Series RM1000e made their A-Tier list and looks to be very affordable 150 Euro/USD.

Basshunter:

--- Quote from: Juraj on 2023-05-30, 23:34:17 ---If you would like the latest technology in ATX 3.0 like EPS12V connectors, then Corsair RMe Series RM1000e made their A-Tier list and looks to be very affordable 150 Euro/USD.

--- End quote ---

Hey Juraj! Thanks for your reply.

Model on the Tier A list is "RMx SHIFT" (the one with connectors on the side) not RM1000e, no?

On the other hand, is there any benefit from getting more wattage like 1200? Under what circumstances should I consider it?

Juraj:
Those 1200-1600W were originally created for multi-GPU setups which have died in meantime (not even Quadro cards have NV-Links anymore, and multi-cards don't fit now when they're 3-Slot or even 4-Slot lol).

1200 vs 1000W is debatable, I personally like bigger because the PSU will usually run fanless when in less than 50perc. operation. It also provides even more protection for current spikes (when your GPU suddenly decides to eat 800W for fraction of second, etc..). Lastly it benefit overclockers who plan to run the CPU at 300W and GPU at 600W territory.

But 1000W will be fine. But don't even think about going less.

Juraj:

--- Quote from: Basshunter on 2023-05-31, 00:57:51 ---Model on the Tier A list is "RMx SHIFT" (the one with connectors on the side) not RM1000e, no?

--- End quote ---

Both options are listed in A-tier list. The main difference isn't the Shift imho but RMe vs RMx platform, with RMx having better capacitators and fan and should be slightly more expensive.
Yeah maybe that's the better option.

But you can always get non-ATX 3.0 older PSU which for same price would probably be Platinum instead of Gold. It's always debatable whether the newer thing is worth it. I have some Seasonic Platinum PSUs running to 10 years like new! I keep swapping them between PCs. So good PSU is solid investment, for me it's mostly about safety. I don't want my house to burn down :- ).

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