The Hyte Y40 is the objective winner of this comparison, securing a lead in four out of eight measured specifications. The most impactful advantage offered by this case is its cooling configuration, as it provides 100% more included fans than the alternative. This hardware inclusion significantly enhances the out-of-the-box thermal readiness of the system compared to the competing model, which falls behind in total fan count.

Users prioritizing immediate thermal performance and out-of-the-box utility should select the Hyte Y40 for its superior fan inclusion. Conversely, the Thermaltake S100 TG is the better choice for budget-conscious builders, as it holds a 67% advantage in MSRP. Those who prefer to allocate their remaining funds elsewhere or who do not require the additional cooling hardware provided by the former will find the latter to be the more economical option.