DX228mod is an all-degree upgrade to DX208mod (only the AMP8 was modified) as far as I can tell. The sound signature was changed a little bit on 228mod, though overall sensation is quite similar to each other. However, the performance of 220 is relatively lower than 200 as I don't find any unacceptable lag on 200 but definitely on 220. The SoC, which seems to be the same RK3688 but overclocked, may not be capable to handle a Full HD resolution screen well. The actual situation is even I use Live Wallpaper (Galaxy Pack) on 200 (latest firmware with Lurker's add-on) with Nova Launcher and a bundle of apps, it was just smooth like a good phone. But with the same condition, my 220 (latest firmware with Lurker's add-on) was so dull that I had to use basic wallpaper instead.