Before its release, some of the initial images of G.Skill Memory's Trident Z5 CK series DDR5 CUDIMMs were leaked online. The "CK" designation is used for CUDIMMs, which are DDR5 DIMMs featuring a client clock-driver (CKD) element. The CKD serves as a filter for the memory physical-layer digital waveform, enhancing memory performance at high clock speeds. This allows for DDR5 speeds exceeding 8000 MT/s, although CUDIMMs are also available at lower speeds such as 6400 MT/s. Intel views DDR5-8000 as the optimal memory speed for its Core Ultra "Arrow Lake-S" desktop processors, indicating that achieving 8000 MT/s should be feasible in Gear 2 mode, with future memory kits potentially reaching speeds exceeding 10000 MT/s with Gear 4.
