RTX 3090 vs RTX 4090 for local LLMs
Both run the same 48 of 69 models well. On models that fit both, the RTX 4090 should be about 8% faster, because generation speed follows memory bandwidth (1008 vs 936 GB/s).
NVIDIA RTX 3090
- 24 GB VRAM
- 936 GB/s bandwidth
- 48/69 models run well
- $1,499 at launch
NVIDIA RTX 4090
- 24 GB VRAM
- 1008 GB/s bandwidth
- 48/69 models run well
- $1,599 at launch
Prices are US launch prices (MSRP) for comparison; street prices change daily. Links go to Amazon, where we earn a commission at no cost to you.
Every model, side by side
Best quant that fits and estimated speed at 8K context.
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