[tempest_]

DDR4 is also crazy expensive right now so this just depends on you having some around from a previous build

[zozbot234]

It actually seems to be slightly less expensive than DDR5, perhaps due to the lower throughput that makes it uncompetitive for AI-adjacent workloads.

[deltoidmaximus]

If you're willing to check the used market it is more affordable as the spike isn't as severe as used DDR5.