Fixing DDR5 4800MHz bandwidth bottlenecks in KCD?
Walking through those medieval streets, the frame rate would suddenly jump all over the place, which is incredibly jarring at 4K. While the ADATA ValuRAM 8GB DDR5 4800 is stable, the bandwidth becomes a massive bottleneck when the game calculates complex NPC AI, leaving the CPU cores just waiting for data. Frame times were swinging wildly between 20-45ms. I tried lowering the rendering scale, but the image became a blurry mess and the drops stayed—which actually made me excited to try a deeper fix. I went into the BIOS, flipped the memory power management from Power Saving to High Performance, and nudged the voltage from 1.1V to 1.2V for better signal integrity. Looking at the RTSS curve, frame times finally tightened up to 14-18ms, and the towns feel way more fluid. I did notice a 5℃ temp spike after the switch, but I fixed that by tweaking my case airflow. RAM now sits at 45-50℃ with a peak bandwidth of 32GB/s. The game is finally playable without those annoying hitches.
