The Intel Core Ultra 9 285K is a powerful processor with 24 cores and support for DDR5-6400 memory, though you can push higher with the right system setup. You must install rapid system memory to get the most from this Arrow Lake CPU. Thankfully, with the power of XMP, you can purchase most DDR5 RAM kits available today and have an excellent experience with this processor. Like AMD chips, the faster your modules and the lower the latency, the better the overall system will perform. The sweet spot seems to be in the 7000s to 8000MT/s for Intel Core Ultra CPUs and the 285K will be no exception.