The Hyte Y70 and the Phanteks G400A are tied in this objective comparison, as each component leads in two out of eight measured specifications. The Hyte Y70 holds the advantage in maximum GPU length, offering an 8% increase in space for larger graphics cards. Conversely, the Phanteks G400A provides a significant benefit regarding cooling hardware, featuring a 100% increase in the number of included fans compared to its competitor.

Choose the Hyte Y70 if your primary requirement is accommodating the longest possible graphics cards for your build. Select the Phanteks G400A if you prioritize out-of-the-box cooling solutions, as it doubles the quantity of included fans. Both cases offer comparable specifications across the remaining categories, so your final decision should depend entirely on whether you value additional internal clearance for your GPU or a more complete set of pre-installed fans.