4 Things to Know About DDR5 and Your Power Supply
DDR5 does not require a new power supply The power draw difference between DDR4 and DDR5 is only 5–10 watts per stick, which your existing PSU handles without issue.
The motherboard handles voltage conversion Your PSU does not directly power the RAM. The motherboard’s voltage regulator module (VRM) converts the voltage, so the slightly different 1.1V spec for DDR5 is irrelevant to your power supply.
The real cost is the motherboard and CPU The extra expense of DDR5 comes from needing a compatible motherboard and CPU, not from a bigger power supply.
Upgrade your PSU only if it’s already struggling If your current PSU is old, underpowered for your GPU, or near its limit, consider an upgrade. But DDR5 alone won’t push it over the edge.