this post was submitted on 25 Jul 2024
655 points (100.0% liked)

196

16449 readers
2171 users here now

Be sure to follow the rule before you head out.

Rule: You must post before you leave.

^other^ ^rules^

founded 1 year ago
MODERATORS
 
you are viewing a single comment's thread
view the rest of the comments
[โ€“] Ibaudia@lemmy.world 7 points 3 months ago (1 children)

That must be a crazy model. I ran one of their models on my 1660 and it worked just fine.

[โ€“] AdrianTheFrog@lemmy.world 5 points 3 months ago

I don't have access to llama 3.1 405b but I can see that llama 3 70b takes up ~145 gb, so 405b would probably take 840 gigabytes, just to download the uncompressed fp16 (16 bits / weight) model. With 8 bit quantization it would probably take closer to 420 gb, and with 4 bit it would probably take closer to 210 gb. 4 bit quantization is really going to start harming the model outputs, and its still probably not going to fit in your RAM, let alone VRAM.

So yes, it is a crazy model. You'd probably need at least 3 or 4 a100s to have a good experience with it.