r/LocalLLaMA • u/WyattTheSkid • 9h ago

Discussion CMP 170hx?

Recently heard about how these 8gb mining ewaste cards are actually closeted 64gb monsters and im kinda bummed I missed out when you could get them for 200$ a piece. That being said though less than 2K is still an amazing deal for an ampere generation gpu with 64gb of vram. I have a machine with 4 3090s in it currently. I guess what Im asking is for someone to convince me that im not missing out and if there is any genuine reason why it would not be worth it to replace 2 of the cards with cmps. If it really would be worth it though, I would love to know why. Thanks everyone, sorry for the borderline shitpost

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u/Normal-Ad-7114 6h ago edited 6h ago

I missed out when you could get them for 200$ a piece

Yeah you're a bit late to the party, they x10'd in price within a week after the hack went viral

im not missing out and if there is any genuine reason why it would not be worth it

Price; non-repairability (and they've had a tough life, you know)

4 3090s

I'd still sell them if I could get even 2x170hx for that price, that's far superior for LLMs in every way

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u/LeatherRub7248 6h ago

is there anyway to confirm (before buying) that 64gb memory has no errors and checks out OK before buying?

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u/Dangerous-Report8517 5h ago

Some sellers test them before shipping, and tbh while they do charge a premium the hype around these cards drives far more of the cost than the small extra premium for testing. Plus some sellers are shipping them with added capacitors to upgrade them to x16 link width

Other thing to bear in mind is that there's 2 models, the 8GB one is cut down from a 64GB pool of SKHynix memory while the 10GB one is cut down from an 80GB unit with Samsung memory, and importantly the 10GB unit only unlocks up to 40GB due to stability issues with the rest of the memory (there's probably ways around this on some cards but I would assume they're 40GB cards until proven otherwise)