Architectural Shingles – Cedar Shakes: Some of the most attractive architectural roofing shingles simulate cedar wood shakes (such as CertainTeed’s Presidential Shake® shingles). These shingles are quite thick with random slots similar to real shakes.
Architectural Shingles – Slate: Another unique architectural shingle design imitates the look of slate (such as CertainTeed’s Belmont® , Grand Manor® and Carriage House® shingles) without the weight issues that normally accompany those materials. These architectural roofing shingles do not require any additional roof support as slate would.
The products’ random colors and textures better accent the steep roof planes, turrets, and gable features of roofs. Many product lines offer hip and ridge accessory shingles (such as CertainTeed’s Cedar Crest®, Shadow Ridge® and Mountain Ridge®) that highlight a roof’s many sections and complement the shingle.
According to: https://www.certainteed.com/residential-roofing/what-are-architectural-roofing-shingles/