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In August AMD launched EPYC Rome based on their Zen 2 technology and chiplet design.
This has taken the Supercomputer and HPC world by storm due the efficiency and performance of the processors.
The 64 core processors can get over 2 Tflops of performance alone.
My proposal here is that rather than just the community provide their free computing performance to make PrimeGrid work, users could donate a small amount of money to build and maintain essentially a supercomputer grid. This would be great for people who want to help but can't directly volunteer their machines and would rather donate directly.
I worked out that if everyone who uses PrimeGrid donates just $15 this year or $1.25 per month, then we could effectively double the throughput of PrimeGrid from 2 Pflops to 4 Pflops. Task which have previously years to complete could take a year or less.
The EPYC processors I would think are the most appropriate for the task
EPYC 7402P 24C/48T 2.8/3.35Ghz L2:24x512KiB L3:128MiB 180W $1250
EPYC 7502P 32C/64T 2.5/3.35Ghz L2:32x512KiB L3:128MiB 180W $2300
EPYC 7702P 64C/128T 2.0/3.35Ghz L2:64x512KiB L3:256MiB 200W $4425
(Add around $700 for motherboard and RAM per system)
Just throwing the idea out there. | 
