RetroArch has been ported to many platforms. That being said, Win 7 is better than Win 8 in my opinion for this.
RetroArch runs programs converted into dynamic libraries called libretro cores, using several user interfaces such as command-line interface, a few graphical user interfaces (GUI) optimized for gamepads (the most famous one being called XMB, a clone of Sony's XMB), several input, audio and video drivers, plus other sophisticated features like dynamic rate control, audio filters, multi-pass shaders, netplay, gameplay rewinding, cheats, etc. Citra is a Nintendo 3DS emulator for Mac that can run commercial games at 100 of their speed, in addition to adding a series of characteristics to improve. Many of the Mac graphics cards do not meet the certification requirements for 3ds Max and none (or very few) have passed certification testing in a while now. After just a single click, your iPhone app switched to Mac. iOS apps developers get the full experience of SwiftUI. This unique emulator is the first that allows users to experience the real 3D effect. As you probably already know, 3DS games do not come bundled with the computer, and we will have to download each game individually. In this third release there are already many 3DS games playable, and several games even have full functionality (like Mario Kart 7). The Nintendo 3DS Citra emulator provides great playability, allowing you to enjoy a lot of Nintendo 3DS video games both on PC, whether Windows, Linux or Mac OS, and on an Android device. 3DS Emulator Max is a closed source 3DS emulator for PC and MAC.
With Xcode, you can get the experience of your app’s performance on iPhone, iPad, and Mac OS. Our 3DS Emulator works on any OS (Windows/MAC/Linux). It is the reference implementation of the libretro API, It is licensed under the GNU GPLv3. Xcode is an exclusively designed iPhone emulator for Mac. RetroArch is a free, open-source and cross-platform front-end for emulators, game engines, video games, media players and other applications.