With all the different open-weight models appearing, is there some way of figuring out what model would work with sensible speed (> X tok/s) on a standard desktop GPU ? I.e. I have Quadro RTX 4000 with 8G vram and seeing all the models https://ollama.com/search here with all the different sizes, I am absolutely at loss which models with which sizes would be fast enough. I.e. there is no point of me downloading the la…
There are a lot of variables here such as your hardware's memory bandwidth, speed at which at processes tensors etc. A basic thing to remember: Any given dense model would require X GB of memory at 8-bit quantization, where X is the number of params (of course I am simplifying a little by not counting context size). Quantization is just 'precision' of the model, 8-bit generally works really well. Generally speaking,…
I know this is crazy to here because the big iron folks still debate 16 vs 32 and 8 vs 16 is near verboten in public conversation.
I contribute to llama.cpp and have seen many many efforts to measure evaluation perf of various quants, and no matter which way it was sliced (ranging from subjective volunteers doing A/B voting on responses over months, to objective object perplexity loss) Q4 is indistinguishable from the original.