A QUESTION FOR THE COMMUNITY: How much RAM does your vtube studio normally use?

[muted pendant]

My main model spends around 3gb, but I confess that it has many effects and physics, 4 different clothes in addition to having a 3d aspect as well.

I've been trying to learn ways to minimize this and I believe that the secret is in the way the layers are made, since I must be putting some extra layers that could very well be merged to save space both in the texture file and in RAM.

I also always had a curiosity: even if normally my model uses around 2.5gb to 3, on some occasions I notice that it is using 300mb in total and I have no idea what causes this. And the model acts completely normal in these situations.

[dark wind]

So this is misleading. Simply looking at the task manager will not tell you the GPU memory being used, which is more important for using the model.

So Vtube Studio, to load my model is about 900MB

on the GPU

But 440MB system memory

Where people get into trouble is when they have multiple textures, because each texture has to remain resident. So a 4K texture is 67,108,864 in bytes. The unity engine itself with the model unloaded is about 700MB on the GPU. So for my model, unloading it and reloading it will just bounce the GPU memory by around 256MB.

So as far as it matters. If someone has a high end GPU (eg A RTX 3080, 3090, 4080, 4090) and they are playing a game that minmaxes the GPU pretty hard, then a smaller model matters.

On the flip side, if someone is using a RTX 1060, 2060, 3060, 4060, or something like that that might have between 6 and 12GB of VRAM, a bigger model will impose more overhead if the game tries to push the vtuber model out of the GPU. We've seen this before, and pretty much the VRAM amount matters the most for if you can use the Vtuber model with any specific game.

Like when people say that the GPU spikes and their system tanks, it's pretty much either they didn't cap VTS to 60fps OR their model imposes a heavy load penalty that the game exhausts the video memory so the OS tries to save the situation.

If you're just Chatting, a model with 4 8K textures might be fine. If you're playing a game like RE4, Cyberpunk 2077, Hogwarts Legacy, or The Last of Us Part 1. These games impose >8GB VRAM loads, so you have to nerf the settings considerably to play these games with VTS loaded.

[muted pendant]

@dark wind
I actually got a pretty ok setup, 2070super, 32GB ram and etc so I never have any troubles with it. But I really appreciate the stuff you've said, specially for the 60fps cause I totally forgot about that on vtube studio so I'll make some tests to see if it will change the usage a little bit.

[dry ermine]

@muted pendant Usually when I test, VTS RAM sits at around 500-600 MB. When I load a very large model, it goes up to ~800.

It shouldn't really get much higher for most people. Only maybe during collabs.

For GPU memory, I'm getting ~700 MB too with a model loaded.

It should be relatively constant.