Is DDR5 worth the extra cost for a new gaming PC?

I’d choose DDR5 unless the extra $300 would force you to downgrade something more important, like the graphics card. A DDR4 build can still perform well, but it puts you on an older platform with fewer meaningful CPU upgrades available later. The current sweet spot is generally 32GB of reasonably fast DDR5, rather than paying a huge premium for extreme memory speeds.

Before comparing the two lists, make sure both systems actually include a graphics card. Some of the processors commonly used in these builds either have no useful integrated graphics or only basic onboard video, so they won’t be suitable for gaming without a dedicated GPU. If you don’t plan to buy a graphics card, you’ll need a processor with a stronger integrated GPU, but that’s generally not the best route for a gaming-focused desktop.

If you aren’t in a hurry, waiting for the next processor generation could be worth considering, but I wouldn’t delay solely because of DDR4 versus DDR5. For a new system today, I’d normally go with the newer DDR5 platform, while making sure the total budget still leaves enough for a capable graphics card. Also compare the CPU options carefully—one of the gaming-focused 3D-cache processors may offer better gaming performance for a relatively small increase in cost.

For gaming, the real-world difference may be fairly small, especially if you’re playing at higher resolutions where the graphics card is the limiting factor. However, if you’re buying a new AMD system, I’d lean toward AM5 and DDR5 because it gives you a much better upgrade path for future processors and memory. I’d also double-check the SSD choice and consider a model with a DRAM cache if the price difference is reasonable.