

Oh no, you got it backwards. The software is everything, and ollama is awful. It’s enshittifying: don’t touch it with a 10 foot pole.
Speeds are basically limited by CPU RAM bandwidth. Hence you want to be careful doubling up RAM, and doubling it up can the max speed (and hence cut your inference speed).
Anyway, start with this. Pick your size, based on how much free CPU RAM you want to spare:
https://huggingface.co/ubergarm/GLM-4.5-Air-GGUF
The “dense” parts will live on your 3080 while the “sparse” parts will run on your CPU. The backend you want is this, specifically the built-in llama-server:
https://github.com/ikawrakow/ik_llama.cpp/
Regular llama.cpp is fine too, but it’s quants just aren’t quite as optimal or fast.
It has two really good built-in web UIs: the “new” llama.cpp chat UI, and mikupad, which is like a “raw” notebook mode more aimed at creative writing. But you can use LM Studio if you want, or anything else; there are like a bazillion frontends out there.




And IMO… your 3080 is good for ML stuff. It’s very well supported. It’s kinda hard to upgrade, in fact, as realistically you’re either looking at a 4090 or a used 3090 for an upgrade that’s actually worth it.