The oldest GPU can handle Godot 4/Vulkan?

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The oldest GPU can handle Godot 4/Vulkan?

RaynerHandrian

Just wondering and curious about this kind of topic because it would affect some of my projects in future, it seems Godot 4 would prefer to focus more on Vulkan. I found it fine by me because Vulkan has better performance and feature benefits with newer hardware. However, I still would like to support older hardware, so it would be great to know about your guy's experience testing Godot 4 or various hardware.

Mainly for the user who has GTX700 series or HD7000 because it is the earliest GPU I know that has Vulkan support "I would love to hear you get more earliest GPU that could work for all Godot 4 features", For now, I only have a Laptop with AMD APU with Vega 8 and PC with RTX2060, so both too newer for be a test rig, I might buy GTX750 for test rig.

TwistedTwigleg

I know Godot 4.0 with Vulkan worked on a Nvidia 660 TI, as that is what I used when I worked on Godot 4.0 roughly 2 years ago. Not sure on the support for advance features though…

JusTiCe8

I have an Asus ROG G750 JH with a GTX 780M so I can do some testing if you want.

For now, I didn't notice any issue but I didn't tried advanced 3D stuff. If you have anything I can test or link to some projects, I can give it a try.

davek

I have a number of machines that all run slow, my NVIDIA GeForce GTX 960 isn't that new but even the simplest 2D runs it's so slow it's insane. I can run Valheim on it no sweat but a little 2D game is molasses? Something isn't right... could be me I guess but on EVERY machine?

IMO I don't see how you can use Forward+ mode unless you are specifically making a very high-end 3D game, otherwise you are going to be flooded with users complaining it's too slow

MagickPanda

davek hmmm vulkan performance is that low in godot 4?
I might as well change my game's main render setting from vulkan/forward+ to opengl if it's a common problem on even newer hardwares. -.-

JusTiCe8

Just for testing, I tried official demo MaterialTesters importing project was very long and there are some slow down while moving the camera.

I'll try some other demos.

Megalomaniak

MagickPanda They didn't mention their project settings config. It could be that they experienced relatively bad performance at default settings. It might be better if things were turned down a bit perhaps. It's something to experiment with.

MagickPanda

Megalomaniak Thanks. It would be great if there is performance setting tuning guide for 4.0 new rendering features such as global illumination.
Currently it's hard to tell which option or option-combo has the most impact on performance on older hardwares.

cybereality

You can search for GPUs and the Vulkan spec support here: https://vulkan.gpuinfo.org/

Megalomaniak

cybereality Thanks, I used to have gpuinfo.org bookmarked but forgot what it's URL was after the last format. A very useful resource.

JusTiCe8

MagickPanda It would be great to ave a demo scene using all cutting-edge feature of Godot engine with lot's of options to control which one to use or not, do you know one ?

There is this one from the last update post by Rémi Verschelde, which is looks like just a show off unfortunately (just videos and tweets).

MagickPanda

JusTiCe8 Thanks. I will have a look at video to see which feature(s) impacts the performance most.

Saul

Did you used sdfgi? If so that the main reason, sdfgi is known to drop a lot the framerate when movimg as it updates the cascades by a lot. It might get fixed for 4.1, but not sure. For me without it i can run a simple project just fine on my IGPU that has no name and it driver is just an amd radeon vega 3