The Corsair 4000D RS Frame and the Thermaltake The Tower 300 are tied in this objective comparison, as each component leads in three distinct specifications with two categories resulting in a draw. The most impactful advantage for the Corsair 4000D RS Frame is its included fans, which offer a 100% improvement over the alternative. Conversely, the Thermaltake The Tower 300 provides a significant benefit in cooling compatibility, featuring a 24% advantage in maximum cooler height.

Users prioritizing out-of-the-box cooling airflow should select the Corsair 4000D RS Frame to take advantage of the superior fan inclusion. Those planning to utilize larger, high-performance air cooling solutions should choose the Thermaltake The Tower 300 to benefit from its increased clearance for taller hardware. Both cases offer balanced feature sets, so the final decision rests on whether your specific build requires immediate fan integration or additional room for a larger CPU cooler.