On Tuesday, G.Skill unveiled their new ultra-low-latency DDR5-6400 memory modules, boasting an impressive CAS latency of just 30 clocks. This sets a new benchmark in the industry for DDR5-6400 sticks and these modules are geared for use with both AMD and Intel processor systems.
In the evolution of DDR memory, each new generation boosts data transfer rates even as relative latencies grow. While for many applications, the increased bandwidth more than compensates for the higher timings, certain tasks still benefit greatly from reduced latencies. Yet, achieving lower latencies can be more challenging than simply boosting data transfer rates, making such low-latency modules a rarity in the market.
G.Skill seems to have overcome this challenge through a meticulous selection of DDR5 memory chips and crafting specialized printed circuit boards, resulting in DDR5-6400 modules with CL30 timings—significantly better than the CL46 timings normally recommended by JEDEC for this performance category. This translates to an absolute latency of just 9.375 ns for G.Skill’s modules, compared to the 14.375 ns latency for standard JEDEC modules—a considerable reduction of roughly 35%.
These DDR5-6400 CL30 39-39-102 modules come with a 16 GB capacity and are packaged as 32 GB dual-channel kits. Although G.Skill hasn’t shared information about voltages, they are expected to be higher than the JEDEC standards.
G.Skill intends to release these modules for both AMD systems, supporting EXPO profiles (including Trident Z5 Neo RGB and Trident Z5 Royal Neo), and for Intel systems, compatible with XMP 3.0 profiles (Trident Z5 RGB and Trident Z5 Royal). Particularly for AMD AM5 setups, which reach practical limits around 6000 MT/s to 6400 MT/s for DDR5, these modules should enhance performance with AMD’s Ryzen 7000 and 9000-series processors due to their alignment with AMD’s Infinity Fabric capabilities.
However, G.Skill cautions that these non-standard modules won’t be compatible with all systems, requiring high-end motherboards and efficient CPU cooling for optimal operation.
These cutting-edge ultra-low-latency memory kits will hit the global market through G.Skill’s distribution network starting in late August 2024. The company has kept mum on pricing, but given the premium nature and distinctive features of these memory kits, they’re expected to carry a premium price tag.
