Very fast. Negligible difference vs my brother's G2. We're at a point where all of the phone's being released now can handle anything you throw at it. We have hand held devices that are more powerful than some PC's. SGS4 is horrible. Samsung is scared that Google purchased Motorola and is trying to mimic google apps and give it to you preinstalled with no option to uninstall except disabling through app manager. A bunch of my friends have the GS4, after disabling about 50 apps, some which sit in the RAM and are unkillable, the phone is decent. Motorola's x8 processor blows every other phone's launcher navigation out of the water. And with Nova Launcher, not even the slightest bit of lag. Snap 600 with 2gb RAM will keep you very happy. Best Amoled screen that I've seen also. Thank you Moto for not using pentile anymore!