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Chia-Network / drplotter

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How to calculate best mix of Eco and Pro plots #29

Open darkenbula opened 8 months ago

darkenbula commented 8 months ago

Hi DrNick

Is there a way to calculate this best mix of pro and eco plots?

For example i have approx 250TiB for an effective 401TiB with madmax @ C17

How would i calculate the best mix of these to effectively use either a 3090 or 4090 so i can decide if purchasing a GPU is worth it for me

drnick23 commented 8 months ago

(Pro4x TiB)+(Eco3x Tib)=250 (your capacity) (Pro4x Tib)/200 + (Eco3x Tib)/450 = 1 (1 4090 gpu @ 256 filter)

Now you can solve like you would for: x + y = 250 x/200 + y/450 = 1 where x is Pro4x and y is Eco3x

You'll get 160 Pro4x and 90 Eco3x.

160 Pro4x = 80% gpu utilization, with 657TiB effective 90 Eco3x = 20% gpu utilization, with 270TiB effective

So you would total 927TiB effective, which is 526 more eTib than C17 at the cost of a 4090, with approx 330W more power usage (although you need to subtract the gpu usage on C17 from this assuming it's not 0, let's say it's 30W).

In summary: C17 = 401 eTib Eco3x + Pro4x = 927 eTib + cost 4090 + ~300W

(edited to fix typo on formulas)