Others new graphics card

[VeritasLex]

Hello,
Sorry if my english is bad, I use a translator.

I am thinking of getting a new graphics card. Currently have the 3080 Ti.
I am considering between the 3090 Ti and 4080.
My problem is which one is really better in terms of performance. I read that the 4080 is better from the performance. But it only has 16Gb, the 3090 Ti has 24gb. Does it make the 4080 worse again? By the way I work with Daz, so I render a lot.
And I have an 850w PSU in it, would that be enough for both?
And would both still fit in the case in terms of size? (Captiva Gaming HG101 RGB TG with window).
Maybe someone could help me decide.

 

[Rell games]

More VRAM = the more complex scene your card can handle, and also you can render them at 4k if you need to. It is pretty painful if you don't have enough of it, but it does not affect render speed if your scene fits into a smaller amount of VRAM. For example, If your project requires you to have a lot of characters in one render, go with a more VRAM option.

 

[GNVE]

I personally would always take VRAM over raw power for rendering. But I generally like to render large scenes and render overnight so I am not time limited. If you are time limited (so you are waiting around for renders) then you might want more power in stead.
I don't know if and how much faster the 4080 is over the 3090 though so check out some reviews for that.
I currently have an 800W PSU with a 3090 so it is possible. Though I suggest you use

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. That site allows you to choose all parts of your PC to make sure there are no incompatibilities and the PSU has enough power.

 

[rayminator]

I would do what GNVE have said and there are a lot of bad reviews on the 40 series and some good reviews as well that's if you get one that does burn the power cable or not

just a estimate only every card is different
here what wattage is recommended for a PSU for a 4080
MSI Gaming (MSI) GeForce RTX 4080 16GB
Thermal Design Power 320W
Recommended PSU Wattage 850W

850W doesn't mean the card will go to wattage it mean that it's recommended that you have psu 850W and up

here what wattage is recommended for a PSU for a 3090ti
ASUS TUF Gaming NVIDIA GeForce RTX 3090 Ti OC Edition
Thermal Design Power 450W
Recommended PSU Wattage 1000W

you can bind the two cards if you have the right psu and the right bios that allows it in your motherboard

that's if you plan to use both card I would recommend a 1200W to 1500W

 

[anne O'nymous]

Recommended PSU Wattage 850W
[...]
Recommended PSU Wattage 1000W

Are you sure about those numbers ? Even if it's compare to a 3090, I find it strange that the 4080 need less power. That the new core design permit the chip to heat less, I can perfectly understand it. But that it also permit such computation rise with in the same time less power need, I have more difficulties with this.
What could explain the issue that some have with the burned cables & power supply units.

 

[rayminator]

Are you sure about those numbers ? Even if it's compare to a 3090, I find it strange that the 4080 need less power. That the new core design permit the chip to heat less, I can perfectly understand it. But that it also permit such computation rise with in the same time less power need, I have more difficulties with this.
What could explain the issue that some have with the burned cables & power supply units.

I'm only stating what newegg say

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and I also said just a estimate only every card is different

 

[anne O'nymous]

I'm only stating what newegg say

It wasn't a criticism against you. I just find it really surprising and unlikely that the 4080 need less power than a 3090.
I know that it's also

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, but it don't buy it. I mean, they communicate on the measured consumption, but (unless I missed it did a quick read) never tell what was the GPU load. And I really doubt that when they did the measure, there were games really pushing the GPU to its max. Yet, pushing the GPU to its max is what any 3D rendering software would do. What especially apply for Daz Studio that is still far to use all the series 40 capabilities, and therefore would load the GPU more than needed.
When the series 40 was announced, I remember that hardware specialists who tested the pre-series cards were speculating on 1000 Watts (at computer level, not just the GPU) minimal for a 4070, and up to 1500 Watts for a 4090. I found this more realist.
Personally it's what I would choose as Power Supply Unit. It cost more, but it's the price for the peace of mind. If the card need less, you'll not use the PSU at 100%, what is less a problem than having it at 100% for long periods, each time Daz Studio is batch rendering.

 

[JakaiD]

You can always have a look at Blender benchmarks to get a rough idea since you are not interrested in gaming/FPS scores.

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As for power draw, no need to guess. Channels like Linus' and other test for that info and if one card draw this much and another that much in the exact same game then you have valid numbers to compare the two cards against whether they would draw more in iRay or not.

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