While the SNES relied on samples, the Sega Genesis (Mega Drive) utilized the Yamaha YM2612 chip, which employed Frequency Modulation (FM) synthesis. This technology produced sharp, metallic, and gritty sounds that were distinctly different from the "muffled" warmth of the SNES. This naturally lent itself to genres like techno, dance, heavy metal, and funk, creating a distinctive "Sega Sound" that defined the console wars.