言ってるそばからmadmaxがやりやがった。discordで発表されたけど40%報酬増のGPU圧縮プロット。
見れない人のためにコピペしとく

Compressed CPU / GPU plotting and farming is now supported on MMX: https://github.com/madMAx43v3r/mmx-binaries
With the highest sensible compression level you will get 40% more rewards, however it requires a GPU for farming (like a GTX 1650 at least).
You need to run the binary harvester or full node from mmx-binaries/mmx-node/ to farm the new plots (it also supports regular plots).
The chart for k32 shows all the different compression levels and how big of a farm is supported via a single RTX 3060 for farming.
For small farms (< 1 PB) with GPU farmer C8 is recommended, for larger farms C7, for CPU farming C6, for low power systems like rPI C3 is recommended. C9 only makes sense if you have cheap / free power.
The GPU plotter runs well on Turing (GTX 1600 / RTX 2000) cards and newer.
The GPU farmer supports Maxwell and newer, however the performance on Maxwell and Pascal is unknown.
AMD and Windows support is coming in the future, for now Nvidia and Linux only.
Note: Regular plots will always be supported, it is not required to replot.