In raw CPU performance, I found the 5750GE was 90-92% of the CPU performance of a 5700X, but capped out at a total package power of just 39W. 5750GEs made for fantastic home server CPUs, so here’s hoping there’ll be an 8750GE later this year (plus some ASRock Rack mATX motherboards with ECC support and BMCs).
I agree the OEM only was a pain. I had to get my 5750GEs through mostly disassemblers/recyclers, though some boutique shops like QuietPC buy a half tray of them at a time to sell directly to end users, so keep on the lookout!