The Fractal Design Meshify 3 is the objective winner of this comparison, securing victories in seven out of eight measured specifications. The most impactful advantage for this case is its included fans, which offer a 100% improvement over the Corsair 6500X. While the Corsair 6500X does hold a minor 3% lead in maximum cooler height, it falls behind in the majority of the evaluated categories, making the Fractal Design Meshify 3 the superior choice based on the provided data.

Users prioritizing out-of-the-box cooling performance should select the Fractal Design Meshify 3 due to its significant advantage in included fans. Conversely, the Corsair 6500X is the appropriate choice for builders who specifically require the slight additional clearance for taller CPU coolers. By focusing on these distinct hardware benefits, you can choose the chassis that best aligns with your specific cooling configuration and component size requirements.