Since my project is not running yet, how does a gen III hemi stack up against a big block sound wise?

I keep hearing that Gen III motors are not as loud as other older engines, so if there were 2 cars, one with a 11:1 big block, and one with a 11:1 Gen III given the same type of exhaust would the Gen III be much quieter?

I hope not as the sound is important to me.