It makes sense comparing Optoma GT1080Darbee vs LG PF50KA because they both are able to give some premium features. Based on our rating, both projectors have the same overall rating of 6.6.
Advantages Optoma GT1080Darbee over LG PF50KA
Bigger projection screen size: 45-303 inch vs 25-100 inch
Better brightness: 3000 vs 600 lumens
3D support
Advantages LG PF50KA over Optoma GT1080Darbee
Lower power consumption, 65 W vs 262 W
Wireless connection enabled
Longer lamp life (normal mode): 30000 vs 5000 hours