cpu recommendation for low wattage nvr box

I recently bought a Dahua nvr and 5 Ip cameras but not crazy about the nvr and was thinking of going the pc server route. I was thinking the AMD Athlon 5350 APU would do the trick at only 25watts draw. I need it to display 5 IP cameras at 3mp as well as write to the 2 drives. Would this do the trick or do I need more power?

I have a 10W draw at 100% CPU with a Celeron NUC, about 8W during normal state.