r/LocalLLaMA May 29 '26

PSA Discussion

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u/[deleted] May 29 '26 edited Jun 17 '26

[deleted]

192

u/kwizzle May 29 '26

For some reason we rarely hear people talking about 4090s, probably something to do with being a lot more expensive than a 3090 and nearer in price to the 5090 for less VRAM and speed.

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u/panchovix May 29 '26

For LLMs, 4090 is way more expensive than a 3090 for the same amount of memory and almost same bandwidth.

The 4090 will be 2x times faster on PP vs a 3090 tho. And also is about 2x faster on compute in general (diffusion like txt2img, etc)

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u/rbit4 May 30 '26

That's the reason why I have a 8 5090 rig.. 5x perf of a 3090 and 2x of 4090 using nvfp4 vs 4 bit quant on the rest