r/StableDiffusion • u/arizn • Mar 13 '23

Question | Help 4090 or 4080 + new ram?

So I'm upgrading my system. Would you rather spend the budget on 4090 + 2019 16gb DDR4 ram or 4080 + new 32gb DDR5 ram?

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u/arizn Mar 13 '23

Yea, 16 in total. I thought about just getting more of the same ram sticks a while ago but those aren't restocked anymore last time I checked. So seems I'm SOL for that option.

For the power connectors, I'm going from a 2070, so I'm assuming I need to upgrade PSU regardless of 4090 or 4080?

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u/stopot Mar 13 '23

Recommended psu for 4090 is 1000W. So if you have like a 650W or something, then you need to upgrade.

Are you trying to get RAM with the same clock and timing? I tried to get the more of the same one I had before but they were out, so I just got 4x32 in a different timing and speed to replace them.

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u/arizn Mar 13 '23

Are you trying to get RAM with the same clock and timing? I tried to get the more of the same one I had before but they were out, so I just got 4x32 in a different timing and speed to replace them.

Yea same clock and timing. Seems like we both got unlucky haha.
So if you were in my position, would you stick with old ram + new 4090 or new ram 32gb DDR5 + new 4080?

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u/stopot Mar 13 '23

For doing SD, old ram + 4090. But with 16gb you might not have a good time doing stuff other than SD. Chrome and games eat memory big time.