ancient technology vs. future technology

i idea sparked from me reading manga... i went from reading futurist war about giant robots, to a thing about ancient artifacts and magical stuff and stuff
who would win in a all out war. if there were to be a war between ancient technology vs. future technology ??

a giant robot with guns vs a giant summoned troll ??
a tri lazer cannon vs a fire blast from stick ?
a metal giant cyborg vs. a dragon with fire breath ??
and stuff like that???

discuss!

your logic is flawed sir, first off magic isnt real so it isnt a technology and i doubt there is any hint that in the future wars will be fought with giant cyborg fighting machines playing sock em boppers