The Phanteks NV7 is the objective winner of this comparison, securing a lead in four out of eight evaluated specifications. Its most significant advantage is a 47% increase in maximum power supply unit length compared to the alternative. While the Thermaltake S100 TG holds its own in three categories, the Phanteks NV7 provides superior flexibility for housing larger power components, making it the more versatile choice for high-end builds requiring extensive power delivery hardware.

Users prioritizing hardware compatibility and space for larger power supplies should select the Phanteks NV7 for their system. Conversely, the Thermaltake S100 TG is the better option for builders who value out-of-the-box cooling, as it offers a 100% advantage in the number of included fans. Choosing between these two cases depends on whether your priority is the flexibility to install a longer power supply or the immediate benefit of pre-installed cooling hardware.