The 1.5.0 dev cycle was characterized by significant breakthroughs in graphics accuracy and core hardware emulation:
Every game is different, but here is a baseline for high-end performance on a mid-range PC (e.g., Ryzen 5, GTX 1060 or better): pcsx2 1.5.0 dev build
: While Vulkan didn't become the "gold standard" until later 1.7.0 builds, 1.5.0 saw massive improvements to the OpenGL (Hardware) pcsx2 1.5.0 dev build