Dealing with VRAM bandwidth bottlenecks on RX 9060 XT?
Whenever the streets get packed with cars and NPCs, my frame rate tanks from 90 FPS to 42 FPS, which completely kills the driving experience. I was honestly panicking. The memory controller on the Vastarmor RX 9060 XT 16GB was hitting latency peaks of 110-140ns while trying to push 8K textures. I tried the low-latency mode in the drivers, but that just made the frame drops happen more often, which was maddening. I eventually went into the BIOS, forced the PCIe slot to Gen 4 mode, and set VRAM priority to maximum in the control panel. RivaTuner showed frame times dropping from 15-35ms to a steady 8-12ms, making city traversal feel way more fluid. I did have a moment where some peripherals stopped working after locking the PCIe lane, but reseating the expansion card fixed it. GPU temps are sitting between 64-72℃ with VRAM usage at 12.5-14.1GB. Tests show an 18% boost in bandwidth efficiency, and the input response finally feels instant.
