Re:April 2026 TLDR Setup for Ollama and Gemma 4 26B on a Mac...
by zozbot234 on Friday April 03, 2026 @10:37AM
(#47627144)
You don't need that much VRAM to run the very largest models, these are MoE models where only a small fraction is being computed with at any given time. If you plan to run with multiple GPUs and have enough PCIe lanes (such as with a proper HEDT platform) CPU-GPU transfers start to become a bit less painful. More importantly, streaming weights from disk becomes feasible, which lets you save on expensive RAM. The big labs only avoid this because it costs power at scale compared to keeping weights in DRAM, but that aside it's quite sound.
Re:April 2026 TLDR Setup for Ollama and Gemma 4 26B on a Mac...
by lambda on Friday April 03, 2026 @12:44PM
(#47628965)
While you can run with weights in RAM or even disk, it gets a lot slower; even though on any given token a fraction of the weights are used, that can change with each token, so there is a lot of traffic to transfer weights to the GPU, which is a lot slower than if it's directly in GPU RAM. And even more slower if you stream from disk. Possible, yes, and maybe OK for some purposes, but you might find it painfully slow.
You can get open models that are competitive with Sonnet 4.6 on benchmarks (though some people say that they focus a bit too heavily on benchmarks, so maybe slightly weaker on real-world tasks than the benchmarks indicate), but you need >500 GiB of VRAM to run even pretty aggressive quantizations (4 bits or less), and to run them at any reasonable speed they need to be on multi-GPU setups rather than the now discontinued Mac Studio 512 GiB.
The big advantage is that you have full control, and you're not paying a $200/month subscription and still being throttled on tokens, you are guaranteed that your data is not being used to train models, and you're not financially supporting an industry that many people find questionable. Also, if you want to, you can use "abliterated" versions which strip away the censoring that labs do to cause their models to refuse to answer certain questions, or you can use fine-tunes that adapt it for various other purposes, like improving certain coding abilities, making it better for roleplay, etc.