Appreciate all of the feedback. I'm currently trying to do a Launchbox build with my Sega New Astro City. Getting a PC to run and come through on the native 15hz monitor requires a few things, not the least of which is a very specific series of lower powered GPUs. I'm currently looking at an AMD Radeon HD 6450 512MB DDR3 PCI-E x16 Low Pro card because it's near the maximum of what has been proven to be allowed given my limitations and current setup. There is a threshold at which the CRT Emudriver doesn't work with GPUs of newer quality so I'm sort of locked into a specific type of card. Wondering if that Radeon is enough in a nice Dell Optiplex build to get the job done for Mugen and Openbor or if the hardware is a little too dated given the newer content being produced as of late. Again, thank you for all the feedback thus far.