DDR4 have similar latency as DDR5 and that's what matters in all games, while raw bandwidth only matters in some games
replyAnd raw bandwidth is a function of how many channels you've got as well. So a threadripper with 8 channels of DDR4 will run just fine even on heavy workloads.
replyMost games do not, unless you want the best graphics. But then you’re out of the 90% use cases
replyApparently mainly CPU (rather than GPU) limited games tend to benefit from DDR5: https://www.techspot.com/review/3059-ddr5-vs-ddr4-gaming/
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