Corsair or EVGA!
Corsair or EVGA!
Among those three shortlisted PSUs, I'd pick the EVGA Supernova 1000w P3 platinum for keeping the PSU, though if you're concerned about cost, the Corsair RM850x would be a close alternative to consider.
RMx>RM(e)
Don't know much about that specific EVGA product. Based on my experience, the Antec NEO Eco is a budget model, but I haven't encountered or tested any units from that category. I wasn't familiar with this naming system for those outputs. However, I've used similar branding in some office setups without issues.
Contrary to popular belief, EVGA doesn't manufacture its own PSUs. That particular line (P2/T2/G3) from EVGA is based on SuperFlowers Leadex platform. For single-rail PSUs, there's nothing better on the market.
edit: I hadn't had my morning coffee yet, so I misread that as G3, not P3. It's a different OEM to Superflower. In light of this information, you should proceed with caution. EVGA chose a lower-cost alternative for this lineup to cut costs on tariffs.
You're better off going with Corsair, unless you can find a P2/T2/G3 somewhere.
EVGA's newest power supplies fall short compared to their previous generations, regrettably. It's a shame that T2, P2, and G3 models are almost nonexistent anymore.