G.Skill Unveils Low Latency DDR5 Memory Modules: Achieving CL30 at 6400 MT/s

On Tuesday, G.Skill unveiled its new ultra-low-latency DDR5-6400 memory modules, showcasing an impressive CAS latency of just 30 clocks. These modules are set to make waves as they push the boundaries of what’s possible for DDR5-6400 sticks, and they’ll be compatible with both AMD and Intel CPU-based systems.

With each new generation of DDR memory, we typically see a boost in data transfer rates but also an elongation of relative latencies. Now, while the higher bandwidth usually compensates for the performance drawbacks of longer timings, some applications truly benefit from lower latencies. However, reducing latencies can be more challenging than simply ramping up data transfer speeds, which is why low-latency modules remain a rarity in the market.

Despite these challenges, G.Skill has seemingly managed to hand-pick the right DDR5 memory chips and craft suitable printed circuit boards to deliver DDR5-6400 modules with remarkable CL30 timings. This achievement marks a significant improvement over the JEDEC-recommended CL46 timings for this speed tier. While JEDEC-standard modules have an absolute latency of 14.375 ns, G.Skill’s offering impressively reduces that to just 9.375 ns—a notable 35% improvement.

The DDR5-6400 CL30 39-39-102 modules will be offered in 16 GB units, available as 32 GB dual-channel kits. G.Skill hasn’t disclosed the operating voltages, though these are expected to exceed the JEDEC benchmarks.

G.Skill is planning to roll out these DDR5-6400 modules for AMD systems with EXPO profiles—specifically the Trident Z5 Neo RGB and Trident Z5 Royal Neo—while also catering to Intel setups with XMP 3.0 profiles, including the Trident Z5 RGB and Trident Z5 Royal. Particularly for AMD’s AM5 systems, which cap out around 6000 MT/s to 6400 MT/s for DDR5 memory—aligned with the limits of AMD’s Infinity Fabric in a 1:1 ratio—these modules hold considerable promise for Ryzen 7000 and Ryzen 9000-series processors.

However, it’s important to note that these non-standard modules won’t be compatible with every setup. They’ll perform best on high-end motherboards that feature adequate CPU cooling.

These cutting-edge memory kits will hit the global market through G.Skill’s partners starting in late August 2024. As of now, pricing remains under wraps, but considering the premium nature and unique specs of these modules, they’re expected to carry a premium price tag.