GrandDemand t1_jd9w0n4 wrote on March 22, 2023 at 9:39 PM

Reply to comment by Numerous_Talk7940 in How noticeable is the difference training a model 4080 vs 4090 by Numerous_Talk7940

Yes that's likely better actually since its a much newer card (less likely to have been mined on) just make sure you look into tuning it for efficiency as the card is designed to run at 450W (which is insane). I can't direct you to any guides for the 3090Ti specifically but I'd just google 3090Ti undervolt. The 3090 should probably also be undervolted too, you really don't need these cards to be hitting their power limits of 450W and 350W respectively, tuning them to a more reasonable 325-350W and 280-300W makes way more sense.

GrandDemand t1_jd9w67s wrote on March 22, 2023 at 9:40 PM

Although since you are in Europe, what does pricing look like roughly for used 3090s/3090Tis versus new 4090s?

Numerous_Talk7940 OP t1_jdb6dt1 wrote on March 23, 2023 at 3:15 AM

3090 900-1000, 3090ti 1200-1300 4090 new 1750, which is why I considered still a new 4090, because the price gaps between those 3 Options seem odd.

GrandDemand t1_jdbi5kd wrote on March 23, 2023 at 5:07 AM

I'd say in that case just go new 4090 unless you can get a used 3090 for half that or a used 3090Ti for a little over half. I'm surprised that the difference is that small, I guess I'm accustomed to the used market in the US which I imagine is quite a bit larger

Numerous_Talk7940 OP t1_jdbifz9 wrote on March 23, 2023 at 5:10 AM

I see, thanks for your help! The 4090 is from palit though while the used 3090/3090ti are from MSI or Gigabyte, which are more expensive in general. For my use case however, the brand should not matter. Does the advice for undervolting still hold for the 4090?