Huge difference!!! People are totally missing the key here. The big deal is the change in die size from 45nm on the OMAP to 28nm on the Snapdraon S4 Plus. Also the integrated 28nm LTE/cdma/evdo chipset as well. Yeah, it's faster but you'll get much better battery life under heavy use and heavy data use with the Maxx HD compared to the Maxx because of the smaller die size and integrated radio. It will not get as hot either, hence less wasted battery.
Oh yeah, it's great having a 4.7" display too. Higher resolution may not help much but it doesn't hurt and the faster GPU makes sure it doesn't slow things down. I had it side by side with a coworkers Maxx and the phone is about the same, no bigger, maybe a little smaller. I love the design and build of the Maxx HD. The only boneheaded thing Moto did was give it MicroSDHC instead of MicroHDXC but I don't need that anyway. It would have been nice to have 2GB of RAM for future upgradeable I guess but I don't notice any problems with 1GB. Ok, one other boneheaded move...the camera should be BSI. There is no excuse for not having a BSI camera on a high-end phone. The great build and water-proof nano-coating help make up for those things. The battery life really makes up for anything else. It's just great to have a phone you can use for anything and not kill it in a day.
Oh yeah, it's great having a 4.7" display too. Higher resolution may not help much but it doesn't hurt and the faster GPU makes sure it doesn't slow things down. I had it side by side with a coworkers Maxx and the phone is about the same, no bigger, maybe a little smaller. I love the design and build of the Maxx HD. The only boneheaded thing Moto did was give it MicroSDHC instead of MicroHDXC but I don't need that anyway. It would have been nice to have 2GB of RAM for future upgradeable I guess but I don't notice any problems with 1GB. Ok, one other boneheaded move...the camera should be BSI. There is no excuse for not having a BSI camera on a high-end phone. The great build and water-proof nano-coating help make up for those things. The battery life really makes up for anything else. It's just great to have a phone you can use for anything and not kill it in a day.