With that CPU @ 1.84 GHz you may run into some issues with Dreamcast, Saturn and possibly N64 emulation depending on the emulators you want to use. Retroarch cores, Demul and Mednafen are definitely out of the question though you may have some better luck with SSF for Saturn, ePSXe for PSX and NullDC for Dreamcast.
Keep in mind though I have no experience with this specific CPU so your mileage may be better than expected. I just know from previous experience with processors at that speed emulating those systems can be problematic.