Is DDR5-6000 CL36 good enough for a Ryzen 7 9800X3D build?

For video editing, memory capacity and overall system balance matter more than shaving a few nanoseconds off RAM latency. If the choice is between 64GB CL36 and a much more expensive lower-latency kit, the cheaper kit is the better value. You could also try tightening the timings later, but it’s best to treat that as optional tweaking rather than a guarantee.

People who have used CL30, CL36, CL38, and CL40 often report that they can’t feel a difference outside of benchmarks. Make sure the kit is stable, runs at DDR5-6000, and has a reasonable capacity; those factors are more important for this build than the CL number alone.

For the 9800X3D, CL30 versus CL36 is usually a very small difference—often around 0–2% in gaming, and much harder to notice in normal use. The large 3D V-Cache makes memory latency less important than it is on a regular Ryzen processor, so I wouldn’t spend a huge premium for CL30 or CL28. DDR5-6000 CL36 is perfectly reasonable if it saves substantial money.

Try to get a kit with AMD EXPO if the prices are similar. EXPO is simply a memory profile tuned for Ryzen systems, while XMP is Intel’s equivalent. XMP kits can still work on AMD, but EXPO generally makes setup more straightforward. Either way, remember to enable the profile in the BIOS; otherwise the RAM may run at the slower default speed.

The motherboard looks suitable and isn’t inherently a problem, but check whether you actually need its extra features. A less expensive B850 board with adequate VRM cooling, the required M.2 slots, Wi-Fi, USB connectivity, and BIOS support would perform similarly. The 9800X3D doesn’t require an exceptionally expensive motherboard for gaming performance.