This doesn't have the latest 820 but the 650 seems to be somewhere between the 808 and 810 with a slightly slower clock speed. Im a noob so this might be wrong.lol but it seems that the 650 would still be faster than the 800/801
I'm highly considering this phone. I currently have the Experia X with the 650 processor and it's pretty fast. I don't see that much of a difference actually in my Droid Z Force than my X to be honest. Paper is different than real world. I think it will be a good phone. My only drawback is why didn't they go 1080p on it. I know it's a small screen but 1080p is definitely better real world.
The 810 in the Xperia Z5C is actually slower than the 650 in the X Compact, why? Because the 810 had to be underclocked to reduce overheating and also power consumption. If you search Youtube there are a couple of comparisions of both devices.