So I finally updated to the Nvidia 595.58.03 open drivers today on the KDE Neon system and decided to give the new and still under development Vulkan Descriptor Heap fixes a go. So far the only non native Vulkan title I've tested CP2077 is as it has a handy inbuilt benchmark and I have results from a previous run at the same settings, and the results are simply amazing, with the GPU sitting at an almost constant 95 - 99% utilization now.
Hardware used is identical to specs in sig. Resolution is 1200p, all graphics settings are maxed out and full path based RT is enabled along with DLSS4 Performance, FG, and Ray Reconstruction. running Proton-CachyOS Latest with PROTON_ENABLE_WAYLAND=1 and PROTON_VKD3D_HEAP=1 added to Steam launch options for the game. Results as follows.
Pre descriptor heap fix and 580 drivers:
View attachment 799867
Post descriptor heap fix and 595 drivers:
View attachment 799868
Comparing Min, Max and Avg figures, results as follows:
Min: +24.33 fps
Max: +19.18 fps
AVG: +13.74 fps.
The notable increases in min fps results indicate the CPU bottleneck is finally being vastly reduced, which is also backed up by the notable increase in GPU utilization.
26% improvement in the 1% lows is a great result.
Hopefully it holds for all titles.