In this video I explain why PS3 emulation is so fast, and I definitely don't spend half of the video gushing over x86 instructions. I sort of made this video as a response to all the videos with a title along the lines of "why is the PS3 hard to emulate" without actually going into any technical details beyond "the PS3 is complex". Additional reading: RPCS3 blog: https://rpcs3.net/blog/ My blog on AVX-512 and RPCS3: https://whatcookie.github.io/posts/why-is-avx-512-useful-for-rpcs3/ RPCS3 youtube channel: https://www.youtube.com/@RPCS3_emu FOSDEM video on RPCS3 internals by AlexAltea https://www.youtube.com/watch?v=4joCMfTPP4M PS3 hardware overview https://www.copetti.org/writings/consoles/playstation-3/ Chapters 0:00 - Intro 2:05 - SPU introduction 2:20 - SPU Xfloat 4:34 - Ninja Gaiden Comparisons 5:27 - Specific SPU FP instructions 8:46 - SHUFB 11:14 - SHUFB performance discussion 12:30 - VG2P8AFFINEQB path 16:14 - VPERM2B 17:35 - ISA and performance 19:17 - Loads and stores 20:49 - Sleepy Nier 21:48 - Conclusion