Rpcs3 Alpha
Red Dead Redemption and MGS4 remain the toughest benchmarks.
For years, RPCS3 relied on OpenGL, which was slow and buggy. An alpha build in mid-2016 introduced an experimental Vulkan renderer. Immediately, performance doubled or tripled. Tekken 6 went from 5 FPS to 25 FPS. The alpha was the only place to get this renderer. rpcs3 alpha