Which one is more important for 3d workflow, VRAM or CUDA?
I have also shortlisted 3 GPUs according to my budget,
PNY GeForce RTX 4060 Ti 8GB VERTO Dual Fan GDDR6
ASUS TUF Gaming GeForce RTX 3060 V2 OC 12GB GDDR6
Intel Arc A770
It would be great if you could suggest me which one should I go for .
go with 4060ti, if possible 4070
It depends on what tho- I’d gladly wait twice the time for a render if the scene is large and requires more Vram. If it’s speed you’re looking for, the 8GB option is alright. It’s a fine balance.
If you’re going to make large projects with loads of shaders and textures- 12GB model.
If you want twice the speed- 4060ti.
8GB is fine for a hobbiest 
Also, don’t throw in 8K textures on every asset- always optimize. even if you have a RTX4090
Hi, for render performance in Cycles the GTX 4060Ti is the fastest for sure.
For view port performance Blender doesn´t really profit from a faster GPU, it depends on your workflow.
Scenes with hundreds of objects and millions of polys will slowdown Blender viewport performance. Same for sculpting, animation and so forth.
Which GPU do you have at moment?
Cheers, mib
What are you talking about? 
How is viewport rendered then? EEVEE uses GPU. Of course Blender’s viewport performance benefits from a faster GPU.
CUDA or OptiX in the case of Nvidia RTX cards really only matters for Cycles rendering. Outside of that for general 3D modelling/texturing, etc it has much less of an impact for any semi-modern GPU.
That of course assumes that said GPU is fully supported and has stable drivers and all that.
As for VRAM, as long as you have an OK base amount for your display resolution, etc (so like 4GB) and again on most of the 3D workflow it will make no difference.
However, when it comes to GPU Cycles rendering then VRAM totally matters. At least it matters once you run out of it. If everything you want to Cycles render fits in 8GB VRAM, then getting a card with 12GB VRAM will make zero difference (assuming the only difference between the two GPU’s is the amount of VRAM).
However, as soon as you go over the 8GB VRAM, then rendering will be way way way slower (even if the actual GPU itself is much faster then the other card with 12GB).
Yes it does, but it depends on what you are doing and how much processing is actually required of the CPU, as to if a GPU will make any difference.
I tested this in my video:
Hi. Thanks for your reply. I am currently using GTX 1660 Super
Of course, but it’s very easy for a scene to start lagging on a weaker GPU if you have a lot of complex shaders in the scene in Material Preview shading mode. This is quite a common use case so one should not state nonsense like that GPU doesn’t matter for the view-port performance. It does. That was misleading.
This is no nonsense, the OP use a fast card already, a GTX 1660 Super is not week.
Why do you think a GTX 4060Ti make sculpting or huge meshes any faster in Blender. It may do loading shader faster, what I mention, it depends on the user workflow.
@souminshahrid, I would keep the 1660Ti, use it for the viewport and use the new card for render. This speed up your viewport enormous if you use cycles as preview in Blender.
Cheers, mib
Edit:Typo
I don’t think about sculpting huge meshes. The OP did not specify his workflows.
For view port performance Blender doesn´t really profit from a faster GPU, it depends on your workflow.
This statement is incorrect and misleading. Blender’s viewport performance does in fact profit from a faster GPU generally. It depends on the workflow if that is the case for the specific workflow. Without knowing what the OP does it makes no sense to give advice like that.
He should confirm that his power supply is up to the task of running two GPUs or that is another cost he needs to consider.
One thing that has not been mentioned is that VRAM matters for texture painting (at least in substance it does)
How about 4060 Ti 16 GB? Should “only” be 100 more than the 8 gig version. I would say 8 GB is quite a small buffer considering the speed of the card. It will soon become the limiting factor and will render the card obsolete.
RTX 3060 is a fairly well balanced card in terms of speed, memory and power consumption. It should have decent longevity, probably outlasting the 4060 Ti 8 GB.
Intel, would just avoid that. It’s a first gen product that is only starting to gain adoption. Chances are, some software or some feature set will lack support for it.
Hi again, can you tell us what you are do or want to do in Blender, please?
This would make it easier to help with own experience about GPU in Blender.
Cheers, mib
Technically, it should be 50-100 less and the 8GB version shouldn’t even exists, but that’s another matter.
That’s very true.
I am a professional photographer and a beginner blender user right now. I have started taking Blender lessons with a view to create photorealistic scenes with lots of objects and details in Blender.
Most importantly, I was born in a beautiful city in Bangladesh where there were beautiful houses, streets and landscapes. And now it is becoming a concrete jungle and you hardly see the sky. There were lots of stories at every corner. I want to tell those stories. It will be expensive if I design production and arrange it. Hence, Blender comes into play.
I want all of your support and inspiration to reincarnate my beloved birthplace at least virtually if possible.
Hi Souminshahrid,
With complex scenes or landscapes, then the more VRAM you have the better. There is nothing slower than when one runs out of VRAM.
Good luck finding a good deal on a GPU. It sucks that GPU prices are still high. But I hear that the RTX 4060 16GB are dropping in price so maybe check if this is also happening in your part of the world.
Also, good luck to you on your vision quest. Living in one of the most densely populated countries in the world I’m sure you’ll have many stories to tell!
Cheers,
Paul