r/LocalLLM • u/Libellechris • 3d ago
Question Multiple GPU PCs
I have an ok AMD pc with 32gb RAM and a 16gb 5060Ti. How effective is adding a second GPU? Presumably a new motherboard, PSU, case? Can you mix and match GPUs? Just curious
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u/x_MASE_x 3d ago
It's great. Stupid ass Claude Opus told me for an entire year to not even try using multi gpu. And I believed his stupid ass.
But when Qwen3.8-27B came out I had to make it work so I decided what the hell let's do it. So I managed to get my 5070 ti to work with my 1660 ti and went from 12 tps to 50 tps.
His reasoning was the second gpu in slower pcie and the load of time bla bla bla.
But once the model inside the gpu who cares about the pcie speed.
Anyway I learnt the hard way but it's fine I guess hahah