RTX 4090 VS RX 7900 XTX

[Gilles_Charbonne]

Hello everyone!

I am looking into UE 5.1 to create an animated film, and I was wondering if the AMD RX 7900 XTX was good enough or if I needed to go for the RTX 4090 instead, there doesn’t seem to be a huge difference in performance from what I have seen, but still, I wanted to know if there was a reason I should go NVIDIA instead of AMD!

Thanks in advance for any replies!

Gilles

[Ivan3z]

Hardware and Software Specifications

When will Vulkan be good?

I really don’t know he never explained. I’m more into the politics of reliable, working systems. The opensource amd driver probably has comparable performance to the nouveau driver and we all know nouveau isn’t exactely great. Ofcourse his attitude has influenced a lot of people causing bias in their view of performance and usability. I’m curious to see the hype train when the new amd cards come out. Perhaps followed by a slew of complaints here because of dreadful performance in unreal.

I would go for NVIDIA
and put the version 5.0.3

[Gilles_Charbonne]

Thanks for the reply!

I also thought about NVIDIA at first, but the 4090 is twice the price of the 7900 here in Canada, so I was wondering if there were any technicalities that made NVIDIA better than AMD to create a cinematic in Unreal, since the difference in performance is 5-10% ?

My current specs

AMD Ryzen 9 5950x 16 cores CPU
128 GB of DDR4 3200 ram
RTX 3060 12GB
1TB ultra fast SSD m.2 for C drive
4TB ultra fast SSD m.2 for data drive

Gilles

[Ivan3z]

There are games that perform better with Nvidia and others that perform better with AMD. From what I have read in this forum nvidia works better with Unreal.

I don’t know too much about animation. But I think your current specs are pretty good. If and I’m in your place, I wouldn’t change anything. For 5 or 10% performance it is not worth changing the hardware. It will only take 5 or 10% more to render.

Cheers!!

[Gilles_Charbonne]

Again, thanks for the reply!

The 5-10% is between the NVIDIA RTX 4090 and the AMD 7900 XTX, the RTX 3060 from my current specs doesn’t come near any of these cards in terms of performance!

Maybe a better question would be, is it worth paying double the price for an NVIDIA RTX 4090 video card, when the NVIDIA RTX 4090 is only 5-10% faster than an AMD 7900 XTX card in most games?

Gilles

[Ivan3z]

I do not think so. Nvidia has expectations too high with its 4000 series. Nvidia believes that there are thousands of cryptominers willing to pay a dresorvite price for cards that are not worth that price. Most people play at 1080p. The best selling card in the GTX 1060 in recent years. So I think it’s not worth it. The 4000 series is overrated by Nvidia. And there are also many complaints about it. Apparently the cables burn and some other things. You can see this in some reviews on YouTube. So I think your hardware is more than enough and you shouldn’t change it. You can use it for many more years.

Cheers!!

[Gilles_Charbonne]

Thanks again for your reply Ivan3z, but again, I am not building a gaming PC, I am building a workstation to produce animated films using the Unreal Engine, my current video card only has 12GB of VRAM, clearly it is not enough since I already cap it on some tests I made, so I am looking to buy a 24GB VRAM video card, the two choices are the NVIDIA RTX 4090, or the AMD 7900 XTX, but the RTX is twice the price, so I am asking if there is a technical reason I should buy the RTX 4090 instead of the 7900 XTX!

[Ivan3z]

I think the VRAM is important… but even more important are the CUDA cores… The 4000 series is too expensive for what it offers… I wouldn’t buy it by any means… but AMD doesn’t perform well on Unreal according to the comments I have read… Maybe you can get a second hand Nvidia QUADRO at a good price… I think it is the best type of card that best suits what you want to do with it… They are extremely expensive… but they are expressly designed for production… they are not good for gaming.

So you really should ask someone who is already using those cards with Unreal before making that investment. I don’t have it so I can’t say. Be patient, someone will probably read this and can give you more details about it.

Cheers!!

[anon3589488]

I have systems with amd 6800 and amd 6900 and I am not facing any issue on those with Unreal 5 on windows and linux. Had been using those for almost one year. Atleast amd 6xxx series is working without any issues on windows and linux. Definitely go for gpu with more vram.

But don’t use amd gpu with unreal versions below 5. When UE 4.27 is opened on windows with amd 6xxx you get serious lines as though gpu is about to fail.

[kareembadie]

Hello Giles, Did you get a final solution for this? because I’m stuck in this now, I don’t know if the Nvidia Card options are more important than the higher VRAM offered by AMD in cinematics and render